subject:(virtual coordinate based location systems)

Brno University of Technology

1. Smrčka, Lukáš. Lokalizace stanic v Internetu pomocí systému Lighthouses: Localization of nodes in Internet using Lighthouses system.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/4510

► The thesis is focused on the localization of stations in the Internet with the help of artificial coordinate systems. These systems can be used to… (more)

Subjects/Keywords: Predikce zpoždění; umělé souřadnicové systémy; Vivaldi; King; GNP; Lighthouses; PlanetLab.; Prediction delays; virtual coordinate based location systems; Vivaldi; King; GNP; Lighthoueses; PlanetLab.

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APA (6^th Edition):

Smrčka, L. (2018). Lokalizace stanic v Internetu pomocí systému Lighthouses: Localization of nodes in Internet using Lighthouses system. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/4510

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):

Smrčka, Lukáš. “Lokalizace stanic v Internetu pomocí systému Lighthouses: Localization of nodes in Internet using Lighthouses system.” 2018. Thesis, Brno University of Technology. Accessed April 21, 2021. http://hdl.handle.net/11012/4510.

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

MLA Handbook (7^th Edition):

Smrčka, Lukáš. “Lokalizace stanic v Internetu pomocí systému Lighthouses: Localization of nodes in Internet using Lighthouses system.” 2018. Web. 21 Apr 2021.

Vancouver:

Smrčka L. Lokalizace stanic v Internetu pomocí systému Lighthouses: Localization of nodes in Internet using Lighthouses system. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Apr 21]. Available from: http://hdl.handle.net/11012/4510.

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

Council of Science Editors:

Smrčka L. Lokalizace stanic v Internetu pomocí systému Lighthouses: Localization of nodes in Internet using Lighthouses system. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/4510

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

Colorado State University

2. Dhanapala, Dulanjalie C. Anchor centric virtual coordinate systems in wireless sensor networks: from self-organization to network awareness.

Degree: PhD, Electrical and Computer Engineering, 2012, Colorado State University

URL: http://hdl.handle.net/10217/71554

► Future Wireless Sensor Networks (WSNs) will be collections of thousands to millions of sensor nodes, automated to self-organize, adapt, and collaborate to facilitate distributed monitoring… (more)

▼ Future Wireless Sensor Networks (WSNs) will be collections of thousands to millions of sensor nodes, automated to self-organize, adapt, and collaborate to facilitate distributed monitoring and actuation. They may even be deployed over harsh geographical terrains and 3D structures. Low-cost sensor nodes that facilitate such massive scale networks have stringent resource constraints (e.g., in memory and energy) and limited capabilities (e.g., in communication range and computational power). Economic constraints exclude the use of expensive hardware such as Global Positioning Systems (GPSs) for network organization and structuring in many WSN applications. Alternatives that depend on signal strength measurements are highly sensitive to noise and fading, and thus often are not pragmatic for network organization. Robust, scalable, and efficient algorithms for network organization and reliable information exchange that overcome the above limitations without degrading the network's lifespan are vital for facilitating future large-scale WSN networks. This research develops fundamental algorithms and techniques targeting self-organization, data dissemination, and discovery of physical properties such as boundaries of large-scale WSNs without the need for costly physical position information. Our approach is based on Anchor Centric Virtual Coordinate Systems, commonly called Virtual Coordinate Systems (VCSs), in which each node is characterized by a coordinate vector of shortest path hop distances to a set of anchor nodes. We develop and evaluate algorithms and techniques for the following tasks associated with use of VCSs in WSNs: (a) novelty analysis of each anchor coordinate and compressed representation of VCSs; (b) regaining lost directionality and identifying a 'good' set of anchors; (c) generating topology preserving maps (TPMs); (d) efficient and reliable data dissemination, and boundary identification without physical information; and (f) achieving network awareness at individual nodes. After investigating properties and issues related to VCS, a Directional VCS (DVCS) is proposed based on a novel transformation that restores the lost directionality information in VCS. Extreme Node Search (ENS), a novel and efficient anchor placement scheme, starts with two randomly placed anchors and then uses this directional transformation to identify the number and placement of anchors in a completely distributed manner. Furthermore, a novelty-filtering-based approach for identifying a set of 'good' anchors that reduces the overhead and power consumption in routing is discussed. Physical layout information such as physical voids and even relative physical positions of sensor nodes with respect to X-Y directions are absent in a VCS description. Obtaining such information independent of physical information or signal strength measurements has not been possible until now. Two novel techniques to extract Topology Preserving Maps (TPMs) from VCS, based on Singular Value Decomposition (SVD) and DVCS are presented. A TPM is a distorted… Advisors/Committee Members: Jayasumana, Anura P. (advisor), Kirby, Michael (committee member), Pezeshki, Ali (committee member), Ray, Indrakshi (committee member).

Subjects/Keywords: network awareness; phenomena discovery; routing; sensor networks; topology preserving maps; virtual coordinate systems

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APA (6^th Edition):

Dhanapala, D. C. (2012). Anchor centric virtual coordinate systems in wireless sensor networks: from self-organization to network awareness. (Doctoral Dissertation). Colorado State University. Retrieved from http://hdl.handle.net/10217/71554

Chicago Manual of Style (16^th Edition):

Dhanapala, Dulanjalie C. “Anchor centric virtual coordinate systems in wireless sensor networks: from self-organization to network awareness.” 2012. Doctoral Dissertation, Colorado State University. Accessed April 21, 2021. http://hdl.handle.net/10217/71554.

MLA Handbook (7^th Edition):

Dhanapala, Dulanjalie C. “Anchor centric virtual coordinate systems in wireless sensor networks: from self-organization to network awareness.” 2012. Web. 21 Apr 2021.

Vancouver:

Dhanapala DC. Anchor centric virtual coordinate systems in wireless sensor networks: from self-organization to network awareness. [Internet] [Doctoral dissertation]. Colorado State University; 2012. [cited 2021 Apr 21]. Available from: http://hdl.handle.net/10217/71554.

Council of Science Editors:

Dhanapala DC. Anchor centric virtual coordinate systems in wireless sensor networks: from self-organization to network awareness. [Doctoral Dissertation]. Colorado State University; 2012. Available from: http://hdl.handle.net/10217/71554

University of Florida

3. Liu, Xinxin. Privacy Preserving Techniques in Mobile Networks.

Degree: PhD, Computer Engineering - Computer and Information Science and Engineering, 2013, University of Florida

URL: https://ufdc.ufl.edu/UFE0045331

Subjects/Keywords: Coordinate systems; Energy consumption; Entropy; Game theory; Location based services; Mobile devices; Pseudonyms; Sensors; Simulations; Trajectories

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APA (6^th Edition):

Liu, X. (2013). Privacy Preserving Techniques in Mobile Networks. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0045331

Chicago Manual of Style (16^th Edition):

Liu, Xinxin. “Privacy Preserving Techniques in Mobile Networks.” 2013. Doctoral Dissertation, University of Florida. Accessed April 21, 2021. https://ufdc.ufl.edu/UFE0045331.

MLA Handbook (7^th Edition):

Liu, Xinxin. “Privacy Preserving Techniques in Mobile Networks.” 2013. Web. 21 Apr 2021.

Vancouver:

Liu X. Privacy Preserving Techniques in Mobile Networks. [Internet] [Doctoral dissertation]. University of Florida; 2013. [cited 2021 Apr 21]. Available from: https://ufdc.ufl.edu/UFE0045331.

Council of Science Editors:

Liu X. Privacy Preserving Techniques in Mobile Networks. [Doctoral Dissertation]. University of Florida; 2013. Available from: https://ufdc.ufl.edu/UFE0045331

University of Canterbury

4. Billinghurst, M. AntarcticAR: An Outdoor AR Experience of a Virtual Tour to Antarctica.

Degree: Human Interface Technology Laboratory, 2013, University of Canterbury

URL: http://hdl.handle.net/10092/9205

► In this paper we introduce AntarcticAR, a mobile outdoor Augmented Reality (AR) application that provides a virtual tour of Antarctica. Outdoor AR interfaces have often… (more)

Subjects/Keywords: outdoor augmented reality; virtual tour; mobile application; location-based system; Field of Research::08 - Information and Computing Sciences::0801 - Artificial Intelligence and Image Processing::080111 - Virtual Reality and Related Simulation; Fields of Research::46 - Information and computing sciences::4606 - Distributed computing and systems software::460608 - Mobile computing

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APA (6^th Edition):

Billinghurst, M. (2013). AntarcticAR: An Outdoor AR Experience of a Virtual Tour to Antarctica. (Thesis). University of Canterbury. Retrieved from http://hdl.handle.net/10092/9205

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):

Billinghurst, M. “AntarcticAR: An Outdoor AR Experience of a Virtual Tour to Antarctica.” 2013. Thesis, University of Canterbury. Accessed April 21, 2021. http://hdl.handle.net/10092/9205.

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

MLA Handbook (7^th Edition):

Billinghurst, M. “AntarcticAR: An Outdoor AR Experience of a Virtual Tour to Antarctica.” 2013. Web. 21 Apr 2021.

Vancouver:

Billinghurst M. AntarcticAR: An Outdoor AR Experience of a Virtual Tour to Antarctica. [Internet] [Thesis]. University of Canterbury; 2013. [cited 2021 Apr 21]. Available from: http://hdl.handle.net/10092/9205.

