subject:(Sensor Placement)

University of New South Wales

1. Laird, John. Modelling the impact of sensor placement and fusion for traffic monitoring.

Degree: Computer Science & Engineering, 2013, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/53000 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11678/SOURCE01?view=true

► This thesis develops models to evaluate the impact of multi-modal sensor placement configurations on obtaining traffic parameters required for a variety of traffic monitoring and… (more)

▼ This thesis develops models to evaluate the impact of multi-modal sensor placement configurations on obtaining traffic parameters required for a variety of traffic monitoring and management applications.Existing traffic management strategies generally rely on the commonly used induction loop sensors, which are highly accurate presence detectors, however they have a limited sensing area. Alternate sensor modalities may provide a higher information gain in comparison, especially vision based sensors. An inherent problem with using vision based sensors in traffic management is the occlusion between vehicles, which can make detection of individual vehicles difficult.Information fusion from multiple sensors provides much richer information for scene understanding, leading to a greater ability to coordinate traffic management efficiently. Thus, effective sensor placement and fusion of data can improve the efficiency of traffic management. The aim of this thesis is to evaluate the impact of multi-modal sensor placement, and as a result improve the estimation accuracy of road traffic parameters obtained from various sensor configurations. More specifically, vision based sensors are studied, and later fused with inductive loops.In order to achieve this, models are developed to simulate various traffic flows, and to ensure consistency and relevance of the simulations to real world traffic. Models for single sensor modality and multi-modal sensor fusion are developed and are also validated. These models enable evaluation of sensor placement configurations to determine effectiveness for specific traffic applications.Results of various single sensor configurations demonstrate that the impact of view occlusion on the ability to detect vehicles can be improved by considering sensor placement. Combining inductive loops and video cameras by sensor fusion was found to overcome the problem of occlusion, resulting in a decided improvement in parameter estimation for traffic management and monitoring applications. For example, the sensor fusion models developed resulted in the queue length estimation accuracy being improved by up to 20%. Finally, by applying the models presented in this thesis to current ramp metering strategies, viable alternative sensor deployment solutions are recommended. Advisors/Committee Members: Chou, Chun Tung, Computer Science & Engineering, Faculty of Engineering, UNSW, Geers, D. Glenn, NICTA, Wang, Yang, NICTA.

Subjects/Keywords: Traffic management; Sensor placement; Sensor fusion

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APA (6^th Edition):

Laird, J. (2013). Modelling the impact of sensor placement and fusion for traffic monitoring. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/53000 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11678/SOURCE01?view=true

Chicago Manual of Style (16^th Edition):

Laird, John. “Modelling the impact of sensor placement and fusion for traffic monitoring.” 2013. Doctoral Dissertation, University of New South Wales. Accessed December 16, 2019. http://handle.unsw.edu.au/1959.4/53000 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11678/SOURCE01?view=true.

MLA Handbook (7^th Edition):

Laird, John. “Modelling the impact of sensor placement and fusion for traffic monitoring.” 2013. Web. 16 Dec 2019.

Vancouver:

Laird J. Modelling the impact of sensor placement and fusion for traffic monitoring. [Internet] [Doctoral dissertation]. University of New South Wales; 2013. [cited 2019 Dec 16]. Available from: http://handle.unsw.edu.au/1959.4/53000 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11678/SOURCE01?view=true.

Council of Science Editors:

Laird J. Modelling the impact of sensor placement and fusion for traffic monitoring. [Doctoral Dissertation]. University of New South Wales; 2013. Available from: http://handle.unsw.edu.au/1959.4/53000 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:11678/SOURCE01?view=true

University of Alberta

2. Mortazavi ,Seyed Hossein. Designing Hierarchical WSNs for Heterogeneous Outdoor Environments.

Degree: MS, Department of Computing Science, 2012, University of Alberta

URL: https://era.library.ualberta.ca/files/xk81jm08r

► In this project we study the problem of wireless sensor network (WSN) node placement in a modelled environment. Although various optimal and sub-optimal techniques with… (more)

Subjects/Keywords: Heterogeneous environments; Wireless Sensor Networks; Node placement

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APA (6^th Edition):

Hossein, M. ,. (2012). Designing Hierarchical WSNs for Heterogeneous Outdoor Environments. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/xk81jm08r

Chicago Manual of Style (16^th Edition):

Hossein, Mortazavi ,Seyed. “Designing Hierarchical WSNs for Heterogeneous Outdoor Environments.” 2012. Masters Thesis, University of Alberta. Accessed December 16, 2019. https://era.library.ualberta.ca/files/xk81jm08r.

MLA Handbook (7^th Edition):

Hossein, Mortazavi ,Seyed. “Designing Hierarchical WSNs for Heterogeneous Outdoor Environments.” 2012. Web. 16 Dec 2019.

Vancouver:

Hossein M,. Designing Hierarchical WSNs for Heterogeneous Outdoor Environments. [Internet] [Masters thesis]. University of Alberta; 2012. [cited 2019 Dec 16]. Available from: https://era.library.ualberta.ca/files/xk81jm08r.

Council of Science Editors:

Hossein M,. Designing Hierarchical WSNs for Heterogeneous Outdoor Environments. [Masters Thesis]. University of Alberta; 2012. Available from: https://era.library.ualberta.ca/files/xk81jm08r

Virginia Tech

3. Suryan, Varun. Learning a Spatial Field in Minimum Time with a Team of Robots.

Degree: MS, Computer Engineering, 2018, Virginia Tech

URL: http://hdl.handle.net/10919/93735

► We solve the problem of measuring a physical phenomenon accurately using a team of robots in minimum time. Examples of such phenomena include the amount… (more)

Subjects/Keywords: Sensor Placement; Informative Path Planning; Gaussian Processes

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APA (6^th Edition):

Suryan, V. (2018). Learning a Spatial Field in Minimum Time with a Team of Robots. (Masters Thesis). Virginia Tech. Retrieved from http://hdl.handle.net/10919/93735

Chicago Manual of Style (16^th Edition):

Suryan, Varun. “Learning a Spatial Field in Minimum Time with a Team of Robots.” 2018. Masters Thesis, Virginia Tech. Accessed December 16, 2019. http://hdl.handle.net/10919/93735.

MLA Handbook (7^th Edition):

Suryan, Varun. “Learning a Spatial Field in Minimum Time with a Team of Robots.” 2018. Web. 16 Dec 2019.

Vancouver:

Suryan V. Learning a Spatial Field in Minimum Time with a Team of Robots. [Internet] [Masters thesis]. Virginia Tech; 2018. [cited 2019 Dec 16]. Available from: http://hdl.handle.net/10919/93735.

Council of Science Editors:

Suryan V. Learning a Spatial Field in Minimum Time with a Team of Robots. [Masters Thesis]. Virginia Tech; 2018. Available from: http://hdl.handle.net/10919/93735

University of Washington

4. Manohar, Krithika. Data-Driven Sensor Placement Methods.

Degree: PhD, 2018, University of Washington

URL: http://hdl.handle.net/1773/42951

► The scalable optimization of sensor placement remains an open challenge in engineering and physical sciences. Optimal placements can only be determined in general using a… (more)

Subjects/Keywords: Actuator placement; Dimensionality reduction; Sensor placement; Signal reconstruction; Applied mathematics; Applied mathematics

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APA (6^th Edition):

Manohar, K. (2018). Data-Driven Sensor Placement Methods. (Doctoral Dissertation). University of Washington. Retrieved from http://hdl.handle.net/1773/42951

Chicago Manual of Style (16^th Edition):

Manohar, Krithika. “Data-Driven Sensor Placement Methods.” 2018. Doctoral Dissertation, University of Washington. Accessed December 16, 2019. http://hdl.handle.net/1773/42951.

MLA Handbook (7^th Edition):

Manohar, Krithika. “Data-Driven Sensor Placement Methods.” 2018. Web. 16 Dec 2019.

Vancouver:

Manohar K. Data-Driven Sensor Placement Methods. [Internet] [Doctoral dissertation]. University of Washington; 2018. [cited 2019 Dec 16]. Available from: http://hdl.handle.net/1773/42951.

Council of Science Editors:

Manohar K. Data-Driven Sensor Placement Methods. [Doctoral Dissertation]. University of Washington; 2018. Available from: http://hdl.handle.net/1773/42951

5. Banik, Bijit Kumar. Sewer systems management : illicit intrusion identification and optimal sensor placement : Management des réseaux d’assainissement : identification des pollutions ponctuelles et optimisation du placement de capteurs.

Degree: Docteur es, Sciences et Techniques de l'Environnement, 2015, Université Paris-Est

URL: http://www.theses.fr/2015PESC1112

► La gestion incorrecte des eaux usées peut entraîner des dommages importants sur les stations de traitement et sur le récepteur final (écosystème aquatique). Dans le… (more)

▼ La gestion incorrecte des eaux usées peut entraîner des dommages importants sur les stations de traitement et sur le récepteur final (écosystème aquatique). Dans le passé, la gestion des eaux usées n'a pas retenu beaucoup d'attention de la part des différentes parties prenantes. Toutefois, récemment, le changement de modèle de gestion des eaux usées et des eaux pluviales, a évolué du simple contrôle sanitaire et des inondations, à une protection globale de l'environnement. Un aspect très important, dans la politique de gestion des systèmes d'assainissement, est de détecter et d'éliminer une intrusion illicite, qui peut être intentionnelle. Ce travail thèse de doctorat est constitué de deux parties principales. Dans la première partie les problèmes relatifs à l'identification d'une intrusion illicite dans un système d'assainissement ont été abordés, proposant une méthodologie d'identification de la source (IS). Dans la deuxième partie, différentes méthodologies innovantes ont été proposées pour trouver l'emplacement optimal d'un nombre limité de capteurs dans le système d'assainissement. Dans cette thèse, le ISest résolu grâce à un modèle de simulation-optimisation, combinant l'outil de simulation Storm Water Management Model (SWMM) avec un code d'optimisation basé sur un algorithme génétique (Galib). Ceci nécessite des mesures en ligne de certains capteurs placés sur le réseau. Le SWMM ne possède pas l'outil de programmation. Afin d'intégrer le simulateur SWMM à la méthodologie de IS automatisé proposée, un outil ad-hoc a été développé. Une procédure de présélection, basée sur le concept de la matrice de la pollution et compte tenu de la topologie des égouts, a été mis en œuvre pour réduire l'effort de calcul. La méthodologie IS a été testée sur deux réseaux différents. L'un est un réseau connu dans la littérature, extrait du manuel de SWMM, tandis que l'autre réseau est un sous-bassin versant du réseau d'assainissement de Massa Lubrense, village situé près de Naples, en Italie. Les résultats montrent que les procédures de présélection réduisent considérablement l'effort de calcul, avec un rôle crucial pour les grands systèmes. En enquêtant sur la performance de la méthodologie IS, sa sensibilité par rapport aux paramètres de l'algorithme génétique a été vérifiée. En outre, l'influence de l'incertitude des flux entrés et des erreurs de mesure sur les résultats ont été approfondi. Un autre problème fondamental, associé à la surveillance de la qualité de l'eau des égouts, est le placement optimal d'un nombre limité de capteurs pour la détection précoce d'une source illicite. Dans la thèse l'emplacement du capteur est exprimé avec un problème d'optimisation mono ou multi-objectif. Le SWMM est utilisé pour extraire les données de qualité de l'eau. Différentes formulations ont été proposées et testées. Tout d'abord, la Théorie de l'Information (TI) basée sur la méthodologie d'optimisation multi-objectif est présentée. La TI considère deux objectifs : l'entropie conjointe, le contenu de l'information dans un ensemble de… Advisors/Committee Members: Van Hullebusch, Eric (thesis director).