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

Council of Science Editors:

Billinghurst M. AntarcticAR: An Outdoor AR Experience of a Virtual Tour to Antarctica. [Thesis]. University of Canterbury; 2013. Available from: http://hdl.handle.net/10092/9205

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

Penn State University

5. Ye, Mao. Mining User-Generated Geo-Social Data for Search and Recommendation.

Degree: 2012, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/15302

► With the increasing availability of GPS-enabled smart phones, rapid development of locationbased services, and growing interests in on-line social networking, a number of location-based social… (more)

▼ With the increasing availability of GPS-enabled smart phones, rapid development of locationbased services, and growing interests in on-line social networking, a number of location-based social networking (LBSN) services such as Facebook Places, Foursquare, Whrrl, Yelp, EveryTrail and TripAdvisor have emerged. These services allow users to explore places, write reviews and blogs, and share their locations and experiences with others. In this thesis, we propose to mine those user-generated geo-social data (e.g., places, reviews, blogs and social links) to enable better search and recommendation services through several innovative techniques. First, we develop a travelogue service that discovers and conveys various travelogue (or trip blog) digests, in form of theme locations, geographical scope, traveling trajectory and location snippet, to users. In this service, theme locations in a travelogue are the core information to discover. Thus we aim to address the problem of theme location discovery to enable the above travelogue services. Due to the inherent ambiguity of location relevance, we perform location relevance mining (LRM) in two complementary angles, relevance classification and relevance ranking, to provide comprehensive understanding of locations. Furthermore, we explore the textual (e.g., surrounding words) and geographical (e.g., geographical relationship among locations) features of locations to develop a co-training model for enhancement of classification performance. Built upon the mining result of LRM, we develop a series of techniques for provisioning of the aforementioned travelogue digests in our travelogue system. Second, we develop a semantic annotation technique for location-based social networks (e.g., Foursquare and Whrrl) to automatically annotate all places with category tags which are a crucial prerequisite for location search. Our annotation algorithm learns a binary support vector machine (SVM) classifier for each tag in the tag space to support multi-label classification. Based on the check-in behavior of users, we extract features of places from i) explicit patterns (EP) of individual places and ii) implicit relatedness (IR) among similar places. The features extracted from EP are summarized from all check-ins at a specific place. The features from IR are derived by building a novel network of related places (NRP) where similar places are linked by virtual edges. Upon NRP, we determine the probability of a category tag for each place by exploring the relatedness of places. Both EP and IR features are complementary with each other and beneficial for the proposed classification task. Third, we provide a point-of-interests (POIs) recommendation service for the rapid growing location-based social networks (LBSNs), e.g., Foursquare, Whrrl, etc. The idea is to explore user preference, social influence and geographical influence for POI recommendations. In addition to deriving user preference based on user-based collaborative filtering and exploring social influence from friends, we put a special… Advisors/Committee Members: Wang Chien Lee, Committee Chair/Co-Chair, Tom La Porta, Committee Member, Piotr Berman, Committee Member, Xiaolong Zhang, Committee Member.

Subjects/Keywords: Social Network; Data Mining; Location-based Services; Recommender Systems; Information Retrieval

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APA (6^th Edition):

Ye, M. (2012). Mining User-Generated Geo-Social Data for Search and Recommendation. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/15302

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):

Ye, Mao. “Mining User-Generated Geo-Social Data for Search and Recommendation.” 2012. Thesis, Penn State University. Accessed April 21, 2021. https://submit-etda.libraries.psu.edu/catalog/15302.

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

MLA Handbook (7^th Edition):

Ye, Mao. “Mining User-Generated Geo-Social Data for Search and Recommendation.” 2012. Web. 21 Apr 2021.

Vancouver:

Ye M. Mining User-Generated Geo-Social Data for Search and Recommendation. [Internet] [Thesis]. Penn State University; 2012. [cited 2021 Apr 21]. Available from: https://submit-etda.libraries.psu.edu/catalog/15302.

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

Council of Science Editors:

Ye M. Mining User-Generated Geo-Social Data for Search and Recommendation. [Thesis]. Penn State University; 2012. Available from: https://submit-etda.libraries.psu.edu/catalog/15302

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

Hong Kong University of Science and Technology

6. Wong, Tsz Lung. Automatic map construction with video survey for indoor WiFi-based localization.

Degree: 2015, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-78821 ; https://doi.org/10.14711/thesis-b1514384 ; http://repository.ust.hk/ir/bitstream/1783.1-78821/1/th_redirect.html

► With the fast development of the mobile Internet, data and multimedia services are expanding rapidly, and the demand of Location Based Services (LBSs) is also… (more)

Subjects/Keywords: Location-based services ; Wireless localization ; Indoor positioning systems (Wireless localization)

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APA (6^th Edition):

Wong, T. L. (2015). Automatic map construction with video survey for indoor WiFi-based localization. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-78821 ; https://doi.org/10.14711/thesis-b1514384 ; http://repository.ust.hk/ir/bitstream/1783.1-78821/1/th_redirect.html

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):

Wong, Tsz Lung. “Automatic map construction with video survey for indoor WiFi-based localization.” 2015. Thesis, Hong Kong University of Science and Technology. Accessed April 21, 2021. http://repository.ust.hk/ir/Record/1783.1-78821 ; https://doi.org/10.14711/thesis-b1514384 ; http://repository.ust.hk/ir/bitstream/1783.1-78821/1/th_redirect.html.

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

MLA Handbook (7^th Edition):

Wong, Tsz Lung. “Automatic map construction with video survey for indoor WiFi-based localization.” 2015. Web. 21 Apr 2021.

Vancouver:

Wong TL. Automatic map construction with video survey for indoor WiFi-based localization. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2015. [cited 2021 Apr 21]. Available from: http://repository.ust.hk/ir/Record/1783.1-78821 ; https://doi.org/10.14711/thesis-b1514384 ; http://repository.ust.hk/ir/bitstream/1783.1-78821/1/th_redirect.html.

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

Council of Science Editors:

Wong TL. Automatic map construction with video survey for indoor WiFi-based localization. [Thesis]. Hong Kong University of Science and Technology; 2015. Available from: http://repository.ust.hk/ir/Record/1783.1-78821 ; https://doi.org/10.14711/thesis-b1514384 ; http://repository.ust.hk/ir/bitstream/1783.1-78821/1/th_redirect.html

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

Hong Kong University of Science and Technology

7. Li, Bing. CSI-based WiFi-intertial state estimation.

Degree: 2016, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-87412 ; https://doi.org/10.14711/thesis-b1626095 ; http://repository.ust.hk/ir/bitstream/1783.1-87412/1/th_redirect.html

► WiFi-based localization has received increasing attentions these years as WiFi devices are low-cost and universal. Recent years, tens of WiFi-based localization systems have been proposed… (more)

Subjects/Keywords: Wireless localization ; Mathematical models ; Location-based services ; Wireless communication systems

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APA (6^th Edition):

Li, B. (2016). CSI-based WiFi-intertial state estimation. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-87412 ; https://doi.org/10.14711/thesis-b1626095 ; http://repository.ust.hk/ir/bitstream/1783.1-87412/1/th_redirect.html

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):

Li, Bing. “CSI-based WiFi-intertial state estimation.” 2016. Thesis, Hong Kong University of Science and Technology. Accessed April 21, 2021. http://repository.ust.hk/ir/Record/1783.1-87412 ; https://doi.org/10.14711/thesis-b1626095 ; http://repository.ust.hk/ir/bitstream/1783.1-87412/1/th_redirect.html.

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

MLA Handbook (7^th Edition):

Li, Bing. “CSI-based WiFi-intertial state estimation.” 2016. Web. 21 Apr 2021.

Vancouver:

Li B. CSI-based WiFi-intertial state estimation. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2016. [cited 2021 Apr 21]. Available from: http://repository.ust.hk/ir/Record/1783.1-87412 ; https://doi.org/10.14711/thesis-b1626095 ; http://repository.ust.hk/ir/bitstream/1783.1-87412/1/th_redirect.html.

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

Council of Science Editors:

Li B. CSI-based WiFi-intertial state estimation. [Thesis]. Hong Kong University of Science and Technology; 2016. Available from: http://repository.ust.hk/ir/Record/1783.1-87412 ; https://doi.org/10.14711/thesis-b1626095 ; http://repository.ust.hk/ir/bitstream/1783.1-87412/1/th_redirect.html

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

Hong Kong University of Science and Technology

8. Fung, King Hong CSE. Combining differential privacy and PIR for efficient strong location privacy.

Degree: 2015, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-94420 ; https://doi.org/10.14711/thesis-b1487523 ; http://repository.ust.hk/ir/bitstream/1783.1-94420/1/th_redirect.html

► Data privacy is a huge concern nowadays. In the context of location based services, a very important issue regards protecting the position of users issuing… (more)

Subjects/Keywords: Location-based services ; Security measures ; Information storage and retrieval systems ; Privacy

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APA (6^th Edition):

Fung, K. H. C. (2015). Combining differential privacy and PIR for efficient strong location privacy. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-94420 ; https://doi.org/10.14711/thesis-b1487523 ; http://repository.ust.hk/ir/bitstream/1783.1-94420/1/th_redirect.html

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):

Fung, King Hong CSE. “Combining differential privacy and PIR for efficient strong location privacy.” 2015. Thesis, Hong Kong University of Science and Technology. Accessed April 21, 2021. http://repository.ust.hk/ir/Record/1783.1-94420 ; https://doi.org/10.14711/thesis-b1487523 ; http://repository.ust.hk/ir/bitstream/1783.1-94420/1/th_redirect.html.

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

MLA Handbook (7^th Edition):

Fung, King Hong CSE. “Combining differential privacy and PIR for efficient strong location privacy.” 2015. Web. 21 Apr 2021.