Subjects/Keywords: Gestion; Swmm5; Optimisation; Intrusion illicite; Placement de capteur; Sewer; Swmm5; Optimization; Illicit intrusion; Sensor placement

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APA (6^th Edition):

Banik, B. K. (2015). Sewer systems management : illicit intrusion identification and optimal sensor placement : Management des réseaux d’assainissement : identification des pollutions ponctuelles et optimisation du placement de capteurs. (Doctoral Dissertation). Université Paris-Est. Retrieved from http://www.theses.fr/2015PESC1112

Chicago Manual of Style (16^th Edition):

Banik, Bijit Kumar. “Sewer systems management : illicit intrusion identification and optimal sensor placement : Management des réseaux d’assainissement : identification des pollutions ponctuelles et optimisation du placement de capteurs.” 2015. Doctoral Dissertation, Université Paris-Est. Accessed December 16, 2019. http://www.theses.fr/2015PESC1112.

MLA Handbook (7^th Edition):

Banik, Bijit Kumar. “Sewer systems management : illicit intrusion identification and optimal sensor placement : Management des réseaux d’assainissement : identification des pollutions ponctuelles et optimisation du placement de capteurs.” 2015. Web. 16 Dec 2019.

Vancouver:

Banik BK. Sewer systems management : illicit intrusion identification and optimal sensor placement : Management des réseaux d’assainissement : identification des pollutions ponctuelles et optimisation du placement de capteurs. [Internet] [Doctoral dissertation]. Université Paris-Est; 2015. [cited 2019 Dec 16]. Available from: http://www.theses.fr/2015PESC1112.

Council of Science Editors:

Banik BK. Sewer systems management : illicit intrusion identification and optimal sensor placement : Management des réseaux d’assainissement : identification des pollutions ponctuelles et optimisation du placement de capteurs. [Doctoral Dissertation]. Université Paris-Est; 2015. Available from: http://www.theses.fr/2015PESC1112

University of Alberta

6. Vlasenko, Iuliia. Deployment Planning for Location Recognition in the Smart-Condo™: Simulation, Empirical Studies and Sensor Placement Optimization.

Degree: MS, Department of Computing Science, 2013, University of Alberta

URL: https://era.library.ualberta.ca/files/mw22v595s

► The Smart-Condo™ is a comprehensive platform that aims to provide a variety of services, based on information gleaned from sensors deployed in an apartment, that… (more)

Subjects/Keywords: Sensor Placement Optimization; Indoor Localization; Ambient Assisted Living; Wireless Sensor Networks; Smart Home

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APA (6^th Edition):

Vlasenko, I. (2013). Deployment Planning for Location Recognition in the Smart-Condo™: Simulation, Empirical Studies and Sensor Placement Optimization. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/mw22v595s

Chicago Manual of Style (16^th Edition):

Vlasenko, Iuliia. “Deployment Planning for Location Recognition in the Smart-Condo™: Simulation, Empirical Studies and Sensor Placement Optimization.” 2013. Masters Thesis, University of Alberta. Accessed December 16, 2019. https://era.library.ualberta.ca/files/mw22v595s.

MLA Handbook (7^th Edition):

Vlasenko, Iuliia. “Deployment Planning for Location Recognition in the Smart-Condo™: Simulation, Empirical Studies and Sensor Placement Optimization.” 2013. Web. 16 Dec 2019.

Vancouver:

Vlasenko I. Deployment Planning for Location Recognition in the Smart-Condo™: Simulation, Empirical Studies and Sensor Placement Optimization. [Internet] [Masters thesis]. University of Alberta; 2013. [cited 2019 Dec 16]. Available from: https://era.library.ualberta.ca/files/mw22v595s.

Council of Science Editors:

Vlasenko I. Deployment Planning for Location Recognition in the Smart-Condo™: Simulation, Empirical Studies and Sensor Placement Optimization. [Masters Thesis]. University of Alberta; 2013. Available from: https://era.library.ualberta.ca/files/mw22v595s

Texas A&M University

7. Singh, Abhay Kumar. Sensor network and soft sensor design for stable nonlinear dynamic systems.

Degree: 2006, Texas A&M University

URL: http://hdl.handle.net/1969.1/4326

► In chemical processes, online measurements of all the process variables and parameters required for process control, monitoring and optimization are seldom available. The use of… (more)

▼ In chemical processes, online measurements of all the process variables and parameters required for process control, monitoring and optimization are seldom available. The use of soft sensors or observers is, therefore, highly significant as they can estimate unmeasured state variables from available process measurements. However, for reliable estimation by a soft sensor, the process measurements have to be placed at locations that allow reconstruction of process variables by the soft sensors. This dissertation presents a new technique for computing an optimal measurement structure for state and parameter estimation of stable nonlinear systems. The methodology can compute locations for individual sensors as well as networks of sensors where a trade-off between process information, sensor cost, and information redundancy is taken into account. The novel features of the approach are (1) that the nonlinear behavior that a process can exhibit over its operating region can be taken into account, (2) that the technique is applicable for systems described by lumped or by distributed parameter models, (3) that the technique reduces to already established methods, if the system is linear and only some of the objectives are examined, (4) that the results obtained from the procedure can be easily interpreted, and (5) that the resulting optimization problem can be decomposed, resulting in a significant reduction of the computational effort required for its solution. The other issue addressed in this dissertation is designing soft sensors for a given measurement structure. In case of high-dimensional systems, the application of conventional soft sensor or observer designs may not always be practical due to the high computational requirements or the resulting observers being too sensitive to measurement noise. To address these issues, this dissertation presents reduced-order observer design techniques for state estimation of high-dimensional chemical processes. The motivation behind these approaches is that subspaces, which are close to being unobservable, cannot be correctly reconstructed in a realistic setting due to measurement noise and inaccuracies in the model. The presented approaches make use of this observation and reconstruct the parts of the system where accurate state estimation is possible. Advisors/Committee Members: Hahn, Juergen (advisor), El-Halwagi, Mahmoud (committee member), Jayaraman, Arul (committee member), Mannan, M. Sam (committee member), Vadali, Srinivas R. (committee member).

Subjects/Keywords: SENSOR PLACEMENT; SOFT SENSOR; NONLINEAR SYSTEMS

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APA (6^th Edition):

Singh, A. K. (2006). Sensor network and soft sensor design for stable nonlinear dynamic systems. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/4326

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Singh, Abhay Kumar. “Sensor network and soft sensor design for stable nonlinear dynamic systems.” 2006. Thesis, Texas A&M University. Accessed December 16, 2019. http://hdl.handle.net/1969.1/4326.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Singh, Abhay Kumar. “Sensor network and soft sensor design for stable nonlinear dynamic systems.” 2006. Web. 16 Dec 2019.

Vancouver:

Singh AK. Sensor network and soft sensor design for stable nonlinear dynamic systems. [Internet] [Thesis]. Texas A&M University; 2006. [cited 2019 Dec 16]. Available from: http://hdl.handle.net/1969.1/4326.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Singh AK. Sensor network and soft sensor design for stable nonlinear dynamic systems. [Thesis]. Texas A&M University; 2006. Available from: http://hdl.handle.net/1969.1/4326

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Kentucky

8. Zhao, Jian. Camera Planning and Fusion in a Heterogeneous Camera Network.

Degree: 2011, University of Kentucky

URL: https://uknowledge.uky.edu/ece_etds/2

► Wide-area camera networks are becoming more and more common. They have widerange of commercial and military applications from video surveillance to smart home and from… (more)

▼ Wide-area camera networks are becoming more and more common. They have widerange of commercial and military applications from video surveillance to smart home and from traffic monitoring to anti-terrorism. The design of such a camera network is a challenging problem due to the complexity of the environment, self and mutual occlusion of moving objects, diverse sensor properties and a myriad of performance metrics for different applications. In this dissertation, we consider two such challenges: camera planing and camera fusion. Camera planning is to determine the optimal number and placement of cameras for a target cost function. Camera fusion describes the task of combining images collected by heterogenous cameras in the network to extract information pertinent to a target application. I tackle the camera planning problem by developing a new unified framework based on binary integer programming (BIP) to relate the network design parameters and the performance goals of a variety of camera network tasks. Most of the BIP formulations are NP hard problems and various approximate algorithms have been proposed in the literature. In this dissertation, I develop a comprehensive framework in comparing the entire spectrum of approximation algorithms from Greedy, Markov Chain Monte Carlo (MCMC) to various relaxation techniques. The key contribution is to provide not only a generic formulation of the camera planning problem but also novel approaches to adapt the formulation to powerful approximation schemes including Simulated Annealing (SA) and Semi-Definite Program (SDP). The accuracy, efficiency and scalability of each technique are analyzed and compared in depth. Extensive experimental results are provided to illustrate the strength and weakness of each method. The second problem of heterogeneous camera fusion is a very complex problem. Information can be fused at different levels from pixel or voxel to semantic objects, with large variation in accuracy, communication and computation costs. My focus is on the geometric transformation of shapes between objects observed at different camera planes. This so-called the geometric fusion approach usually provides the most reliable fusion approach at the expense of high computation and communication costs. To tackle the complexity, a hierarchy of camera models with different levels of complexity was proposed to balance the effectiveness and efficiency of the camera network operation. Then different calibration and registration methods are proposed for each camera model. At last, I provide two specific examples to demonstrate the effectiveness of the model: 1)a fusion system to improve the segmentation of human body in a camera network consisted of thermal and regular visible light cameras and 2) a view dependent rendering system by combining the information from depth and regular cameras to collecting the scene information and generating new views in real time.

Subjects/Keywords: Sensor Planning; Camera Placement; Sensor Fusion; Human Segmentation; Multi-camera Fusion; Electrical and Computer Engineering

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APA (6^th Edition):

Zhao, J. (2011). Camera Planning and Fusion in a Heterogeneous Camera Network. (Doctoral Dissertation). University of Kentucky. Retrieved from https://uknowledge.uky.edu/ece_etds/2

Chicago Manual of Style (16^th Edition):

Zhao, Jian. “Camera Planning and Fusion in a Heterogeneous Camera Network.” 2011. Doctoral Dissertation, University of Kentucky. Accessed December 16, 2019. https://uknowledge.uky.edu/ece_etds/2.

MLA Handbook (7^th Edition):

Zhao, Jian. “Camera Planning and Fusion in a Heterogeneous Camera Network.” 2011. Web. 16 Dec 2019.

Vancouver:

Zhao J. Camera Planning and Fusion in a Heterogeneous Camera Network. [Internet] [Doctoral dissertation]. University of Kentucky; 2011. [cited 2019 Dec 16]. Available from: https://uknowledge.uky.edu/ece_etds/2.