Vancouver:

Fung KHC. Combining differential privacy and PIR for efficient strong location privacy. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2015. [cited 2021 Apr 21]. Available from: http://repository.ust.hk/ir/Record/1783.1-94420 ; https://doi.org/10.14711/thesis-b1487523 ; http://repository.ust.hk/ir/bitstream/1783.1-94420/1/th_redirect.html.

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

Council of Science Editors:

Fung KHC. Combining differential privacy and PIR for efficient strong location privacy. [Thesis]. Hong Kong University of Science and Technology; 2015. Available from: http://repository.ust.hk/ir/Record/1783.1-94420 ; https://doi.org/10.14711/thesis-b1487523 ; http://repository.ust.hk/ir/bitstream/1783.1-94420/1/th_redirect.html

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

Hong Kong University of Science and Technology

9. He, Suining CSE. Enhancing accuracy for fingerprint-based indoor localization.

Degree: 2016, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-100457 ; https://doi.org/10.14711/thesis-b1628159 ; http://repository.ust.hk/ir/bitstream/1783.1-100457/1/th_redirect.html

► The commercial potential of indoor location-based services (ILBS) has spurred recent development of many indoor positioning techniques. Fingerprinting has attracted much attention recently due to… (more)

▼ The commercial potential of indoor location-based services (ILBS) has spurred recent development of many indoor positioning techniques. Fingerprinting has attracted much attention recently due to its adaptivity to none-line-of-sight measurement from access points (APs) and high applicability in complex indoor environment. Offering quality ILBS requires accurate indoor positioning. In this thesis, we study several approaches to make Wi-Fi fingerprinting highly accurate. The approaches are to mitigate noisy signal measurement, to fuse distance sensor with fingerprinting, and to adaptively learn fingerprint patterns over time. We will conduct extensive experimental studies to validate the performance of the approaches. Previous fingerprinting positioning based on certain similarity metric often suffers from ambiguous matching problem of reference points, resulting in high decision uncertainty. To address this, we propose a novel approach based on junction of signal tiles, which are formed based on the first two moments of the signals. The target location is then constrained within the junction area. This overcomes position ambiguity problem and achieves highly accurate positioning. To further enhance the localization accuracy, we study how to fuse fingerprint with distance information. Our approach is applicable to a wide range of sensors (peer-assisted, inertial navigation sensor, beacons, etc.) and wireless fingerprints (Wi-Fi, Bluetooth, etc.). By a novel optimization formulation which jointly fuses distance bounds and measured fingerprint signals, it achieves low positioning errors even under complex indoor environment. Fingerprinting accuracy deteriorates if the AP signals are altered (due to AP movement, partitioning, etc.). To address this, the signal map needs to be adapted overtime. We propose and study a novel clustering-based scheme which can localize targets despite AP alteration, and can identify the altered APs. Using a novel online learning approach, our algorithm can also adapt the fingerprint map to the altered signal environment.

Subjects/Keywords: Indoor positioning systems (Wireless localization) ; Wireless localization ; Location-based services

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APA (6^th Edition):

He, S. C. (2016). Enhancing accuracy for fingerprint-based indoor localization. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-100457 ; https://doi.org/10.14711/thesis-b1628159 ; http://repository.ust.hk/ir/bitstream/1783.1-100457/1/th_redirect.html

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):

He, Suining CSE. “Enhancing accuracy for fingerprint-based indoor localization.” 2016. Thesis, Hong Kong University of Science and Technology. Accessed April 21, 2021. http://repository.ust.hk/ir/Record/1783.1-100457 ; https://doi.org/10.14711/thesis-b1628159 ; http://repository.ust.hk/ir/bitstream/1783.1-100457/1/th_redirect.html.

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

MLA Handbook (7^th Edition):

He, Suining CSE. “Enhancing accuracy for fingerprint-based indoor localization.” 2016. Web. 21 Apr 2021.

Vancouver:

He SC. Enhancing accuracy for fingerprint-based indoor localization. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2016. [cited 2021 Apr 21]. Available from: http://repository.ust.hk/ir/Record/1783.1-100457 ; https://doi.org/10.14711/thesis-b1628159 ; http://repository.ust.hk/ir/bitstream/1783.1-100457/1/th_redirect.html.

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

Council of Science Editors:

He SC. Enhancing accuracy for fingerprint-based indoor localization. [Thesis]. Hong Kong University of Science and Technology; 2016. Available from: http://repository.ust.hk/ir/Record/1783.1-100457 ; https://doi.org/10.14711/thesis-b1628159 ; http://repository.ust.hk/ir/bitstream/1783.1-100457/1/th_redirect.html

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

Rutgers University

10. Wang, Qiaojun, 1984-. Kernel learning and applications in wireless localization.

Degree: PhD, Electrical and Computer Engineering, 2016, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/49345/

►

Recent advances in mobile and pervasive computing have enabled accurate location tracking of users wearing wireless devices indoors, where GPS isn’t available. Many indoor WiFi… (more)

Subjects/Keywords: Machine learning; Location-based services; Wireless communication systems

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APA (6^th Edition):

Wang, Qiaojun, 1. (2016). Kernel learning and applications in wireless localization. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/49345/

Chicago Manual of Style (16^th Edition):

Wang, Qiaojun, 1984-. “Kernel learning and applications in wireless localization.” 2016. Doctoral Dissertation, Rutgers University. Accessed April 21, 2021. https://rucore.libraries.rutgers.edu/rutgers-lib/49345/.

MLA Handbook (7^th Edition):

Wang, Qiaojun, 1984-. “Kernel learning and applications in wireless localization.” 2016. Web. 21 Apr 2021.

Vancouver:

Wang, Qiaojun 1. Kernel learning and applications in wireless localization. [Internet] [Doctoral dissertation]. Rutgers University; 2016. [cited 2021 Apr 21]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/49345/.

Council of Science Editors:

Wang, Qiaojun 1. Kernel learning and applications in wireless localization. [Doctoral Dissertation]. Rutgers University; 2016. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/49345/

Michigan State University

11. Qiu, Chen (Software engineer). Improving indoor positioning via mobile sensing.

Degree: 2017, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:4764

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Thesis Ph. D. Michigan State University. Computer Science 2017

Accurate indoor position and movement information of devices enables numerous opportunities for location based services. Services… (more)

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Thesis Ph. D. Michigan State University. Computer Science 2017

Accurate indoor position and movement information of devices enables numerous opportunities for location based services. Services such as guiding users through buildings, highlighting nearby services within shopping malls, or tracking the number of steps taken are some of the opportunities available when accurate positioning information is computed by devices. GPS provides accurate localization results in an outdoor environment, such as navigation information for vehicles. Unfortunately, GPS cannot be applied indoors pervasively due to the various interferences.Indoor localization has been a challenging and significant topic in recent decades. Although extensive research has been dedicated to this field, accurate indoor location information remains a challenge without the incorporation of expensive devices or sophisticated infrastructures within buildings. We explored one practical approach for indoor map construction and four representative resolutions for indoor positioning.Considering most indoor localization approaches are based upon indoor maps, we develop techniques to construct indoor maps. Since indoor maps might be dynamic and updated regularly, we present iFrame, a dynamic approach that uses mobile sensing techniques for constructing 2-dimensional indoor maps. We abstract the unknown map as a matrix and use mobile devices that incorporate three mobile sensing technologies - accelerometers to support dead reckoning, Bluetooth RSSI detection, and WiFi RSSI detection. The layouts of rooms and hallways can be constructed automatically within 5-10 minutes.Based on the indoor map, we propose four indoor localization approaches by leveraging mobile sensing techniques. First, although GPS can not help indoor localization directly, we propose iLoom, which adopts a user's motion behaviors built by GPS information to enhance indoor localization. iLoom leverages an Acceleration Range Box to improve a user's acceleration value used for computing dead reckoning. By transfer learning the information from users' motion behaviors to the Acceleration Range Box, iLoom improves the Acceleration Range Box to achieve more accurate indoor positioning results. Second, we introduce CRISP - a prototype that leverages opportunities of the interaction of multiple smartphones to enhance indoor positioning. When mobile devices cooperate and share position information iteratively, the localization accuracies of mobile devices increases gradually. In addition, based upon the obtained location information, CRISP provide a pedometer that can avoid the accumulative errors caused by accelerometers. Third, we present SilentWhistle, a mobile prototype that incorporates acoustic information and motion traces on smartphones to locate users. When users encounter each other or related beacons, by measuring the relation between sound strength and distance, the initial location information obtained by dead reckoning can be enhanced by triangulations transferred from sound strength.…

Advisors/Committee Members: Mutka, Matt W, Xiao, Li, Xing, Guoliang, Zhang, Mi.

Subjects/Keywords: Indoor positioning systems (Wireless localization); Location-based services; Computer science

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

APA (6^th Edition):

Qiu, C. (. e. (2017). Improving indoor positioning via mobile sensing. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:4764

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):

Qiu, Chen (Software engineer). “Improving indoor positioning via mobile sensing.” 2017. Thesis, Michigan State University. Accessed April 21, 2021. http://etd.lib.msu.edu/islandora/object/etd:4764.

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

MLA Handbook (7^th Edition):

Qiu, Chen (Software engineer). “Improving indoor positioning via mobile sensing.” 2017. Web. 21 Apr 2021.

Vancouver:

Qiu C(e. Improving indoor positioning via mobile sensing. [Internet] [Thesis]. Michigan State University; 2017. [cited 2021 Apr 21]. Available from: http://etd.lib.msu.edu/islandora/object/etd:4764.