Council of Science Editors:

Zhao J. Camera Planning and Fusion in a Heterogeneous Camera Network. [Doctoral Dissertation]. University of Kentucky; 2011. Available from: https://uknowledge.uky.edu/ece_etds/2

Texas A&M University

9. Yu, Dan. State Estimation of Spatio-Temporal Phenomena.

Degree: 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/159046

► This dissertation addresses the state estimation problem of spatio-temporal phenomena which can be modeled by partial differential equations (PDEs), such as pollutant dispersion in the… (more)

▼ This dissertation addresses the state estimation problem of spatio-temporal phenomena which can be modeled by partial differential equations (PDEs), such as pollutant dispersion in the atmosphere. After discretizing the PDE, the dynamical system has a large number of degrees of freedom (DOF). State estimation using Kalman Filter (KF) is computationally intractable, and hence, a reduced order model (ROM) needs to be constructed first. Moreover, the nonlinear terms, external disturbances or unknown boundary conditions can be modeled as unknown inputs, which leads to an unknown input filtering problem. Furthermore, the performance of KF could be improved by placing sensors at feasible locations. Therefore, the sensor scheduling problem to place multiple mobile sensors is of interest. The first part of the dissertation focuses on model reduction for large scale systems with a large number of inputs/outputs. A commonly used model reduction algorithm, the balanced proper orthogonal decomposition (BPOD) algorithm, is not computationally tractable for large systems with a large number of inputs/outputs. Inspired by the BPOD and randomized algorithms, we propose a randomized proper orthogonal decomposition (RPOD) algorithm and a computationally optimal RPOD (RPOD*) algorithm, which construct an ROM to capture the input-output behaviour of the full order model, while reducing the computational cost of BPOD by orders of magnitude. It is demonstrated that the proposed RPOD_ algorithm could construct the ROM in real-time, and the performance of the proposed algorithms on different advection-diffusion equations. Next, we consider the state estimation problem of linear discrete-time systems with unknown inputs which can be treated as a wide-sense stationary process with rational power spectral density, while no other prior information needs to be known. We propose an autoregressive (AR) model based unknown input realization technique which allows us to recover the input statistics from the output data by solving an appropriate least squares problem, then fit an AR model to the recovered input statistics and construct an innovations model of the unknown inputs using the eigensystem realization algorithm. The proposed algorithm outperforms the augmented two-stage Kalman Filter (ASKF) and the unbiased minimum-variance (UMV) algorithm are shown in several examples. Finally, we propose a framework to place multiple mobile sensors to optimize the long-term performance of KF in the estimation of the state of a PDE. The major challenges are that placing multiple sensors is an NP-hard problem, and the optimization problem is non-convex in general. In this dissertation, first, we construct an ROM using RPOD_ algorithm, and then reduce the feasible sensor locations into a subset using the ROM. The Information Space Receding Horizon Control (I-RHC) approach and a modified Monte Carlo Tree Search (MCTS) approach are applied to solve the sensor scheduling problem using the subset. Various applications have been provided to demonstrate the… Advisors/Committee Members: Chakravorty, Suman (advisor), Junkins, John L. (committee member), Girimaji, Sharath (committee member), Darbha, Swaroop (committee member).

Subjects/Keywords: model reduction; spatio-temporal system; sensor placement; unknown input filtering

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APA (6^th Edition):

Yu, D. (2016). State Estimation of Spatio-Temporal Phenomena. (Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/159046

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yu, Dan. “State Estimation of Spatio-Temporal Phenomena.” 2016. Thesis, Texas A&M University. Accessed December 16, 2019. http://hdl.handle.net/1969.1/159046.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yu, Dan. “State Estimation of Spatio-Temporal Phenomena.” 2016. Web. 16 Dec 2019.

Vancouver:

Yu D. State Estimation of Spatio-Temporal Phenomena. [Internet] [Thesis]. Texas A&M University; 2016. [cited 2019 Dec 16]. Available from: http://hdl.handle.net/1969.1/159046.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yu D. State Estimation of Spatio-Temporal Phenomena. [Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/159046

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Iowa State University

10. Fontanini, Anthony David. Analyzing the characteristics of contaminant transport using the Perron-Frobenius operator in indoor building environments.

Degree: 2016, Iowa State University

URL: https://lib.dr.iastate.edu/etd/15909

► People in the developed world spend the majority of their lives indoors. While inside, people can be exposed to many different gaseous and particulate contaminants.… (more)

Subjects/Keywords: Contaminant transport; Markov Matrices; Quantifying mechanical ventilation; Sensor placement; Mechanical Engineering

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APA (6^th Edition):

Fontanini, A. D. (2016). Analyzing the characteristics of contaminant transport using the Perron-Frobenius operator in indoor building environments. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/15909

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Fontanini, Anthony David. “Analyzing the characteristics of contaminant transport using the Perron-Frobenius operator in indoor building environments.” 2016. Thesis, Iowa State University. Accessed December 16, 2019. https://lib.dr.iastate.edu/etd/15909.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Fontanini, Anthony David. “Analyzing the characteristics of contaminant transport using the Perron-Frobenius operator in indoor building environments.” 2016. Web. 16 Dec 2019.

Vancouver:

Fontanini AD. Analyzing the characteristics of contaminant transport using the Perron-Frobenius operator in indoor building environments. [Internet] [Thesis]. Iowa State University; 2016. [cited 2019 Dec 16]. Available from: https://lib.dr.iastate.edu/etd/15909.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Fontanini AD. Analyzing the characteristics of contaminant transport using the Perron-Frobenius operator in indoor building environments. [Thesis]. Iowa State University; 2016. Available from: https://lib.dr.iastate.edu/etd/15909

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University

11. Ramesh, Karthika. Multi-Hazard Response Characterization of Tall Buildings.

Degree: MS, Civil Engineering, 2016, Texas A&M University

URL: http://hdl.handle.net/1969.1/157979

► The series of recent extreme weather events and subsequent damage to the infrastructure has led to an increased concern regarding the design of structural systems… (more)

▼ The series of recent extreme weather events and subsequent damage to the infrastructure has led to an increased concern regarding the design of structural systems for multi-hazard criteria. Since much of the multi-storied infrastructure of the twentieth century exceeds nearly fifty years of service, innovative instrumentation of buildings has attracted a great deal of research attention. These increased environmental concerns coupled with the increasing population density result in the operational demand on these structures far exceeding their original design criteria or capacity. This research addresses the response characterization of tall building structures subject to strong ground motion and wind loading. The time history of various building designs is developed using a finite element idealization of the building subject to various environmental loading scenarios. The resulting time series of the response behavior is obtained at each building floor elevation. The characterization of response behavior is analyzed using the Time Domain Decomposition (TDD) method, which requires no prior assumptions about the nature of time series or the excitation. TDD’s application is first studied on a 20-story building where the first three translational and rotational modes are examined. The analysis is then extended to a more flexible 52-story idealized version of a prototype of the Prudential Tower located in Boston, Massachusetts. This research study investigates the reconstruction of response time series for arrays of sensors located at various floor elevations recognizing that sensor failure may occur and that some information may be lost. The sensor configurations presented are used to illustrate some of the intricacies involved in the application of the TDD method that affect the accuracy of the reconstruction of time domain response behavior. The interpretation of data based upon modal filtering was demonstrated to influence the process of signal reconstruction, complicating the relationship between the number of sensors and the modal information. Further, it was observed that the response behavior due to wind loading, which is basically a unidirectional load varying with both elevation and time, when compared with that from the bidirectional seismic loading case is quite different although they excite similar modal frequencies. The insights gained from this study help to quantify the role of sensor placement on tall buildings that are subject to regional multi-hazard loading that will vary in terms of both the nature and intensity of dynamic excitation. The research study also identified deficiencies in the underlying methodology that need further investigation to improve the robustness of this approach as a tool for dynamic response characterization. Advisors/Committee Members: Niedzwecki, John M (advisor), Barroso, Luciana R (committee member), Newton, Joseph (committee member).

Subjects/Keywords: response reconstruction; multi-hazard; time series; sensor placement

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APA (6^th Edition):

Ramesh, K. (2016). Multi-Hazard Response Characterization of Tall Buildings. (Masters Thesis). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/157979

Chicago Manual of Style (16^th Edition):

Ramesh, Karthika. “Multi-Hazard Response Characterization of Tall Buildings.” 2016. Masters Thesis, Texas A&M University. Accessed December 16, 2019. http://hdl.handle.net/1969.1/157979.

MLA Handbook (7^th Edition):

Ramesh, Karthika. “Multi-Hazard Response Characterization of Tall Buildings.” 2016. Web. 16 Dec 2019.

Vancouver:

Ramesh K. Multi-Hazard Response Characterization of Tall Buildings. [Internet] [Masters thesis]. Texas A&M University; 2016. [cited 2019 Dec 16]. Available from: http://hdl.handle.net/1969.1/157979.

Council of Science Editors:

Ramesh K. Multi-Hazard Response Characterization of Tall Buildings. [Masters Thesis]. Texas A&M University; 2016. Available from: http://hdl.handle.net/1969.1/157979

University of Wollongong

12. Yang, Changlin. Coverage problems in energy harvesting wireless sensor networks.

Degree: PhD, 2015, University of Wollongong

URL: 0805 DISTRIBUTED COMPUTING, 0906 ELECTRICAL AND ELECTRONIC ENGINEERING ; https://ro.uow.edu.au/theses/4434

► A Wireless Sensor Network (WSN), in general, contains many low-cost sensor nodes, each with the capability to monitor its surrounding environment. As conventional or… (more)

▼ A Wireless Sensor Network (WSN), in general, contains many low-cost sensor nodes, each with the capability to monitor its surrounding environment. As conventional or non-rechargeable WSNs are restricted by the nite battery capacity of sensor nodes, researchers have sought the help of renewable energy techniques such as solar and wind. Consequently, each sensor node, in the resulting energy harvesting WSN, is able to harvest energy and recharge its battery from its environment. Assuming no other failures, WSNs are now able to operate perpectually if all nodes have energy neutral operation; i.e., they harvest more energy than what they spend. A fundamental problem in energy harvesting WSNs is to maximize coverage, whereby the goal is to capture events of interest that occur in one or more target areas. In this respect, duty cycling for complete targets coverage is important. Its objective is to ensure all targets are monitored continuously by at least one sensor node, whilst other sensor nodes can be in a low power sleep state to conserve energy and to recharge their battery. To date, existing works only study the duty cycling for complete targets coverage problem in non-rechargeable WSNs where the sensor nodes have no ability to refresh their battery. Moreover, past works on energy harvesting WSNs focus on maximizing event detection probability and do not require all targets to be monitored at all times. To this end, this thesis rst addresses the duty cycling for complete targets coverage problem in energy harvesting WSNs. Specifically, it is the first to propose the Maximum Lifetime Coverage with Energy Harvesting node (MLCEH) problem. Its objective is to determine the activation schedule of sensor nodes such that network lifetime is maximal whilst ensuring all targets are monitored by at least one sensor node at all times. To address the MLCEH problem, this thesis proposes two novel solutions, called LP-MLCEH and Maximum Utility Algorithm (MUA). The first uses Linear Programming (LP), and the other relies on a greedy selection policy. Simulation results show that LP-MLCEH doubles the network lifetime obtained by a similar algorithm developed for finite battery WSNs. Moreover, MUA achieves 3/4 of the network lifetime achieved by LP-MLCEH at a fraction of LP-MLCEH's computation time. This thesis also considers a scenario where the information from sensor nodes may be staled, meaning the sink does not have an accurate knowledge of the battery level at each sensor node. To cope with this uncertainty, this thesis proposes a two stage Stochastic Programming (SP) based Uncertain Maximum Lifetime Coverage solution, called SP-UMLC, which achieves 80% of the theoretically achievable network lifetime. After that, this thesis outlines a distributed algorithm called Maximum Energy Protection (MEP) to allow a sensor node to turn itself on/off using two-hops information. It compares MEP with two distributed algorithms developed for finite battery WSNs. Results show that MEP increases network lifetime…

Subjects/Keywords: Wireless sensor network; linear program; schedule; energy harvesting; node placement

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APA (6^th Edition):

Yang, C. (2015). Coverage problems in energy harvesting wireless sensor networks. (Doctoral Dissertation). University of Wollongong. Retrieved from 0805 DISTRIBUTED COMPUTING, 0906 ELECTRICAL AND ELECTRONIC ENGINEERING ; https://ro.uow.edu.au/theses/4434

Chicago Manual of Style (16^th Edition):

Yang, Changlin. “Coverage problems in energy harvesting wireless sensor networks.” 2015. Doctoral Dissertation, University of Wollongong. Accessed December 16, 2019. 0805 DISTRIBUTED COMPUTING, 0906 ELECTRICAL AND ELECTRONIC ENGINEERING ; https://ro.uow.edu.au/theses/4434.

MLA Handbook (7^th Edition):

Yang, Changlin. “Coverage problems in energy harvesting wireless sensor networks.” 2015. Web. 16 Dec 2019.

Vancouver:

Yang C. Coverage problems in energy harvesting wireless sensor networks. [Internet] [Doctoral dissertation]. University of Wollongong; 2015. [cited 2019 Dec 16]. Available from: 0805 DISTRIBUTED COMPUTING, 0906 ELECTRICAL AND ELECTRONIC ENGINEERING ; https://ro.uow.edu.au/theses/4434.

Council of Science Editors:

Yang C. Coverage problems in energy harvesting wireless sensor networks. [Doctoral Dissertation]. University of Wollongong; 2015. Available from: 0805 DISTRIBUTED COMPUTING, 0906 ELECTRICAL AND ELECTRONIC ENGINEERING ; https://ro.uow.edu.au/theses/4434

Virginia Commonwealth University

13. Jung, Changyong. ON RELAY NODE PLACEMENT PROBLEM FOR SURVIVABLE WIRELESS SENSOR NETWORKS.

Degree: PhD, Engineering, 2013, Virginia Commonwealth University

URL: https://scholarscompass.vcu.edu/etd/570

► Wireless sensor networks are widely applied to many fields such as animal habitat monitoring, air traffic control, and health monitoring. One of the current problems… (more)

Subjects/Keywords: Wireless Sensor Networks; Relay Node Placement; Survivability.; Engineering

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APA (6^th Edition):

Jung, C. (2013). ON RELAY NODE PLACEMENT PROBLEM FOR SURVIVABLE WIRELESS SENSOR NETWORKS. (Doctoral Dissertation). Virginia Commonwealth University. Retrieved from https://scholarscompass.vcu.edu/etd/570

Chicago Manual of Style (16^th Edition):

Jung, Changyong. “ON RELAY NODE PLACEMENT PROBLEM FOR SURVIVABLE WIRELESS SENSOR NETWORKS.” 2013. Doctoral Dissertation, Virginia Commonwealth University. Accessed December 16, 2019. https://scholarscompass.vcu.edu/etd/570.

MLA Handbook (7^th Edition):

Jung, Changyong. “ON RELAY NODE PLACEMENT PROBLEM FOR SURVIVABLE WIRELESS SENSOR NETWORKS.” 2013. Web. 16 Dec 2019.

Vancouver:

Jung C. ON RELAY NODE PLACEMENT PROBLEM FOR SURVIVABLE WIRELESS SENSOR NETWORKS. [Internet] [Doctoral dissertation]. Virginia Commonwealth University; 2013. [cited 2019 Dec 16]. Available from: https://scholarscompass.vcu.edu/etd/570.

Council of Science Editors:

Jung C. ON RELAY NODE PLACEMENT PROBLEM FOR SURVIVABLE WIRELESS SENSOR NETWORKS. [Doctoral Dissertation]. Virginia Commonwealth University; 2013. Available from: https://scholarscompass.vcu.edu/etd/570

University of New South Wales

14. Oromiehie, Ebrahim. In-situ process monitoring in automated fibre placement-based manufacturing of advanced composites.

Degree: Mechanical & Manufacturing Engineering, 2017, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/59534 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48780/SOURCE02?view=true

► The automated fibre placement (AFP) offers high throughput and efficient manufacturing methods for making multi- stiffenedlaminated composites. This revolutionary technique has opened up a wide… (more)

▼ The automated fibre placement (AFP) offers high throughput and efficient manufacturing methods for making multi- stiffenedlaminated composites. This revolutionary technique has opened up a wide range of applications and newmarkets for fibre-reinforced composite materials in many industrial applications like aerospace. However, processingconditions, machine tolerances and steering of material can induce random defects within the laminate, which maycompromise the structural integrity. The presence of such defects may result in catastrophic failure of AFPmanufactured laminates, hence identifying them at the earlier stages of manufacturing is critical to ensure the qualityof final product. The objective of this thesis is to establish a reliable inspection technique for AFP to ensure thestructural integrity. An on-line monitoring technique need to be developed for in-situ health monitoring of AFPcomposites that has been a major concern of composite manufacturers.In this thesis, a novel method using optical fibre Bragg grating (FBG) sensor is implemented towards the in-situprocess monitoring of AFP. As a preliminary study, Carbon/Glass fibre reinforced polymer composite specimens withembedded sensor were made using conventional manufacturing methods and their performance were studied underdifferent loading conditions. Then, the FBGs were embedded within the AFP manufactured laminates for in-situ layupprocess monitoring and identifying misalignment defects which were artificially created between the plies.Moreover, a new sensing head was utilised to discriminate the strain and temperature effects. Finally, thecomputational approach is carried out using finite element analysis to validate the experimental results.Through a series of experimental studies it is shown that, the lay-up process conditions and misalignment defects canbe monitored successfully using FBGs via measuring the reflected wavelengths, which are related to consolidationpressure and curing temperatures. It can also be witnessed that the effects of stacking plies, recovering time andresidual strain on the measured wavelength can be measured in real time. Finally, it is demonstrated that by utilising anew FBG configuration the strain and temperature during the lay-up process can be measured simultaneously. Themeasured strain and temperature values were in the acceptable range, establishing the close agreement ofexperimental and simulation results. Advisors/Committee Members: Prof.Prusty, Gangadhara, Mechanical & Manufacturing Engineering, Faculty of Engineering, UNSW, Dr. Compston, Paul, Research School of Engineering, The Australian National University., Dr. Rajan, Ginu, School of Electrical, Computer and Telecommunications Engineering, University of Wollongong., Dr. Pearce, Garth, Mechanical & Manufacturing Engineering, Faculty of Engineering, UNSW.

Subjects/Keywords: In-situ process monitoring; Automated fibre placement; Fibre Bragg grating sensor

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APA (6^th Edition):

Oromiehie, E. (2017). In-situ process monitoring in automated fibre placement-based manufacturing of advanced composites. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/59534 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48780/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Oromiehie, Ebrahim. “In-situ process monitoring in automated fibre placement-based manufacturing of advanced composites.” 2017. Doctoral Dissertation, University of New South Wales. Accessed December 16, 2019. http://handle.unsw.edu.au/1959.4/59534 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48780/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Oromiehie, Ebrahim. “In-situ process monitoring in automated fibre placement-based manufacturing of advanced composites.” 2017. Web. 16 Dec 2019.

Vancouver:

Oromiehie E. In-situ process monitoring in automated fibre placement-based manufacturing of advanced composites. [Internet] [Doctoral dissertation]. University of New South Wales; 2017. [cited 2019 Dec 16]. Available from: http://handle.unsw.edu.au/1959.4/59534 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48780/SOURCE02?view=true.

Council of Science Editors:

Oromiehie E. In-situ process monitoring in automated fibre placement-based manufacturing of advanced composites. [Doctoral Dissertation]. University of New South Wales; 2017. Available from: http://handle.unsw.edu.au/1959.4/59534 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:48780/SOURCE02?view=true

University of Minnesota

15. Gustafson, Kali. Sparsity-Promoting Estimator Design for Acceleration Sensor Placement in Civil Structures.

Degree: MS, Civil Engineering, 2019, University of Minnesota

URL: http://hdl.handle.net/11299/206179

► The scale of civil systems makes it impossible to measure all degrees of freedom. Therefore, a limited number of measurements are leveraged to obtain a… (more)

Subjects/Keywords: Building structures; Kalman filter; Sensor placement; State estimation

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APA (6^th Edition):

Gustafson, K. (2019). Sparsity-Promoting Estimator Design for Acceleration Sensor Placement in Civil Structures. (Masters Thesis). University of Minnesota. Retrieved from http://hdl.handle.net/11299/206179

Chicago Manual of Style (16^th Edition):

Gustafson, Kali. “Sparsity-Promoting Estimator Design for Acceleration Sensor Placement in Civil Structures.” 2019. Masters Thesis, University of Minnesota. Accessed December 16, 2019. http://hdl.handle.net/11299/206179.

MLA Handbook (7^th Edition):

Gustafson, Kali. “Sparsity-Promoting Estimator Design for Acceleration Sensor Placement in Civil Structures.” 2019. Web. 16 Dec 2019.

Vancouver:

Gustafson K. Sparsity-Promoting Estimator Design for Acceleration Sensor Placement in Civil Structures. [Internet] [Masters thesis]. University of Minnesota; 2019. [cited 2019 Dec 16]. Available from: http://hdl.handle.net/11299/206179.