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

Council of Science Editors:

Qiu C(e. Improving indoor positioning via mobile sensing. [Thesis]. Michigan State University; 2017. Available from: http://etd.lib.msu.edu/islandora/object/etd:4764

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

Universidade Nova

12. Buczkowski, Aleksander. Location-based Marketing: the academic framework.

Degree: 2012, Universidade Nova

URL: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/8314

►

Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.

Over the last several years one could… (more)

Subjects/Keywords: Location-Based Marketing; Location-Based Advertising; Location-Based Services; Location-Based Content; Location-Based Social Networks; Location-Based Social Media

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

APA (6^th Edition):

Buczkowski, A. (2012). Location-based Marketing: the academic framework. (Thesis). Universidade Nova. Retrieved from http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/8314

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):

Buczkowski, Aleksander. “Location-based Marketing: the academic framework.” 2012. Thesis, Universidade Nova. Accessed April 21, 2021. http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/8314.

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

MLA Handbook (7^th Edition):

Buczkowski, Aleksander. “Location-based Marketing: the academic framework.” 2012. Web. 21 Apr 2021.

Vancouver:

Buczkowski A. Location-based Marketing: the academic framework. [Internet] [Thesis]. Universidade Nova; 2012. [cited 2021 Apr 21]. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/8314.

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

Council of Science Editors:

Buczkowski A. Location-based Marketing: the academic framework. [Thesis]. Universidade Nova; 2012. Available from: http://www.rcaap.pt/detail.jsp?id=oai:run.unl.pt:10362/8314

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

KTH

13. Lindblom, Fredrik. Spatial Replay Protection for Proximity Services : Security and privacy aspects.

Degree: Information and Communication Technology (ICT), 2016, KTH

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190130

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Proximity Services is a new feature in the 3rd Generation Partnership Project (3GPP) standard for mobile communication. This features gives the opportunity to provide… (more)

▼

Proximity Services is a new feature in the 3rd Generation Partnership Project (3GPP) standard for mobile communication. This features gives the opportunity to provide services locally if the targets are sufficiently close. However, in the current version of the proposed specification, there is no protection against a malicious user tunneling messages to a remote location to give the impression of proximity. This thesis proposes solutions to protect against such a spatial replay attack and evaluates these solutions based on how the user’s integrity is preserved, their complexity, and the added overhead. It is not obvious today what the consequences of a spatial replay attack are and how serious such an attack could be. However, once the feature is deployed and people start using it, it could prove to be a major vulnerability. The methods presented in this thesis could be used to prevent spatial replay in 3GPP or similar standards proximity services. The chosen method is a geographical packet leash based on a poly-cylindrical grid for which only a certain amount of Least Significant Bits of the grid cell identifier is included in the initial Discovery Message and the rest could be used in the calculation of the Message Authentication Code.

Proximity Services är en ny funktion inom 3rd Generation Partnership Project (3GPP) standard för mobil kommunikation. Den möjliggör att erbjuda tjänster lokalt om de tänkta användarna är tillräckligt nära. I den nuvarande versionen av specifikationen så finns det dock inget som hindrar en tredje part med onda avsikter från att tunnla meddelanden från den ursprungliga platsen till en annan som inte är i närheten för att ge intrycket till mottagaren att sändaren finns nära. Det här examensarbetet föreslår lösningar för att begränsa nämnda attack och utvärderar dem efter hur de påverkar användarnas platssekretess, lösningens komplexitet och den overhead de innebär. Det är idag inte uppenbart på vilket sätt den nämnda attacken skulle kunna påverka användarna och hur allvarliga konsekvenserna kan bli, men när standarden är implementerad och eventuella användare tillkommer så skulle det kunna visa sig innebära en stor risk. Lösningarna som presenteras i det här examensarbetet skulle kunna användas för att begränsa den här typen av attacker inom 3GPPs standard eller liknande baserade på närhet. Den metoden som har valts är ett ’geographical packet leash’ baserat på ett polycylindriskt rutnät för vilket endast en bestämd mängd minst signifikanta bitar är inkluderade i ett inledande Discovery Message medans resten kan användas i beräkningen av Message Authentication Code.

Subjects/Keywords: Location Based Services; Proximity Services; Spatial Replay; 3GPP; Location Privacy; Platsbaserade tjänster; Proximity Services; Spatial Replay; 3GPP; Platssekretess; Communication Systems; Kommunikationssystem

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

APA (6^th Edition):

Lindblom, F. (2016). Spatial Replay Protection for Proximity Services : Security and privacy aspects. (Thesis). KTH. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190130

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):

Lindblom, Fredrik. “Spatial Replay Protection for Proximity Services : Security and privacy aspects.” 2016. Thesis, KTH. Accessed April 21, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190130.

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

MLA Handbook (7^th Edition):

Lindblom, Fredrik. “Spatial Replay Protection for Proximity Services : Security and privacy aspects.” 2016. Web. 21 Apr 2021.

Vancouver:

Lindblom F. Spatial Replay Protection for Proximity Services : Security and privacy aspects. [Internet] [Thesis]. KTH; 2016. [cited 2021 Apr 21]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190130.

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

Council of Science Editors:

Lindblom F. Spatial Replay Protection for Proximity Services : Security and privacy aspects. [Thesis]. KTH; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-190130

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

University of Florida

14. Hunt, William C. A Computer-Based Simulation for Training Dental Preparation.

Degree: MS, Computer Engineering - Computer and Information Science and Engineering, 2012, University of Florida

URL: https://ufdc.ufl.edu/UFE0044204

► We present a low-cost VR simulation environment for dental students that allows trainees to practice dental preparation. The trainee haptically interacts with a virtual tooth,… (more)

Subjects/Keywords: College students; Coordinate systems; Data models; Dental models; Drilling; Maps; Simulations; Teeth; Tooth enamel; Virtual reality; dental – drilling – graphics – haptic – preparation – simulation – training – virtual

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APA (6^th Edition):

Hunt, W. C. (2012). A Computer-Based Simulation for Training Dental Preparation. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044204

Chicago Manual of Style (16^th Edition):

Hunt, William C. “A Computer-Based Simulation for Training Dental Preparation.” 2012. Masters Thesis, University of Florida. Accessed April 21, 2021. https://ufdc.ufl.edu/UFE0044204.

MLA Handbook (7^th Edition):

Hunt, William C. “A Computer-Based Simulation for Training Dental Preparation.” 2012. Web. 21 Apr 2021.

Vancouver:

Hunt WC. A Computer-Based Simulation for Training Dental Preparation. [Internet] [Masters thesis]. University of Florida; 2012. [cited 2021 Apr 21]. Available from: https://ufdc.ufl.edu/UFE0044204.

Council of Science Editors:

Hunt WC. A Computer-Based Simulation for Training Dental Preparation. [Masters Thesis]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044204

University of Florida

15. Osentowski, Joseph P. The Use of Area Features and Single Camera Perspective for Determining Camera Position.

Degree: MS, Mechanical Engineering - Mechanical and Aerospace Engineering, 2012, University of Florida

URL: https://ufdc.ufl.edu/UFE0044730

► In this project, a computer algorithm was developed to determine the position of a camera based solely on area features extracted from the image of… (more)

Subjects/Keywords: Algorithms; Azimuth; Cameras; Colors; Coordinate systems; Geometric angles; Standard deviation; Symmetry; Wheels; Zenith; analysis – computer – determination – location – navigation – photogrammetry – robot – scene – vision; City of Jacksonville ( local )

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

APA (6^th Edition):

Osentowski, J. P. (2012). The Use of Area Features and Single Camera Perspective for Determining Camera Position. (Masters Thesis). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0044730

Chicago Manual of Style (16^th Edition):

Osentowski, Joseph P. “The Use of Area Features and Single Camera Perspective for Determining Camera Position.” 2012. Masters Thesis, University of Florida. Accessed April 21, 2021. https://ufdc.ufl.edu/UFE0044730.

MLA Handbook (7^th Edition):

Osentowski, Joseph P. “The Use of Area Features and Single Camera Perspective for Determining Camera Position.” 2012. Web. 21 Apr 2021.

Vancouver:

Osentowski JP. The Use of Area Features and Single Camera Perspective for Determining Camera Position. [Internet] [Masters thesis]. University of Florida; 2012. [cited 2021 Apr 21]. Available from: https://ufdc.ufl.edu/UFE0044730.

Council of Science Editors:

Osentowski JP. The Use of Area Features and Single Camera Perspective for Determining Camera Position. [Masters Thesis]. University of Florida; 2012. Available from: https://ufdc.ufl.edu/UFE0044730

Penn State University

16. Gupta, Gaurav. PERSONALIZED AND EFFICIENT TOP-K SPATIAL OBJECT RECOMMENDATION IN LOCATION BASED SOCIAL NETWORKS.

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/11575

► Location Based Social Networks (LBSNs) have become popular among people in recent times. LBSN allow people to tag their presence at the places they visit,… (more)

Subjects/Keywords: location based social networks; recommendation systems; social network analysis; collaborative filtering; spatial databases

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

APA (6^th Edition):

Gupta, G. (2011). PERSONALIZED AND EFFICIENT TOP-K SPATIAL OBJECT RECOMMENDATION IN LOCATION BASED SOCIAL NETWORKS. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/11575

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):

Gupta, Gaurav. “PERSONALIZED AND EFFICIENT TOP-K SPATIAL OBJECT RECOMMENDATION IN LOCATION BASED SOCIAL NETWORKS.” 2011. Thesis, Penn State University. Accessed April 21, 2021. https://submit-etda.libraries.psu.edu/catalog/11575.