Council of Science Editors:

Gustafson K. Sparsity-Promoting Estimator Design for Acceleration Sensor Placement in Civil Structures. [Masters Thesis]. University of Minnesota; 2019. Available from: http://hdl.handle.net/11299/206179

Colorado State University

16. Kimbrough, Hal Reuben. Optimal sensor placement for sewer capacity risk management.

Degree: PhD, Systems Engineering, 2019, Colorado State University

URL: http://hdl.handle.net/10217/195315

► Complex linear assets, such as those found in transportation and utilities, are vital to economies, and in some cases, to public health. Wastewater collection systems… (more)

▼ Complex linear assets, such as those found in transportation and utilities, are vital to economies, and in some cases, to public health. Wastewater collection systems in the United States are vital to both. Yet effective approaches to remediating failures in these systems remains an unresolved shortfall for system operators. This shortfall is evident in the estimated 850 billion gallons of untreated sewage that escapes combined sewer pipes each year (US EPA 2004a) and the estimated 40,000 sanitary sewer overflows and 400,000 backups of untreated sewage into basements (US EPA 2001). Failures in wastewater collection systems can be prevented if they can be detected in time to apply intervention strategies such as pipe maintenance, repair, or rehabilitation. This is the essence of a risk management process. The International Council on Systems Engineering recommends that risks be prioritized as a function of severity and occurrence and that criteria be established for acceptable and unacceptable risks (INCOSE 2007). A significant impediment to applying generally accepted risk models to wastewater collection systems is the difficulty of quantifying risk likelihoods. These difficulties stem from the size and complexity of the systems, the lack of data and statistics characterizing the distribution of risk, the high cost of evaluating even a small number of components, and the lack of methods to quantify risk. This research investigates new methods to assess risk likelihood of failure through a novel approach to placement of sensors in wastewater collection systems. The hypothesis is that iterative movement of water level sensors, directed by a specialized metaheuristic search technique, can improve the efficiency of discovering locations of unacceptable risk. An agent-based simulation is constructed to validate the performance of this technique along with testing its sensitivity to varying environments. The results demonstrated that a multi-phase search strategy, with a varying number of sensors deployed in each phase, could efficiently discover locations of unacceptable risk that could be managed via a perpetual monitoring, analysis, and remediation process. A number of promising well-defined future research opportunities also emerged from the performance of this research. Advisors/Committee Members: Duff, William (advisor), Grigg, Neil (advisor), Labadie, John (committee member), Ham, Jay (committee member).

Subjects/Keywords: FMEA; Risk management; Wastewater; Metaheuristics; Agent-based models; Sensor placement

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APA (6^th Edition):

Kimbrough, H. R. (2019). Optimal sensor placement for sewer capacity risk management. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/195315

Chicago Manual of Style (16^th Edition):

Kimbrough, Hal Reuben. “Optimal sensor placement for sewer capacity risk management.” 2019. Doctoral Dissertation, Colorado State University. Accessed December 16, 2019. http://hdl.handle.net/10217/195315.

MLA Handbook (7^th Edition):

Kimbrough, Hal Reuben. “Optimal sensor placement for sewer capacity risk management.” 2019. Web. 16 Dec 2019.

Vancouver:

Kimbrough HR. Optimal sensor placement for sewer capacity risk management. [Internet] [Doctoral dissertation]. Colorado State University; 2019. [cited 2019 Dec 16]. Available from: http://hdl.handle.net/10217/195315.

Council of Science Editors:

Kimbrough HR. Optimal sensor placement for sewer capacity risk management. [Doctoral Dissertation]. Colorado State University; 2019. Available from: http://hdl.handle.net/10217/195315

EPFL

17. Ranieri, Juri. Sensing the real world: inverse problems, sparsity and sensor placement.

Degree: 2014, EPFL

URL: http://infoscience.epfl.ch/record/201739

► A sensor is a device that detects or measures a physical property and records, indicates, or otherwise responds to it. In other words, a sensor… (more)

▼ A sensor is a device that detects or measures a physical property and records, indicates, or otherwise responds to it. In other words, a sensor allows us to interact with the surrounding environment, by measuring qualitatively or quantitatively a given phenomena. Biological evolution provided every living entity with a set of sensors to ease the survival to daily challenges. In addition to the biological sensors, humans developed and designed “artificial” sensors with the aim of improving our capacity of sensing the real world. Today, thanks to technological developments, sensors are ubiquitous and thus, we measure an exponentially growing amount of data. Here is the challenge—how do we process and use this data? Nowadays, it is common to design real-world sensing architectures that use the measured data to estimate certain parameters of the measured physical field. This type of problems are known in mathematics as inverse problems and finding their solution is challenging. In fact, we estimate a set of parameters of a physical field with possibly infinite degrees of freedom with only a few measurements, that are most likely corrupted by noise. Therefore, we would like to design algorithms to solve the given inverse problem, while ensuring the existence of the solution, its uniqueness and its robustness to the measurement noise. In this thesis, we tackle different inverse problems, all inspired by real-world applications. First, we propose a new regularization technique for linear inverse problems based on the sensor placement optimization of the sensor network collecting the data. We propose Frame- Sense, a greedy algorithm inspired by frame theory that finds a near-optimal sensor placement with respect to the reconstruction error of the inverse problem solution in polynomial time. We substantiate our theoretical findings with numerical simulations showing that our method improves the state of the art. In particular, we show significant improvements on two realworld applications: the thermal monitoring of many-core processors and the adaptive sampling scheduling of environmental sensor networks. Second, we introduce the dual of the sensor placement problem, namely the source placement problem. In this case, instead of regularizing the inverse problem, we enable a precise control of the physical field by means of a forward problem. For this problem, we propose a near-optimal algorithm for the noiseless case, that is when we know exactly the current state of the physical field. Third, we consider a family of physical phenomena that can be modeled by means of graphs, where the nodes represent a set of entities and the edges model the transmission delay of an information between the entities. Examples of this phenomena are the spreading of a virus within the population of a given region or the spreading of a rumor on a social network. In this scenario, we identify two new key problems: the source placement and vaccination. For the former, we would like to find a set of sources such that the spreading of the information… Advisors/Committee Members: Vetterli, Martin, Chebira, Amina.

Subjects/Keywords: inverse problems; regularization methods; sensor placement; source placement; vaccination; diffusion equation; sparse signals; atmosphericemission; phase retrieval; turnpike problem

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APA (6^th Edition):

Ranieri, J. (2014). Sensing the real world: inverse problems, sparsity and sensor placement. (Thesis). EPFL. Retrieved from http://infoscience.epfl.ch/record/201739

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ranieri, Juri. “Sensing the real world: inverse problems, sparsity and sensor placement.” 2014. Thesis, EPFL. Accessed December 16, 2019. http://infoscience.epfl.ch/record/201739.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ranieri, Juri. “Sensing the real world: inverse problems, sparsity and sensor placement.” 2014. Web. 16 Dec 2019.

Vancouver:

Ranieri J. Sensing the real world: inverse problems, sparsity and sensor placement. [Internet] [Thesis]. EPFL; 2014. [cited 2019 Dec 16]. Available from: http://infoscience.epfl.ch/record/201739.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ranieri J. Sensing the real world: inverse problems, sparsity and sensor placement. [Thesis]. EPFL; 2014. Available from: http://infoscience.epfl.ch/record/201739

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

18. Kasper, Kévin. Apprentissage d'estimateurs sans modèle avec peu de mesures - Application à la mécanique des fluides : Machine learning of model-less estimators using a limited amount of sensors - Applied to fluid flows.

Degree: Docteur es, Traitement du signal et des images, 2016, Paris Saclay

URL: http://www.theses.fr/2016SACLN029

►

Cette thèse traite de techniques promouvant la parcimonie pour déterminer des estimateurs performants n’utilisant les mesures que d’un très faible nombre de capteurs. La position… (more)

▼

Cette thèse traite de techniques promouvant la parcimonie pour déterminer des estimateurs performants n’utilisant les mesures que d’un très faible nombre de capteurs. La position de ces capteurs est cruciale pour de bonnes performances et doit être déterminée avec soin. Les méthodes proposées dans ce travail reposent sur l’utilisation d’une base d’apprentissage du champ d’intérêt considéré et ne nécessitent pas de modèle dynamique du système physique. Les éléments de cette base d’apprentissage sont obtenus à l’aide de mesures effectuées sur le système réel ou par simulation numérique. Se basant uniquement sur ces éléments d’apprentissage, et non sur des modèles dynamiques, les approches proposées sont générales et applicables à des systèmes issus de domaines variés.Les approches proposées sont illustrées sur le cas d’un écoulement fluide 2-D autour d’un obstacle cylindrique. Le champ de pression dans un voisinage du cylindre doit être estimé à partir de quelques mesures de pression effectuées en paroi. En utilisant des positions préalablement fixées des capteurs, des estimateurs adaptés à ces positions sont proposés. Ces estimateurs tirent pleinement parti du très faible nombre de mesures en manipulant des représentations creuses et en exploitant la notion de classes. Des situations où les mesures ne portent pas sur le champ d’intérêt à estimer peuvent également être traitées. Un algorithme de placement de capteurs est proposé et permet une amélioration significative des performances des estimateurs par rapport à des capteurs placés a priori.Plusieurs extensions sont discutées : utilisation de mesures passées, utilisation de commandes passées, estimation du champ d’une quantité d’intérêt reliée de façon non linéaire aux mesures, estimation d’un champ à valeurs vectorielles, etc.

This thesis deals with sparsity promoting techniques in order to produce efficient estimators relying only on a small amount of measurements given by sensors. These sensor locations are crucial to the estimators and have to be chosen meticulously. The proposed methods do not require dynamical models and are instead based on a collection of snapshots of the field of interest. This learning sequence can be acquired through measurements on the real system or through numerical simulation. By relying only on a learning sequence, and not on dynamical models, the proposed methods become general and applicable to a variety of systems.These techniques are illustrated on the 2-D fluid flow around a cylindrical body. The pressure field in the neighbourhood of the cylinder has to be estimated from a limited amount of surface pressure measurements. For a given arrangement of the sensors, efficient estimators suited to these locations are proposed. These estimators fully harness the information given by the limited amount of sensors by manipulating sparse representations and classes. Cases where the measurements are no longer made on the field to be estimated can also be considered. A sensor placement algorithm is proposed in order to improve the…

Advisors/Committee Members: Abou-Kandil, Hisham (thesis director).

Subjects/Keywords: Estimation sans modèle; Parcimonie; Placement de Capteurs; Apprentissage; Classification; Model-Less estimators; Sparsity; Sensor Placement; Machine learning; Classification

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APA (6^th Edition):

Kasper, K. (2016). Apprentissage d'estimateurs sans modèle avec peu de mesures - Application à la mécanique des fluides : Machine learning of model-less estimators using a limited amount of sensors - Applied to fluid flows. (Doctoral Dissertation). Paris Saclay. Retrieved from http://www.theses.fr/2016SACLN029

Chicago Manual of Style (16^th Edition):

Kasper, Kévin. “Apprentissage d'estimateurs sans modèle avec peu de mesures - Application à la mécanique des fluides : Machine learning of model-less estimators using a limited amount of sensors - Applied to fluid flows.” 2016. Doctoral Dissertation, Paris Saclay. Accessed December 16, 2019. http://www.theses.fr/2016SACLN029.

MLA Handbook (7^th Edition):

Kasper, Kévin. “Apprentissage d'estimateurs sans modèle avec peu de mesures - Application à la mécanique des fluides : Machine learning of model-less estimators using a limited amount of sensors - Applied to fluid flows.” 2016. Web. 16 Dec 2019.

Vancouver:

Kasper K. Apprentissage d'estimateurs sans modèle avec peu de mesures - Application à la mécanique des fluides : Machine learning of model-less estimators using a limited amount of sensors - Applied to fluid flows. [Internet] [Doctoral dissertation]. Paris Saclay; 2016. [cited 2019 Dec 16]. Available from: http://www.theses.fr/2016SACLN029.

Council of Science Editors:

Kasper K. Apprentissage d'estimateurs sans modèle avec peu de mesures - Application à la mécanique des fluides : Machine learning of model-less estimators using a limited amount of sensors - Applied to fluid flows. [Doctoral Dissertation]. Paris Saclay; 2016. Available from: http://www.theses.fr/2016SACLN029

Utah State University

19. Shekaramiz, Mohammad. Sparse Signal Recovery Based on Compressive Sensing and Exploration Using Multiple Mobile Sensors.

Degree: PhD, Electrical and Computer Engineering, 2018, Utah State University

URL: https://digitalcommons.usu.edu/etd/7384

► The work in this dissertation is focused on two areas within the general discipline of statistical signal processing. First, several new algorithms are developed… (more)

▼ The work in this dissertation is focused on two areas within the general discipline of statistical signal processing. First, several new algorithms are developed and exhaustively tested for solving the inverse problem of compressive sensing (CS). CS is a recently developed sub-sampling technique for signal acquisition and reconstruction which is more efficient than the traditional Nyquist sampling method. It provides the possibility of compressed data acquisition approaches to directly acquire just the important information of the signal of interest. Many natural signals are sparse or compressible in some domain such as pixel domain of images, time, frequency and so forth. The notion of compressibility or sparsity here means that many coefficients of the signal of interest are either zero or of low amplitude, in some domain, whereas some are dominating coefficients. Therefore, we may not need to take many direct or indirect samples from the signal or phenomenon to be able to capture the important information of the signal. As a simple example, one can think of a system of linear equations with N unknowns. Traditional methods suggest solving N linearly independent equations to solve for the unknowns. However, if many of the variables are known to be zero or of low amplitude, then intuitively speaking, there will be no need to have N equations. Unfortunately, in many real-world problems, the number of non-zero (effective) variables are unknown. In these cases, CS is capable of solving for the unknowns in an efficient way. In other words, it enables us to collect the important information of the sparse signal with low number of measurements. Then, considering the fact that the signal is sparse, extracting the important information of the signal is the challenge that needs to be addressed. Since most of the existing recovery algorithms in this area need some prior knowledge or parameter tuning, their application to real-world problems to achieve a good performance is difficult. In this dissertation, several new CS algorithms are proposed for the recovery of sparse signals. The proposed algorithms mostly do not require any prior knowledge on the signal or its structure. In fact, these algorithms can learn the underlying structure of the signal based on the collected measurements and successfully reconstruct the signal, with high probability. The other merit of the proposed algorithms is that they are generally flexible in incorporating any prior knowledge on the noise, sparisty level, and so on. The second part of this study is devoted to deployment of mobile sensors in circumstances that the number of sensors to sample the entire region is inadequate. Therefore, where to deploy the sensors, to both explore new regions while refining knowledge in aleady visited areas is of high importance. Here, a new framework is proposed to decide on the trajectories of sensors as they collect the measurements. The proposed framework has two main stages. The first stage performs interpolation/extrapolation to estimate the… Advisors/Committee Members: Todd K. Moon, Scott E. Budge, Mark E. Fels, ;.

Subjects/Keywords: Compressive sensing; sparse recovery; clustered pattern; exploration; mobile sensors; sensor placement; Electrical and Computer Engineering

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APA (6^th Edition):

Shekaramiz, M. (2018). Sparse Signal Recovery Based on Compressive Sensing and Exploration Using Multiple Mobile Sensors. (Doctoral Dissertation). Utah State University. Retrieved from https://digitalcommons.usu.edu/etd/7384

Chicago Manual of Style (16^th Edition):

Shekaramiz, Mohammad. “Sparse Signal Recovery Based on Compressive Sensing and Exploration Using Multiple Mobile Sensors.” 2018. Doctoral Dissertation, Utah State University. Accessed December 16, 2019. https://digitalcommons.usu.edu/etd/7384.

MLA Handbook (7^th Edition):

Shekaramiz, Mohammad. “Sparse Signal Recovery Based on Compressive Sensing and Exploration Using Multiple Mobile Sensors.” 2018. Web. 16 Dec 2019.

Vancouver:

Shekaramiz M. Sparse Signal Recovery Based on Compressive Sensing and Exploration Using Multiple Mobile Sensors. [Internet] [Doctoral dissertation]. Utah State University; 2018. [cited 2019 Dec 16]. Available from: https://digitalcommons.usu.edu/etd/7384.

Council of Science Editors:

Shekaramiz M. Sparse Signal Recovery Based on Compressive Sensing and Exploration Using Multiple Mobile Sensors. [Doctoral Dissertation]. Utah State University; 2018. Available from: https://digitalcommons.usu.edu/etd/7384

Wayne State University

20. King, Brady. Optimal Port Placement And Automated Robotic Positioning For Instrumented Laparoscopic Biosensors.

Degree: PhD, Electrical and Computer Engineering, 2011, Wayne State University

URL: https://digitalcommons.wayne.edu/oa_dissertations/214

► OPTIMAL SURGICAL PORT PLACEMENT AND AUTOMATED ROBOTIC POSITIONING FOR RAMAN AND OTHER BIOSENSORS by BRADY KING January 2011 Advisors: Dr. Abhilash Pandya, Dr. Darin… (more)

▼ OPTIMAL SURGICAL PORT PLACEMENT AND AUTOMATED ROBOTIC POSITIONING FOR RAMAN AND OTHER BIOSENSORS by BRADY KING January 2011 Advisors: Dr. Abhilash Pandya, Dr. Darin Ellis, Dr. Le Yi Wang, and Dr. Greg Auner Major: Computer Engineering Degree: Doctor of Philosophy Medical biosensors can provide new information during minimally invasive and robotic surgical procedures. However, these biosensors have significant physical limitations that make it difficult to find optimal port locations and place them in vivo. This dissertation explores the application of robotics and virtual/augmented reality to biosensors to enable their optimal use in vivo. In the first study, human performance in the task of port placement was evaluated to determine if computer intervention and assistance was needed. Using a virtual surgical environment, we present a number of targets on one or more tissue surfaces. A human factors study was conducted with 20 subjects that analyzed the subject's placement of a port with the goal of scanning as many targets as possible with a biosensor. The study showed performance to be less than optimal with significant degradation in several specific scenarios. In the second study, an automated intelligent port placement system for biosensor use was developed. Patient data was displayed in an environment in which a surgeon could indicate areas of interest. The system utilized biosensor physical limitations and provided the best port location from which the biosensor could reach the targets on a collision-free path. The study showed that it is possible to find an optimal port location for proper biosensor data capture. In the final study, a surgical robot was investigated for potential use in holding and positioning a biosensor in vivo. A full control suite was developed for an AESOP 1000, enabling the positioning of the biosensor without hand manipulation. It was found that the robot lacks the accuracy needed for proper biosensor utilization. Specific causes for the inaccuracies were identified for analysis and consideration in future robotic platforms. Overall, the results show that the application of medical robotics and virtual/augmented reality is able to overcome of the significant physical limitations inherent to biosensor design that currently limit their use in surgery. We conjecture that a complete system, with a more accurate robot, could be used in vivo. We believe that results taken from the individual studies will result in improvements to pre-operative port placement and robotic design. Advisors/Committee Members: Abhilash Pandya.

Subjects/Keywords: Image-Guided Surgery; Medical Robotics; Port Placement; Raman Spectroscopy; Sensor Integration; Computer Engineering; Robotics; Surgery

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

King, B. (2011). Optimal Port Placement And Automated Robotic Positioning For Instrumented Laparoscopic Biosensors. (Doctoral Dissertation). Wayne State University. Retrieved from https://digitalcommons.wayne.edu/oa_dissertations/214

Chicago Manual of Style (16^th Edition):

King, Brady. “Optimal Port Placement And Automated Robotic Positioning For Instrumented Laparoscopic Biosensors.” 2011. Doctoral Dissertation, Wayne State University. Accessed December 16, 2019. https://digitalcommons.wayne.edu/oa_dissertations/214.

MLA Handbook (7^th Edition):

King, Brady. “Optimal Port Placement And Automated Robotic Positioning For Instrumented Laparoscopic Biosensors.” 2011. Web. 16 Dec 2019.

Vancouver:

King B. Optimal Port Placement And Automated Robotic Positioning For Instrumented Laparoscopic Biosensors. [Internet] [Doctoral dissertation]. Wayne State University; 2011. [cited 2019 Dec 16]. Available from: https://digitalcommons.wayne.edu/oa_dissertations/214.

Council of Science Editors:

King B. Optimal Port Placement And Automated Robotic Positioning For Instrumented Laparoscopic Biosensors. [Doctoral Dissertation]. Wayne State University; 2011. Available from: https://digitalcommons.wayne.edu/oa_dissertations/214

21. Tsoumanis, Georgios. Energy consumption optimization in wireless sensor networks.

Degree: 2018, Ionian University; Ιόνιο Πανεπιστήμιο

URL: http://hdl.handle.net/10442/hedi/44185

► Prolonging a wireless sensor network’s lifetime is closely related to energy consump-tion and particularly to the energy hole problem, where sensor nodes close to the… (more)

▼ Prolonging a wireless sensor network’s lifetime is closely related to energy consump-tion and particularly to the energy hole problem, where sensor nodes close to the sink node consume a considerable amount of their energy for relaying purposes. In order to tackle the energy hole problem’s eects, this thesis proposes two approaches that counter the problem from two perspectives: (i) the minimization of the energy consumption by approaching the sink placement problem as a k-median problem and (ii) the prolongation of the network’s lifetime by recharging its sensor nodes.In the rst approach, an analytical model for analyzing the available energy in the network is proposed. The next step is to analytically model the overall energy consumption as a k-median facility location problem, its solution corresponding to the location of k sinks in the network. As analytically shown, when k sinks are placed according to the solution of the previous facility location problem, then the overall energy consumption is minimized, resulting in a higher energy-saving system. Thus, the saved energy can be further utilized, e.g., to extend the network’s lifetime and support modern replenishing techniques such as energy harvesting and battery recharging. Simulation results validate the analytical model that is the basis of the analysis and conrm the results with respect to the available energy in the network. In particular, signicant energy savings are observed when the analytical results are applied, thus resulting in better energy utilization and subsequent network lifetime increment.The second approach is focused on two proposed recharging policies. The rst one is a simple recharging policy that permits a mobile recharger, initially stationed at the sink node, to move around and replenish any node’s exhausted battery when a certain recharging threshold is violated. This policy, as well as the second pro-posed recharging policy (i.e., the enhanced recharging policy), refer to on-demand recharging policies which base their operation on local information, allowing the mobile recharger to move – upon request – to a node of reduced energy level and re-plenish its battery. When under the enhanced recharging policy and after completing the latter replenishment, the mobile recharger continues operating in a hop-by-hop manner to the neighbor nodes of the lowest energy level, thus replenishing their batteries too. It is shown that the minimization of the recharging distance covered by the mobile recharger is a facility location problem, and particularly an 1-median one. Simulation results, regarding the simple recharging policy, investigate various aspects of it related to the recharging threshold and the level of the energy left in the network nodes’ batteries. In addition, it is shown that when the sink’s location is set to the solution of the particular facility location problem, then the recharging distance is minimized irrespectively of the recharging threshold. As for the enhanced recharging policy’s simulation results, its eectiveness is…

Subjects/Keywords: Δίκτυα αισθητήρων; Ασύρματα δίκτυα; Τοποθέτηση υπηρεσίας; Wireless sensor networks; Facility location; Sink placement

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APA (6^th Edition):

Tsoumanis, G. (2018). Energy consumption optimization in wireless sensor networks. (Thesis). Ionian University; Ιόνιο Πανεπιστήμιο. Retrieved from http://hdl.handle.net/10442/hedi/44185

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tsoumanis, Georgios. “Energy consumption optimization in wireless sensor networks.” 2018. Thesis, Ionian University; Ιόνιο Πανεπιστήμιο. Accessed December 16, 2019. http://hdl.handle.net/10442/hedi/44185.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tsoumanis, Georgios. “Energy consumption optimization in wireless sensor networks.” 2018. Web. 16 Dec 2019.