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

MLA Handbook (7^th Edition):

Gupta, Gaurav. “PERSONALIZED AND EFFICIENT TOP-K SPATIAL OBJECT RECOMMENDATION IN LOCATION BASED SOCIAL NETWORKS.” 2011. Web. 21 Apr 2021.

Vancouver:

Gupta G. PERSONALIZED AND EFFICIENT TOP-K SPATIAL OBJECT RECOMMENDATION IN LOCATION BASED SOCIAL NETWORKS. [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Apr 21]. Available from: https://submit-etda.libraries.psu.edu/catalog/11575.

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

Council of Science Editors:

Gupta G. PERSONALIZED AND EFFICIENT TOP-K SPATIAL OBJECT RECOMMENDATION IN LOCATION BASED SOCIAL NETWORKS. [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/11575

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

17. Ye, Xiaoyi. WiFiPoz – an accurate indoor positioning system.

Degree: MS, Computer Science, 2012, Eastern Washington University

URL: https://dc.ewu.edu/theses/81

► "Location based services are becoming an important part of life. Wide adoption of GPS in mobile devices combined with cellular networks has practically solved… (more)

▼ "Location based services are becoming an important part of life. Wide adoption of GPS in mobile devices combined with cellular networks has practically solved the problem of outdoor localization needs. The problem of locating an indoor user has being studied only recently. Much research contributed to the innovative concept of an indoor positioning system. By analyzing different technologies and algorithms, this thesis concluded that, considering a trade-off between accuracy and cost, a Wi-Fi based Fingerprint method is proved to be the most promising approach to determine the location of a mobile device. However, the Fingerprint method works in two phases-an offline training phase (collection of Received Signal Strength signatures) and an online phase in which data from the first phase is used to determine the current position of a mobile user. The number of training points in a certain area has a direct impact on the accuracy of the system. As a result, the offline phase is a tedious and cumbersome process and the positioning systems are only as accurate as the offline training phase has been detailed. Moreover, the offline phase must be repeated every time a change in the environment occurs. To avoid these limitations, we focus on improving the accuracy of the indoor positioning system, without increasing the number of training points. This thesis presents a Wi-Fi based system for locating a user inside a building. The system is named WiFiPoz, which means Wi-Fi positioning system based on the zoning method. WiFiPoz has a novel approach to Fingerprint method that incorporates Propagation and zoning methods. Experimental results show that WiFiPoz is highly efficient both in accuracy and costs. Compared to traditional Fingerprint methods, with the optimization of the accuracy of the location estimation, WiFiPoz reduces the number of training points. This feature makes it possible to quickly adapt to changes in the environment. In order to explore another possible solution, this thesis also developed, implemented and tested an indoor positioning system named GIS (Geometric Information based positioning System), which is based on a model proposed by another researcher. Several experiments were run in the offline phase and results were compared between the traditional Fingerprint method, GIS and proposed WiFiPoz. We concluded that WiFiPoz is a more efficient and simple way to increase the accuracy of the location determination with fewer training points" – Document.

Subjects/Keywords: Location-based services; Mobile geographic information systems; Global Positioning System; Computer Sciences

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

APA (6^th Edition):

Ye, X. (2012). WiFiPoz – an accurate indoor positioning system. (Thesis). Eastern Washington University. Retrieved from https://dc.ewu.edu/theses/81

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):

Ye, Xiaoyi. “WiFiPoz – an accurate indoor positioning system.” 2012. Thesis, Eastern Washington University. Accessed April 21, 2021. https://dc.ewu.edu/theses/81.

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

MLA Handbook (7^th Edition):

Ye, Xiaoyi. “WiFiPoz – an accurate indoor positioning system.” 2012. Web. 21 Apr 2021.

Vancouver:

Ye X. WiFiPoz – an accurate indoor positioning system. [Internet] [Thesis]. Eastern Washington University; 2012. [cited 2021 Apr 21]. Available from: https://dc.ewu.edu/theses/81.

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

Council of Science Editors:

Ye X. WiFiPoz – an accurate indoor positioning system. [Thesis]. Eastern Washington University; 2012. Available from: https://dc.ewu.edu/theses/81

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

Hong Kong University of Science and Technology

18. Chen, Yingjie. PriLa : privacy-preserving location authentication in WiFi with fine-grained physical layer information.

Degree: 2014, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-70844 ; https://doi.org/10.14711/thesis-b1333629 ; http://repository.ust.hk/ir/bitstream/1783.1-70844/1/th_redirect.html

► The surging deployment of WiFi hotspots in public places has been driving the blossoming of location-based services (LBSs) over the past few years. Typically, many… (more)

Subjects/Keywords: Wireless communication systems ; Security measures ; Location-based services ; Data encryption (Computer science)

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

APA (6^th Edition):

Chen, Y. (2014). PriLa : privacy-preserving location authentication in WiFi with fine-grained physical layer information. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-70844 ; https://doi.org/10.14711/thesis-b1333629 ; http://repository.ust.hk/ir/bitstream/1783.1-70844/1/th_redirect.html

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):

Chen, Yingjie. “PriLa : privacy-preserving location authentication in WiFi with fine-grained physical layer information.” 2014. Thesis, Hong Kong University of Science and Technology. Accessed April 21, 2021. http://repository.ust.hk/ir/Record/1783.1-70844 ; https://doi.org/10.14711/thesis-b1333629 ; http://repository.ust.hk/ir/bitstream/1783.1-70844/1/th_redirect.html.

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

MLA Handbook (7^th Edition):

Chen, Yingjie. “PriLa : privacy-preserving location authentication in WiFi with fine-grained physical layer information.” 2014. Web. 21 Apr 2021.

Vancouver:

Chen Y. PriLa : privacy-preserving location authentication in WiFi with fine-grained physical layer information. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2014. [cited 2021 Apr 21]. Available from: http://repository.ust.hk/ir/Record/1783.1-70844 ; https://doi.org/10.14711/thesis-b1333629 ; http://repository.ust.hk/ir/bitstream/1783.1-70844/1/th_redirect.html.

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

Council of Science Editors:

Chen Y. PriLa : privacy-preserving location authentication in WiFi with fine-grained physical layer information. [Thesis]. Hong Kong University of Science and Technology; 2014. Available from: http://repository.ust.hk/ir/Record/1783.1-70844 ; https://doi.org/10.14711/thesis-b1333629 ; http://repository.ust.hk/ir/bitstream/1783.1-70844/1/th_redirect.html

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

Rutgers University

19. Chandrasekaran, Gayathri. Direct inference of location-related context from wireless signal strength.

Degree: PhD, Computer Science, 2011, Rutgers University

URL: http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000061167

►

In this dissertation we derive location-related context likemobility-states, co-mobility, speed and decelerations directly from the wireless signal strength information. The key insight is that the… (more)

Subjects/Keywords: Wireless communication systems; Location-based services

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

APA (6^th Edition):

Chandrasekaran, G. (2011). Direct inference of location-related context from wireless signal strength. (Doctoral Dissertation). Rutgers University. Retrieved from http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000061167

Chicago Manual of Style (16^th Edition):

Chandrasekaran, Gayathri. “Direct inference of location-related context from wireless signal strength.” 2011. Doctoral Dissertation, Rutgers University. Accessed April 21, 2021. http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000061167.

MLA Handbook (7^th Edition):

Chandrasekaran, Gayathri. “Direct inference of location-related context from wireless signal strength.” 2011. Web. 21 Apr 2021.

Vancouver:

Chandrasekaran G. Direct inference of location-related context from wireless signal strength. [Internet] [Doctoral dissertation]. Rutgers University; 2011. [cited 2021 Apr 21]. Available from: http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000061167.

Council of Science Editors:

Chandrasekaran G. Direct inference of location-related context from wireless signal strength. [Doctoral Dissertation]. Rutgers University; 2011. Available from: http://hdl.rutgers.edu/1782.1/rucore10001600001.ETD.000061167

University of Melbourne

20. CHEN, YIQUN. Agent-based recreation experiences simulation in a 3D virtual environment.

Degree: 2013, University of Melbourne

URL: http://hdl.handle.net/11343/38008

► Simulation of human behaviour involves many subjective often subtle factors such as perceptions and preferences. This is particularly true when trying to replicate visitors’ behaviour… (more)

▼ Simulation of human behaviour involves many subjective often subtle factors such as perceptions and preferences. This is particularly true when trying to replicate visitors’ behaviour in outdoor recreation environments like urban parks and gardens. In order to manage outdoor recreation resources, an effective visitor simulation system can assist managers and planners in their decision-making processes by performing quick tests on various management alternatives. This thesis describes the development of a visitor simulation system for the management of outdoor recreation environments. The system was designed to be capable of reflecting people’s outdoor environment perceptions and landscape preferences. To achieve this goal, four sequential research components were involved: (1) on-site visitor survey and behaviour pattern analysis; (2) simulation platform implementation; (3) visitor agent model design and (4) calibration and evaluation of the developed system. A sound understanding of the interactions between visitors and their outdoor recreation environments is critical to the design of a simulation system. To collect a variety of visitor data on site, an iPhone based mobile survey (called iSurv) was developed and operated in the Australian Garden for 12 months. Analysis of the collected data demonstrated clear visitor behaviour patterns and provided direct guidance to the visitor agent model design. Choosing the simulation platform is the next crucial step. In this research, the simulation system was derived from a commercial 3D game engine. A 3D simulation environment provides agents with virtual vision to support decision-making. By porting real word GIS data into different scenario models and assembling them together, the virtual infrastructure created in a 3D environment formed the base environment for the agent-based simulation system. Visitor agent model design was the next key step. By analysing the general agent design paradigm, pertinent parameters (e.g., demographics, expectations and feelings) and capabilities (e.g., perception, reasoning and action) of agents were identified. The agent behaviour was modelled through a combination of its parameters, capabilities and the environmental variables. Finally, the simulation system was evaluated and high correlations were reported between observed data and simulated outputs. The effectiveness of the developed system was further illustrated by the cogent simulation results for two future scenarios. The research demonstrated the feasibility of creating a visitor simulation system, to a sufficient level of realism, predominantly based on environmental perceptions and landscape preferences factors. The potential of such a tool in outdoor recreation resources management is clear.

Subjects/Keywords: agent-based modelling; virtual environment; location based survey; Torque 3D Game Engine; affordance theory; iOS; image processing; landscape aesthetic preference; visitor behaviour pattern; urban garden management

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APA (6^th Edition):

CHEN, Y. (2013). Agent-based recreation experiences simulation in a 3D virtual environment. (Doctoral Dissertation). University of Melbourne. Retrieved from http://hdl.handle.net/11343/38008

Chicago Manual of Style (16^th Edition):

CHEN, YIQUN. “Agent-based recreation experiences simulation in a 3D virtual environment.” 2013. Doctoral Dissertation, University of Melbourne. Accessed April 21, 2021. http://hdl.handle.net/11343/38008.

MLA Handbook (7^th Edition):

CHEN, YIQUN. “Agent-based recreation experiences simulation in a 3D virtual environment.” 2013. Web. 21 Apr 2021.

Vancouver:

CHEN Y. Agent-based recreation experiences simulation in a 3D virtual environment. [Internet] [Doctoral dissertation]. University of Melbourne; 2013. [cited 2021 Apr 21]. Available from: http://hdl.handle.net/11343/38008.

Council of Science Editors:

CHEN Y. Agent-based recreation experiences simulation in a 3D virtual environment. [Doctoral Dissertation]. University of Melbourne; 2013. Available from: http://hdl.handle.net/11343/38008

New Jersey Institute of Technology

21. Mayer, Julia M. Mediating chance encounters through opportunistic social matching.

Degree: PhD, Information Systems, 2016, New Jersey Institute of Technology

URL: https://digitalcommons.njit.edu/dissertations/74

► Chance encounters, the unintended meeting between people unfamiliar with each other, serve as an important social lubricant helping people to create new social ties,… (more)

▼ Chance encounters, the unintended meeting between people unfamiliar with each other, serve as an important social lubricant helping people to create new social ties, such as making new friends or finding an activity, study or collaboration partner. Unfortunately, social barriers often prevent chance encounters in environments where people do not know each other and people have to rely on serendipity to meet or be introduced to interesting people around them. Little is known about the underlying dynamics of chance encounters and how systems could utilize contextual data to mediate chance encounters. This dissertation addresses this gap in research literature by exploring the design space of opportunistic social matching systems that aim to introduce relevant people to each other in the opportune moment and the opportune place in order to encourage face-to-face interaction. A theoretical framework of relational, social and personal context as predictors of encounter opportunities is proposed and validated through a mixed method approach using interviews, experience sampling and a field study of a design prototype. Key contributions of the field interview study (n=58) include novel context-aware social matching concepts such as: sociability of others as an indicator of opportune social context; activity involvement as an indicator of opportune personal context; and contextual rarity as an indicator of opportune relational context. The following study combining Experience Sampling Method (ESM) and participant interviews extends prior research on social matching by providing an empirical foundation for the design of opportunistic social matching systems. A generalized linear mixed model analysis (n=1781) shows that personal context (mood and busyness) together with the sociability of others nearby are the strongest predictors of people’s interest in a social match. Interview findings provide novel approaches on how to operationalize relational context based on social network rarity and discoverable rarity. Moreover, insights from this study highlight that additional meta-information about user interests is needed to operationalize relational context, such as users’ passion level for an interest and their skill levels for an activity. Based on these findings, the novel design concept of passive context-awareness for social matching is put forward. In the last study, <em>Encount’r, </em>an instantiation of an opportunistic social matching system, is designed and evaluated through a field study and participant interviews. A large-scale user profiling survey provides baseline rarity measures to operationalize relational context using rarity, passion levels, skills, needs, and offers. Findings show that attribute type, computed attribute rarity, self-reported passion levels for interest, and response time are associated with people’s interest in a match opportunity. Moreover, this study extends prior work by showing how the concept of passive context-awareness for opportunistic social… Advisors/Committee Members: Quentin Jones, Starr Roxanne Hiltz, Cristian Borcea.

Subjects/Keywords: Social matching; Context-aware computing; Social reccommender system; Location-based services; Chance encounters; Databases and Information Systems; Management Information Systems

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APA (6^th Edition):

Mayer, J. M. (2016). Mediating chance encounters through opportunistic social matching. (Doctoral Dissertation). New Jersey Institute of Technology. Retrieved from https://digitalcommons.njit.edu/dissertations/74

Chicago Manual of Style (16^th Edition):

Mayer, Julia M. “Mediating chance encounters through opportunistic social matching.” 2016. Doctoral Dissertation, New Jersey Institute of Technology. Accessed April 21, 2021. https://digitalcommons.njit.edu/dissertations/74.

MLA Handbook (7^th Edition):

Mayer, Julia M. “Mediating chance encounters through opportunistic social matching.” 2016. Web. 21 Apr 2021.

Vancouver:

Mayer JM. Mediating chance encounters through opportunistic social matching. [Internet] [Doctoral dissertation]. New Jersey Institute of Technology; 2016. [cited 2021 Apr 21]. Available from: https://digitalcommons.njit.edu/dissertations/74.

Council of Science Editors:

Mayer JM. Mediating chance encounters through opportunistic social matching. [Doctoral Dissertation]. New Jersey Institute of Technology; 2016. Available from: https://digitalcommons.njit.edu/dissertations/74

Florida International University

22. Shahid, Abdur Bin. Trajectory Privacy Preservation and Lightweight Blockchain Techniques for Mobility-Centric IoT.

Degree: PhD, Computer Science, 2019, Florida International University

URL: https://digitalcommons.fiu.edu/etd/4308 ; FIDC008855

► Various research efforts have been undertaken to solve the problem of trajectory privacy preservation in the Internet of Things (IoT) of resource-constrained mobile devices.… (more)

▼ Various research efforts have been undertaken to solve the problem of trajectory privacy preservation in the Internet of Things (IoT) of resource-constrained mobile devices. Most attempts at resolving the problem have focused on the centralized model of IoT, which either impose high delay or fail against a privacy-invading attack with long-term trajectory observation. These proposed solutions also fail to guarantee location privacy for trajectories with both geo-tagged and non-geo-tagged data, since they are designed for geo-tagged trajectories only. While a few blockchain-based techniques have been suggested for preserving trajectory privacy in decentralized model of IoT, they require large storage capacity on resource-constrained devices and can only provide conditional privacy when a set of authorities governs the blockchain. This dissertation addresses these challenges to develop efficient trajectory privacy-preservation and lightweight blockchain techniques for mobility-centric IoT. We develop a pruning-based technique by quantifying the relationship between trajectory privacy and delay for real-time geo-tagged queries. This technique yields higher trajectory privacy with a reduced delay than contemporary techniques while preventing a long-term observation attack. We extend our study with the consideration of the presence of non-geo-tagged data in a trajectory. We design an attack model to show the spatiotemporal correlation between the geo-tagged and non-geo-tagged data which undermines the privacy guarantee of existing techniques. In response, we propose a methodology that considers the spatial distribution of the data in trajectory privacy-preservation and improves existing solutions, in privacy and usability. With respect to blockchain, we design and implement one of the first blockchain storage management techniques utilizing the mobility of the devices. This technique reduces the required storage space of a blockchain and makes it lightweight for resource-constrained mobile devices. To address the trajectory privacy challenges in an authority-based blockchain under the short-range communication constraints of the devices, we introduce a silence-based one of the first technique to establish a balance between trajectory privacy and blockchain utility. The designed trajectory privacy- preservation techniques we established are light- weight and do not require an intermediary to guarantee trajectory privacy, thereby providing practical and efficient solution for different mobility-centric IoT, such as mobile crowdsensing and Internet of Vehicles. Advisors/Committee Members: Niki Pissinou, Sundaraja Sitharama Iyengar, Deng Pan, Kang K. Yen, Leonardo Bobadilla.

Subjects/Keywords: Internet of Things; Mobile Computing; Location-Based Social Network; Location Privacy; Blockchain; Lightweight; Mobile Sensor; Spatial; Temporal; Storage; Databases and Information Systems; Data Storage Systems; Information Security

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APA (6^th Edition):

Shahid, A. B. (2019). Trajectory Privacy Preservation and Lightweight Blockchain Techniques for Mobility-Centric IoT. (Doctoral Dissertation). Florida International University. Retrieved from https://digitalcommons.fiu.edu/etd/4308 ; FIDC008855

Chicago Manual of Style (16^th Edition):

Shahid, Abdur Bin. “Trajectory Privacy Preservation and Lightweight Blockchain Techniques for Mobility-Centric IoT.” 2019. Doctoral Dissertation, Florida International University. Accessed April 21, 2021. https://digitalcommons.fiu.edu/etd/4308 ; FIDC008855.

MLA Handbook (7^th Edition):

Shahid, Abdur Bin. “Trajectory Privacy Preservation and Lightweight Blockchain Techniques for Mobility-Centric IoT.” 2019. Web. 21 Apr 2021.