Vancouver:

Tsoumanis G. Energy consumption optimization in wireless sensor networks. [Internet] [Thesis]. Ionian University; Ιόνιο Πανεπιστήμιο; 2018. [cited 2019 Dec 16]. Available from: http://hdl.handle.net/10442/hedi/44185.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tsoumanis G. Energy consumption optimization in wireless sensor networks. [Thesis]. Ionian University; Ιόνιο Πανεπιστήμιο; 2018. Available from: http://hdl.handle.net/10442/hedi/44185

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Queens University

22. Al-Salih, Waleed. Mobile Data Collectors in Wireless Sensor Networks .

Degree: Computing, 2009, Queens University

URL: http://hdl.handle.net/1974/1815

► Recent advances in wireless and sensing technologies have enabled the deployment of large scale Wireless Sensor Networks (WSNs) which have a wide range of scientific… (more)

Subjects/Keywords: Wireless sensor network; Mobile; Placement; Routing

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APA (6^th Edition):

Al-Salih, W. (2009). Mobile Data Collectors in Wireless Sensor Networks . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/1815

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Al-Salih, Waleed. “Mobile Data Collectors in Wireless Sensor Networks .” 2009. Thesis, Queens University. Accessed December 16, 2019. http://hdl.handle.net/1974/1815.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Al-Salih, Waleed. “Mobile Data Collectors in Wireless Sensor Networks .” 2009. Web. 16 Dec 2019.

Vancouver:

Al-Salih W. Mobile Data Collectors in Wireless Sensor Networks . [Internet] [Thesis]. Queens University; 2009. [cited 2019 Dec 16]. Available from: http://hdl.handle.net/1974/1815.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Al-Salih W. Mobile Data Collectors in Wireless Sensor Networks . [Thesis]. Queens University; 2009. Available from: http://hdl.handle.net/1974/1815

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of South Florida

23. Perez, Alfredo Jose. An Architecture for Global Ubiquitous Sensing.

Degree: 2011, University of South Florida

URL: https://scholarcommons.usf.edu/etd/3276

► A new class of wireless sensor networks has recently appeared due to the pervasiness of cellular phones with embedded sensors, mobile Internet connectivity, and location… (more)

Subjects/Keywords: Cellular Networks; Distributed Systems; Location-based Services; Mobile Sensor Networks; Sensor Placement; American Studies; Arts and Humanities; Computer Sciences

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APA (6^th Edition):

Perez, A. J. (2011). An Architecture for Global Ubiquitous Sensing. (Thesis). University of South Florida. Retrieved from https://scholarcommons.usf.edu/etd/3276

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Perez, Alfredo Jose. “An Architecture for Global Ubiquitous Sensing.” 2011. Thesis, University of South Florida. Accessed December 16, 2019. https://scholarcommons.usf.edu/etd/3276.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Perez, Alfredo Jose. “An Architecture for Global Ubiquitous Sensing.” 2011. Web. 16 Dec 2019.

Vancouver:

Perez AJ. An Architecture for Global Ubiquitous Sensing. [Internet] [Thesis]. University of South Florida; 2011. [cited 2019 Dec 16]. Available from: https://scholarcommons.usf.edu/etd/3276.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Perez AJ. An Architecture for Global Ubiquitous Sensing. [Thesis]. University of South Florida; 2011. Available from: https://scholarcommons.usf.edu/etd/3276

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

24. Maugan, Fabien. Conception robuste de structure spatiale en présence de méconnaissances de modèle : Robust design of a spacecraft structure under lack of knowledge.

Degree: Docteur es, Mecanique des solides, genie mecanique, productique, transport et genie civil, 2017, Bourgogne Franche-Comté

URL: http://www.theses.fr/2017UBFCD013

►

Les travaux présentés dans cette thèse visent à apporter des outils d’aide à la décision à partir de modèles prenant en compte une représentation Info-Gap… (more)

Subjects/Keywords: Placement de capteurs; Notching; Robustesse; Info-Gap; Incertitudes; Méconnaissances de modèle; Sensor placement; Notching; Robustness; Info-Gap; Uncertainties; Lake of knowledge; 621.8

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APA (6^th Edition):

Maugan, F. (2017). Conception robuste de structure spatiale en présence de méconnaissances de modèle : Robust design of a spacecraft structure under lack of knowledge. (Doctoral Dissertation). Bourgogne Franche-Comté. Retrieved from http://www.theses.fr/2017UBFCD013

Chicago Manual of Style (16^th Edition):

Maugan, Fabien. “Conception robuste de structure spatiale en présence de méconnaissances de modèle : Robust design of a spacecraft structure under lack of knowledge.” 2017. Doctoral Dissertation, Bourgogne Franche-Comté. Accessed December 16, 2019. http://www.theses.fr/2017UBFCD013.

MLA Handbook (7^th Edition):

Maugan, Fabien. “Conception robuste de structure spatiale en présence de méconnaissances de modèle : Robust design of a spacecraft structure under lack of knowledge.” 2017. Web. 16 Dec 2019.

Vancouver:

Maugan F. Conception robuste de structure spatiale en présence de méconnaissances de modèle : Robust design of a spacecraft structure under lack of knowledge. [Internet] [Doctoral dissertation]. Bourgogne Franche-Comté; 2017. [cited 2019 Dec 16]. Available from: http://www.theses.fr/2017UBFCD013.

Council of Science Editors:

Maugan F. Conception robuste de structure spatiale en présence de méconnaissances de modèle : Robust design of a spacecraft structure under lack of knowledge. [Doctoral Dissertation]. Bourgogne Franche-Comté; 2017. Available from: http://www.theses.fr/2017UBFCD013

25. Génevé, Lionel. Système de déploiement d'un robot mobile autonome basé sur des balises : Beacon-based deployement system for an autonomous mobile robot.

Degree: Docteur es, Signal, image, automatique et robotique (SIAR), 2017, Université de Strasbourg

URL: http://www.theses.fr/2017STRAD024

►

Cette thèse s’inscrit dans le cadre d’un projet visant à développer un robot mobile autonome capable de réaliser des tâches spécifiques dans une zone préalablement… (more)

Subjects/Keywords: Robotique mobile; Localisation; SLAM; Placement optimal de capteurs; Balises radiofréquence; Mesures de distance; Mobile robotics; Localization; SLAM; Optimal sensor placement; Radiofrequency beacons; Range-only measurements; 629.89

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APA (6^th Edition):

Génevé, L. (2017). Système de déploiement d'un robot mobile autonome basé sur des balises : Beacon-based deployement system for an autonomous mobile robot. (Doctoral Dissertation). Université de Strasbourg. Retrieved from http://www.theses.fr/2017STRAD024

Chicago Manual of Style (16^th Edition):

Génevé, Lionel. “Système de déploiement d'un robot mobile autonome basé sur des balises : Beacon-based deployement system for an autonomous mobile robot.” 2017. Doctoral Dissertation, Université de Strasbourg. Accessed December 16, 2019. http://www.theses.fr/2017STRAD024.

MLA Handbook (7^th Edition):

Génevé, Lionel. “Système de déploiement d'un robot mobile autonome basé sur des balises : Beacon-based deployement system for an autonomous mobile robot.” 2017. Web. 16 Dec 2019.

Vancouver:

Génevé L. Système de déploiement d'un robot mobile autonome basé sur des balises : Beacon-based deployement system for an autonomous mobile robot. [Internet] [Doctoral dissertation]. Université de Strasbourg; 2017. [cited 2019 Dec 16]. Available from: http://www.theses.fr/2017STRAD024.

Council of Science Editors:

Génevé L. Système de déploiement d'un robot mobile autonome basé sur des balises : Beacon-based deployement system for an autonomous mobile robot. [Doctoral Dissertation]. Université de Strasbourg; 2017. Available from: http://www.theses.fr/2017STRAD024

University of Kentucky

26. Schal, Stacey L. WATER QUALITY SENSOR PLACEMENT GUIDANCE FOR SMALL WATER DISTRIBUTION SYSTEMS.

Degree: 2013, University of Kentucky

URL: http://uknowledge.uky.edu/ce_etds/13

► Water distribution systems are vulnerable to intentional, along with accidental, contamination of the water supply. Contamination warning systems (CWS) are strategies to lessen the effects… (more)

Subjects/Keywords: Water Quality Monitoring; Contamination Warning Systems; Water Security Monitoring; Sensor Placement Guidance; Model Database; Civil Engineering; Hydraulic Engineering

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APA (6^th Edition):

Schal, S. L. (2013). WATER QUALITY SENSOR PLACEMENT GUIDANCE FOR SMALL WATER DISTRIBUTION SYSTEMS. (Masters Thesis). University of Kentucky. Retrieved from http://uknowledge.uky.edu/ce_etds/13

Chicago Manual of Style (16^th Edition):

Schal, Stacey L. “WATER QUALITY SENSOR PLACEMENT GUIDANCE FOR SMALL WATER DISTRIBUTION SYSTEMS.” 2013. Masters Thesis, University of Kentucky. Accessed December 16, 2019. http://uknowledge.uky.edu/ce_etds/13.

MLA Handbook (7^th Edition):

Schal, Stacey L. “WATER QUALITY SENSOR PLACEMENT GUIDANCE FOR SMALL WATER DISTRIBUTION SYSTEMS.” 2013. Web. 16 Dec 2019.

Vancouver:

Schal SL. WATER QUALITY SENSOR PLACEMENT GUIDANCE FOR SMALL WATER DISTRIBUTION SYSTEMS. [Internet] [Masters thesis]. University of Kentucky; 2013. [cited 2019 Dec 16]. Available from: http://uknowledge.uky.edu/ce_etds/13.

Council of Science Editors:

Schal SL. WATER QUALITY SENSOR PLACEMENT GUIDANCE FOR SMALL WATER DISTRIBUTION SYSTEMS. [Masters Thesis]. University of Kentucky; 2013. Available from: http://uknowledge.uky.edu/ce_etds/13

University of Windsor

27. Kamal, K. Raiyan. Ant Colony Optimization for Jointly Solving Relay Node Placement and Trajectory Calculation in Hierarchical Wireless Sensor Networks.

Degree: MS, Computer Science, 2014, University of Windsor

URL: http://scholar.uwindsor.ca/etd/5054

► Given the locations of the Sensor Nodes in a Wireless Sensor Networks (WSN), finding the minimum number of Relays required and their locations such… (more)

Subjects/Keywords: Applied sciences; Ant colony optimization; Optimization; Relay node placement; Travelingsalesman problem; Traveling salesman problem with neighborhood; Wireless sensor networks; Computer Sciences

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APA (6^th Edition):

Kamal, K. R. (2014). Ant Colony Optimization for Jointly Solving Relay Node Placement and Trajectory Calculation in Hierarchical Wireless Sensor Networks. (Masters Thesis). University of Windsor. Retrieved from http://scholar.uwindsor.ca/etd/5054

Chicago Manual of Style (16^th Edition):

Kamal, K Raiyan. “Ant Colony Optimization for Jointly Solving Relay Node Placement and Trajectory Calculation in Hierarchical Wireless Sensor Networks.” 2014. Masters Thesis, University of Windsor. Accessed December 16, 2019. http://scholar.uwindsor.ca/etd/5054.

MLA Handbook (7^th Edition):

Kamal, K Raiyan. “Ant Colony Optimization for Jointly Solving Relay Node Placement and Trajectory Calculation in Hierarchical Wireless Sensor Networks.” 2014. Web. 16 Dec 2019.

Vancouver:

Kamal KR. Ant Colony Optimization for Jointly Solving Relay Node Placement and Trajectory Calculation in Hierarchical Wireless Sensor Networks. [Internet] [Masters thesis]. University of Windsor; 2014. [cited 2019 Dec 16]. Available from: http://scholar.uwindsor.ca/etd/5054.

Council of Science Editors:

Kamal KR. Ant Colony Optimization for Jointly Solving Relay Node Placement and Trajectory Calculation in Hierarchical Wireless Sensor Networks. [Masters Thesis]. University of Windsor; 2014. Available from: http://scholar.uwindsor.ca/etd/5054

28. Τζιρίτας, Νικόλαος. Algorithms and system - level support for agent placement and migration in wireless sensor networks.

Degree: 2011, University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας

URL: http://hdl.handle.net/10442/hedi/25160

► Wireless sensor systems have drawn much attention from a considerable part of scientific community during the last years. The advances in this field range from… (more)

▼ Wireless sensor systems have drawn much attention from a considerable part of scientific community during the last years. The advances in this field range from the design of battery-powered embedded nodes to the development of software (i.e. operating system, middleware, etc) especially designed to run on such resource-constrained devices. One of the most challenging parts for both hardware and software oriented work is to maximize the lifetime of such nodes. This thesis focuses on the design and implementation of mobile code placement and migration algorithms for distributed applications in order to reduce the amount of application-level communication performed over the network. Since the largest part of a node’s energy expenditure is attributed to the wireless communication (not code execution), reducing the energy consumption becomes of paramount importance, leading in that way to an increased system lifetime. In the sequel, we give a brief overview of the application model, the algorithms and the middleware designed and implemented in the context of this thesis. The model adopted in this work is inspired by the POBICOS [91] platform, where the application is organized as a set of software entities (agents) that communicate with each other to implement the desired functionality. An agent can be ―non-generic? or ―generic?. Non-generic agents use special resources of a node, e.g. a sensor measuring a physical quantity or an actuator controlling a device or function. On the contrary, generic agents perform computational tasks and decision making at a higher level, without relying on special resources. Chapter 1 introduces the agent migration problem stated as follows: given an application that is deployed in a sensor network, perform generic agent migrations in order to reduce the data exchanged over the network due to the application-level communication between agents. We propose fully distributed algorithms that migrate an agent towards its center of gravity (in terms of communication load), thereby reducing the network cost. Also, two protocols are presented for handling the case of nodes with storage constraints (for hosting agents). iv Chapter 2 examines the same (above) problem, with the difference that it considers migrations of agent groups instead of single agent migrations. The algorithms in question deal with co-located agents that are ―mutually dependent?, which in the case of the simpler algorithms may hinder migration, leading to noticeably inferior placements. Chapter 3 discusses the competitiveness of the aforementioned algorithms versus the optimal algorithm. Also, it presents an enhancement of the group migration algorithms in order for them to produce an optimal agent placement (in terms of the network cost incurred by the application). It should be stressed that this enhancement guarantees optimality only if nodes do not have storage constraints, else the problem is NP-complete. Chapter 4 proposes fully distributed algorithms for the problem of generic agent migrations for resource-constrained…

Subjects/Keywords: Κατανεμημένα συστήματα; Αλγόριθμοι τοποθέτησης; Αλγόριθμοι μετακίνησης; Ασύρματα δίκτυα αισθητήρων; Distributed systems; Placement algorithms; Migration algorithms; Wireless sensor networks

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Τζιρίτας, . �. (2011). Algorithms and system - level support for agent placement and migration in wireless sensor networks. (Thesis). University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας. Retrieved from http://hdl.handle.net/10442/hedi/25160

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Τζιρίτας, Νικόλαος. “Algorithms and system - level support for agent placement and migration in wireless sensor networks.” 2011. Thesis, University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας. Accessed December 16, 2019. http://hdl.handle.net/10442/hedi/25160.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Τζιρίτας, Νικόλαος. “Algorithms and system - level support for agent placement and migration in wireless sensor networks.” 2011. Web. 16 Dec 2019.

Vancouver:

Τζιρίτας �. Algorithms and system - level support for agent placement and migration in wireless sensor networks. [Internet] [Thesis]. University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας; 2011. [cited 2019 Dec 16]. Available from: http://hdl.handle.net/10442/hedi/25160.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Τζιρίτας �. Algorithms and system - level support for agent placement and migration in wireless sensor networks. [Thesis]. University of Thessaly (UTH); Πανεπιστήμιο Θεσσαλίας; 2011. Available from: http://hdl.handle.net/10442/hedi/25160

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

29. Tiberg, Jesper. An evaluation of algorithms for real-time strategic placement of sensors.

Degree: Humanities and Informatics, 2004, University of Skövde

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-865

► In this work an investigation is performed in whether the algorithms Simultaneous Perturbation Stochastic Approximation (SPSA) and Virtual Force Algorithm (VFA) are suitable for… (more)

Subjects/Keywords: sensor placement real-time algorithms evaluation; Software Engineering; Programvaruteknik

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tiberg, J. (2004). An evaluation of algorithms for real-time strategic placement of sensors. (Thesis). University of Skövde. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-865

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tiberg, Jesper. “An evaluation of algorithms for real-time strategic placement of sensors.” 2004. Thesis, University of Skövde. Accessed December 16, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-865.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tiberg, Jesper. “An evaluation of algorithms for real-time strategic placement of sensors.” 2004. Web. 16 Dec 2019.

Vancouver:

Tiberg J. An evaluation of algorithms for real-time strategic placement of sensors. [Internet] [Thesis]. University of Skövde; 2004. [cited 2019 Dec 16]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-865.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tiberg J. An evaluation of algorithms for real-time strategic placement of sensors. [Thesis]. University of Skövde; 2004. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-865

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

EPFL

30. Guzman Solares, Enrique René. A Novel Structural Health Monitoring Method for Full-Scale CFRP Structures.

Degree: 2015, EPFL

URL: http://infoscience.epfl.ch/record/206768

► Polymer-based composite materials are used to manufacture ultra-light panels, massively introduced in the last decades in the aeronautical industry, as a potential solution to reduce… (more)

▼ Polymer-based composite materials are used to manufacture ultra-light panels, massively introduced in the last decades in the aeronautical industry, as a potential solution to reduce the energy consumption and combustion emissions. Safety being the main concern in aeronautical applications, structural monitoring is essential. However, the currently used survey techniques are not usually adapted to these new materials, and potential improvements are constantly being investigated. New Structural Health Monitoring (SHM) systems have emerged during the last years as an interesting option. A SHM system is based on a precise damage detection strategy, and yields information about structural integrity. Moreover, in spite of their exceptionally high mechanical performances, polymer-based composite materials are more vulnerable than metallic alloys when confronted to aggressive environmental ageing factors. The main motivation of this thesis is then to set the basic foundations of a novel, complete, reliable, robust, fast and low-cost SHM system to be applied to full-scale composite structures. In order to address the ageing characterization problem, a standard method for artificial weathering has been developed. This thesis has focused on the influence of three factors: temperature, relative humidity and UV radiation, and their synergetic interaction. The goal of artificial ageing is to subject the specimens to controlled ageing protocols, in order to observe changes in the elastic properties. Depending on the protocol, the extent of the ageing can reach a degradation of 15 % of the elastic moduli. Concerning data acquisition, the PVDF technology offers an alternative. Proving the survivability of PVDF sensors was essential to justify their integration in a composite structure. The validation has been carried out by comparing the ability of PVDF sensors to provide quality signals, which can prove to be as accurate as those from non-aged sensors (accelerometers). In order to measure the elastic properties, vibrational behaviour could provide information about the internal properties of composite structure. Indeed, structural stiffness is related to the eigenfrequencies, with the mass as an intermediary. However, the orthotropic nature of composites makes this problem more complex, and requires an identification algorithm. The method adopted in this thesis minimizes the difference between experimental and FE simulation results in order to identify the best estimation of the elastic properties. The eigenfrequencies and the mode shapes vehicle information about the internal health of the structure. Concerning the acquisition of structural data, operational modal analysis (OMA) methods were privileged, because of their attributes of robustness and rapidity. The use of OMA has been justified by the difficulty to classic structural perform tests. The frequency domain decomposition (FDD) variant technique uses the notion of singular value decomposition (SVD) to extract the necessary information exclusively from the output sensors.… Advisors/Committee Members: Gmür, Thomas.

Subjects/Keywords: Structural Health Monitoring; piezoelectric sensors; optimal sensor placement; accelerated ageing; inverse methods; Operational Modal Analysis; aeronautical structures; composite materials

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Guzman Solares, E. R. (2015). A Novel Structural Health Monitoring Method for Full-Scale CFRP Structures. (Thesis). EPFL. Retrieved from http://infoscience.epfl.ch/record/206768

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Guzman Solares, Enrique René. “A Novel Structural Health Monitoring Method for Full-Scale CFRP Structures.” 2015. Thesis, EPFL. Accessed December 16, 2019. http://infoscience.epfl.ch/record/206768.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Guzman Solares, Enrique René. “A Novel Structural Health Monitoring Method for Full-Scale CFRP Structures.” 2015. Web. 16 Dec 2019.

Vancouver:

Guzman Solares ER. A Novel Structural Health Monitoring Method for Full-Scale CFRP Structures. [Internet] [Thesis]. EPFL; 2015. [cited 2019 Dec 16]. Available from: http://infoscience.epfl.ch/record/206768.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Guzman Solares ER. A Novel Structural Health Monitoring Method for Full-Scale CFRP Structures. [Thesis]. EPFL; 2015. Available from: http://infoscience.epfl.ch/record/206768

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Open Access Theses and Dissertations