Vancouver:

Shahid AB. Trajectory Privacy Preservation and Lightweight Blockchain Techniques for Mobility-Centric IoT. [Internet] [Doctoral dissertation]. Florida International University; 2019. [cited 2021 Apr 21]. Available from: https://digitalcommons.fiu.edu/etd/4308 ; FIDC008855.

Council of Science Editors:

Shahid AB. Trajectory Privacy Preservation and Lightweight Blockchain Techniques for Mobility-Centric IoT. [Doctoral Dissertation]. Florida International University; 2019. Available from: https://digitalcommons.fiu.edu/etd/4308 ; FIDC008855

University of St. Andrews

23. Zhao, Yuchen. Recommending privacy preferences in location-sharing services.

Degree: 2017, University of St. Andrews

URL: http://hdl.handle.net/10023/11055

► Location-sharing services have become increasingly popular with the proliferation of smartphones and online social networks. People share their locations with each other to record their… (more)

Subjects/Keywords: Location-based services; LBS; Location-sharing services; LSS; Recommender systems; User studies; Privacy preferences; User acceptance; Opportunistic networks; Security; Shilling attack; Reputation systems; TK5105.65Z5

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APA (6^th Edition):

Zhao, Y. (2017). Recommending privacy preferences in location-sharing services. (Doctoral Dissertation). University of St. Andrews. Retrieved from http://hdl.handle.net/10023/11055

Chicago Manual of Style (16^th Edition):

Zhao, Yuchen. “Recommending privacy preferences in location-sharing services.” 2017. Doctoral Dissertation, University of St. Andrews. Accessed April 21, 2021. http://hdl.handle.net/10023/11055.

MLA Handbook (7^th Edition):

Zhao, Yuchen. “Recommending privacy preferences in location-sharing services.” 2017. Web. 21 Apr 2021.

Vancouver:

Zhao Y. Recommending privacy preferences in location-sharing services. [Internet] [Doctoral dissertation]. University of St. Andrews; 2017. [cited 2021 Apr 21]. Available from: http://hdl.handle.net/10023/11055.

Council of Science Editors:

Zhao Y. Recommending privacy preferences in location-sharing services. [Doctoral Dissertation]. University of St. Andrews; 2017. Available from: http://hdl.handle.net/10023/11055

University of Montana

24. Erbach, Kurt. Coordinate systems in Gã.

Degree: MA, 2014, University of Montana

URL: https://scholarworks.umt.edu/etd/4289

► This thesis presents a comprehensive description and analysis of Gã coordinate systems. Gã is spoken primarily in Accra, the capital of Ghana, and no previous… (more)

Subjects/Keywords: frame of reference; coordinate system; location; semantics; linguistics; Gã; NIger-Congo

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APA (6^th Edition):

Erbach, K. (2014). Coordinate systems in Gã. (Masters Thesis). University of Montana. Retrieved from https://scholarworks.umt.edu/etd/4289

Chicago Manual of Style (16^th Edition):

Erbach, Kurt. “Coordinate systems in Gã.” 2014. Masters Thesis, University of Montana. Accessed April 21, 2021. https://scholarworks.umt.edu/etd/4289.

MLA Handbook (7^th Edition):

Erbach, Kurt. “Coordinate systems in Gã.” 2014. Web. 21 Apr 2021.

Vancouver:

Erbach K. Coordinate systems in Gã. [Internet] [Masters thesis]. University of Montana; 2014. [cited 2021 Apr 21]. Available from: https://scholarworks.umt.edu/etd/4289.

Council of Science Editors:

Erbach K. Coordinate systems in Gã. [Masters Thesis]. University of Montana; 2014. Available from: https://scholarworks.umt.edu/etd/4289

Hong Kong University of Science and Technology

25. Lin, Wenbin CSE. Indoor localization and fingerprint update with altered access points.

Degree: 2015, Hong Kong University of Science and Technology

URL: http://repository.ust.hk/ir/Record/1783.1-94679 ; https://doi.org/10.14711/thesis-b1514722 ; http://repository.ust.hk/ir/bitstream/1783.1-94679/1/th_redirect.html

► Wi-Fi fingerprinting is a promising approach for indoor localization due to its ease of deployment and high accuracy. As the signal from access points (APs)… (more)

Subjects/Keywords: Wireless localization ; Location-based services

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APA (6^th Edition):

Lin, W. C. (2015). Indoor localization and fingerprint update with altered access points. (Thesis). Hong Kong University of Science and Technology. Retrieved from http://repository.ust.hk/ir/Record/1783.1-94679 ; https://doi.org/10.14711/thesis-b1514722 ; http://repository.ust.hk/ir/bitstream/1783.1-94679/1/th_redirect.html

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):

Lin, Wenbin CSE. “Indoor localization and fingerprint update with altered access points.” 2015. Thesis, Hong Kong University of Science and Technology. Accessed April 21, 2021. http://repository.ust.hk/ir/Record/1783.1-94679 ; https://doi.org/10.14711/thesis-b1514722 ; http://repository.ust.hk/ir/bitstream/1783.1-94679/1/th_redirect.html.

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

MLA Handbook (7^th Edition):

Lin, Wenbin CSE. “Indoor localization and fingerprint update with altered access points.” 2015. Web. 21 Apr 2021.

Vancouver:

Lin WC. Indoor localization and fingerprint update with altered access points. [Internet] [Thesis]. Hong Kong University of Science and Technology; 2015. [cited 2021 Apr 21]. Available from: http://repository.ust.hk/ir/Record/1783.1-94679 ; https://doi.org/10.14711/thesis-b1514722 ; http://repository.ust.hk/ir/bitstream/1783.1-94679/1/th_redirect.html.

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

Council of Science Editors:

Lin WC. Indoor localization and fingerprint update with altered access points. [Thesis]. Hong Kong University of Science and Technology; 2015. Available from: http://repository.ust.hk/ir/Record/1783.1-94679 ; https://doi.org/10.14711/thesis-b1514722 ; http://repository.ust.hk/ir/bitstream/1783.1-94679/1/th_redirect.html

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

Queens University

26. Kurczak, John, Jason. The use of ambient audio to increase safety and immersion in location-based games .

Degree: Computing, 2012, Queens University

URL: http://hdl.handle.net/1974/6997

► The purpose of this thesis is to propose an alternative type of interface for mobile software being used while walking or running. Our work addresses… (more)

▼ The purpose of this thesis is to propose an alternative type of interface for mobile software being used while walking or running. Our work addresses the problem of visual user interfaces for mobile software be- ing potentially unsafe for pedestrians, and not being very immersive when used for location-based games. In addition, location-based games and applications can be dif- ficult to develop when directly interfacing with the sensors used to track the user’s location. These problems need to be addressed because portable computing devices are be- coming a popular tool for navigation, playing games, and accessing the internet while walking. This poses a safety problem for mobile users, who may be paying too much attention to their device to notice and react to hazards in their environment. The difficulty of developing location-based games and other location-aware applications may significantly hinder the prevalence of applications that explore new interaction techniques for ubiquitous computing. We created the TREC toolkit to address the issues with tracking sensors while developing location-based games and applications. We have developed functional location-based applications with TREC to demonstrate the amount of work that can be saved by using this toolkit.In order to have a safer and more immersive alternative to visual interfaces, we have developed ambient audio interfaces for use with mobile applications. Ambient audio uses continuous streams of sound over headphones to present information to mobile users without distracting them from walking safely. In order to test the effectiveness of ambient audio, we ran a study to compare ambient audio with handheld visual interfaces in a location-based game. We compared players’ ability to safely navigate the environment, their sense of immersion in the game, and their performance at the in-game tasks. We found that ambient audio was able to significantly increase players’ safety and sense of immersion compared to a visual interface, while players performed signifi- cantly better at the game tasks when using the visual interface. This makes ambient audio a legitimate alternative to visual interfaces for mobile users when safety and immersion are a priority.

Subjects/Keywords: location-based games ; ambient interfaces

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APA (6^th Edition):

Kurczak, John, J. (2012). The use of ambient audio to increase safety and immersion in location-based games . (Thesis). Queens University. Retrieved from http://hdl.handle.net/1974/6997

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):

Kurczak, John, Jason. “The use of ambient audio to increase safety and immersion in location-based games .” 2012. Thesis, Queens University. Accessed April 21, 2021. http://hdl.handle.net/1974/6997.

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

MLA Handbook (7^th Edition):

Kurczak, John, Jason. “The use of ambient audio to increase safety and immersion in location-based games .” 2012. Web. 21 Apr 2021.

Vancouver:

Kurczak, John J. The use of ambient audio to increase safety and immersion in location-based games . [Internet] [Thesis]. Queens University; 2012. [cited 2021 Apr 21]. Available from: http://hdl.handle.net/1974/6997.

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

Council of Science Editors:

Kurczak, John J. The use of ambient audio to increase safety and immersion in location-based games . [Thesis]. Queens University; 2012. Available from: http://hdl.handle.net/1974/6997

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

Rutgers University

27. Hu, Wangsu, 1989-. Dynamic origin-destination estimation with location-based social networking data: exploring urban travel demand sensor.

Degree: PhD, Civil and Environmental Engineering, 2019, Rutgers University

URL: https://rucore.libraries.rutgers.edu/rutgers-lib/60167/

►

The emergence of Transportation Big Data provides rich information for estimating and predicting urban travel demand patterns. The traditional travel demand sensors involve labor-intensive survey… (more)

▼

The emergence of Transportation Big Data provides rich information for estimating and predicting urban travel demand patterns. The traditional travel demand sensors involve labor-intensive survey data, traffic detector data for assignment model calibration, vehicle re-identification data from scattered Bluetooth, Wifi, or License plate readers, or aggregated cellphone activity data used in existing dynamic Origin-Destination estimation models or applications. With the growing number of mobile devices with GPS units and improvement in WLT technologies, the Location-Based Social Network (LBSN) data is an emerging travel demand data source. LBSN data recorded check-in or tweeting activities of massive users at different points of interests (POIs). The wide-range of POIs ensure the dense coverage of the main urban areas and the user-confirmed POI information provides the much-needed trip purpose information not available in other data sources. Meanwhile, the LBSN data has the advantages of passive secondary data collection usually not for the purpose of travel surveys, and anonymization. Despite the above advantages, LBSN data is not without its limitations for estimating urban travel demand, as well as dynamic OD estimation for proactive urban congestion mitigation and operations. First, LBSN can have a systematic temporal error for estimating travel demand. The LBSN activities do not always mimic travel activities throughout the day. Second, LBSN data includes a sampling bias for different population groups and venue types. Third, the stochastic nature of human activities, especially the POI arriving patterns are critical for travel demand estimation. The existing approaches to the LBSN-based travel demand analysis have suffered from those limitations on deriving the dynamic travel demand patterns. Recent development in spatial-temporal characteristics provides the opportunities to identify and quantify the correlation between LSBN-based travel activity and urban travel demand pattern. In this dissertation, a novel set of travel demand models based on the LBSN data is proposed and tested. The research starts with a comprehensive review of the existing travel demand data collection methods and the travel demand modeling. Then we introduce a profiling method to infer the functionality of city zones based on the POI categorical distribution and local mobility patterns. By classifying zones by these zone topics, we can now analyze interactions between zones of different functionality. Thirdly, by conducting zonal time-of-day variation modeling on the LBSN check-in arrivals, a new stochastic point process based trip arrivals estimation is developed. The output is applied to the input of a temporal delay based trip distribution model for deriving dynamic OD patterns. And the model calibration and applications are also provided and discussed. The evaluation results illustrate the promising benefits of applying LBSN Data in urban travel demand modeling.

Advisors/Committee Members: Jin, Jing (chair), Liu, Xiang (internal member), Gong, Jie (internal member), Di, Xuan (outside member), Xiong, Hui (outside member), School of Graduate Studies.

Subjects/Keywords: Location-based services; Multiscale modeling

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APA (6^th Edition):

Hu, Wangsu, 1. (2019). Dynamic origin-destination estimation with location-based social networking data: exploring urban travel demand sensor. (Doctoral Dissertation). Rutgers University. Retrieved from https://rucore.libraries.rutgers.edu/rutgers-lib/60167/

Chicago Manual of Style (16^th Edition):

Hu, Wangsu, 1989-. “Dynamic origin-destination estimation with location-based social networking data: exploring urban travel demand sensor.” 2019. Doctoral Dissertation, Rutgers University. Accessed April 21, 2021. https://rucore.libraries.rutgers.edu/rutgers-lib/60167/.

MLA Handbook (7^th Edition):

Hu, Wangsu, 1989-. “Dynamic origin-destination estimation with location-based social networking data: exploring urban travel demand sensor.” 2019. Web. 21 Apr 2021.

Vancouver:

Hu, Wangsu 1. Dynamic origin-destination estimation with location-based social networking data: exploring urban travel demand sensor. [Internet] [Doctoral dissertation]. Rutgers University; 2019. [cited 2021 Apr 21]. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/60167/.

Council of Science Editors:

Hu, Wangsu 1. Dynamic origin-destination estimation with location-based social networking data: exploring urban travel demand sensor. [Doctoral Dissertation]. Rutgers University; 2019. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/60167/

Loughborough University

28. Ahmad, Bilal. A component-based virtual engineering approach to PLC code generation for automation systems.

Degree: PhD, 2014, Loughborough University

URL: http://hdl.handle.net/2134/16060

► In recent years, the automotive industry has been significantly affected by a number of challenges driven by globalisation, economic fluctuations, environmental awareness and rapid technological… (more)

Subjects/Keywords: 629.8; Component-based automation; Automatic code generation; PLC programming; Virtual commissioning; Control systems; Assembly automation.

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APA (6^th Edition):

Ahmad, B. (2014). A component-based virtual engineering approach to PLC code generation for automation systems. (Doctoral Dissertation). Loughborough University. Retrieved from http://hdl.handle.net/2134/16060

Chicago Manual of Style (16^th Edition):

Ahmad, Bilal. “A component-based virtual engineering approach to PLC code generation for automation systems.” 2014. Doctoral Dissertation, Loughborough University. Accessed April 21, 2021. http://hdl.handle.net/2134/16060.

MLA Handbook (7^th Edition):

Ahmad, Bilal. “A component-based virtual engineering approach to PLC code generation for automation systems.” 2014. Web. 21 Apr 2021.

Vancouver:

Ahmad B. A component-based virtual engineering approach to PLC code generation for automation systems. [Internet] [Doctoral dissertation]. Loughborough University; 2014. [cited 2021 Apr 21]. Available from: http://hdl.handle.net/2134/16060.

Council of Science Editors:

Ahmad B. A component-based virtual engineering approach to PLC code generation for automation systems. [Doctoral Dissertation]. Loughborough University; 2014. Available from: http://hdl.handle.net/2134/16060

California State University – San Bernardino

29. Nellaiappan, Kalaivani. Gobuddy - Android mobile application.

Degree: MSin Computer Science, School of Computer Science and Engineering, 2011, California State University – San Bernardino

URL: https://scholarworks.lib.csusb.edu/etd-project/3323

► The purpose of this application is to serve the end user of an Android Smart phone, with reliable, instantaneous and location based information on places… (more)

Subjects/Keywords: Application software Development; Mobile geographic information systems; Global Positioning System; Wireless communication systems; GPS receivers; Location-based services; Mobile computing; Smartphones Programming; Application software Development; Global Positioning System; GPS receivers; Location-based services; Mobile computing; Mobile geographic information systems; Wireless communication systems.; Software Engineering

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APA (6^th Edition):

Nellaiappan, K. (2011). Gobuddy - Android mobile application. (Thesis). California State University – San Bernardino. Retrieved from https://scholarworks.lib.csusb.edu/etd-project/3323

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):

Nellaiappan, Kalaivani. “Gobuddy - Android mobile application.” 2011. Thesis, California State University – San Bernardino. Accessed April 21, 2021. https://scholarworks.lib.csusb.edu/etd-project/3323.

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

MLA Handbook (7^th Edition):

Nellaiappan, Kalaivani. “Gobuddy - Android mobile application.” 2011. Web. 21 Apr 2021.

Vancouver:

Nellaiappan K. Gobuddy - Android mobile application. [Internet] [Thesis]. California State University – San Bernardino; 2011. [cited 2021 Apr 21]. Available from: https://scholarworks.lib.csusb.edu/etd-project/3323.

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

Council of Science Editors:

Nellaiappan K. Gobuddy - Android mobile application. [Thesis]. California State University – San Bernardino; 2011. Available from: https://scholarworks.lib.csusb.edu/etd-project/3323

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

Georgia Tech

30. Stuntebeck, Erich Peter. An analysis of the domestic power line infrastructure to support indoor real-time localization.

Degree: PhD, Electrical and Computer Engineering, 2010, Georgia Tech

URL: http://hdl.handle.net/1853/34678

► The vision of ubiquitous computing is to seamlessly integrate information processing into everyday objects and activities. Part of this integration is an awareness on the… (more)

▼ The vision of ubiquitous computing is to seamlessly integrate information processing into everyday objects and activities. Part of this integration is an awareness on the part of a system of its user's context. Context can be composed of several variables – such as a user's current activity, goals, or state of mind – but location (both past and present) is almost always a key component. Determining location outdoors has become quite simple and pervasive with today's low-cost handheld Global Positioning System (GPS) receivers. Technologies enabling the location of people and objects to be determined while indoors, however, have lagged due to their extensive infrastructure requirements and associated cost. Just as GPS receivers utilize radio signals from satellites to triangulate their position, an indoor real-time locating system (RTLS) must also make use of some feature of the environment to determine the location of mobile units. Since the signal from GPS satellites is not sufficiently strong to penetrate the structure of a building, indoor RTLS systems must either use some existing feature of the environment or generate a new one. This typically requires a large amount of infrastructure (e.g. specialized RF receivers, additional 802.11 access points, RFID readers, etc.) to be deployed, making indoor RTLSs impractical for the home. While numerous techniques have been proposed for locating people and objects within a building, none of these has yet proven to be a viable option in terms of cost, complexity of installation, and accuracy for home users. This dissertation builds on work by Patel et al. in which the home power lines are used to radiate a low-frequency wireless RF signal that mobile tags use for location fingerprinting. Leveraging the existing power line permits this system to operate on far less additional infrastructure than existing solutions such as cellular (GSM and CDMA), 802.11b/g, and FM radio based systems. The contributions of this research to indoor power line-based RTLS are threefold. First, I examine the temporal stability of a power line based RTLS system's output. Fingerprinting-based RTLS relies upon some feature of the environment, such as the amplitude of an RF signal, to be stable over time at a particular location (temporal stability), but to change in space (spatial differentiability). I show that a power line-based RTLS can be made much more resistant to temporal instability in individual fingerprint components by utilizing a wide-band RF fingerprint. Next, I directly compare the temporal stability of the raw features used by various fingerprinting based indoor RTLSs, such as cellular, 802.11b/g, and FM radio. In doing so, I show that a power line based indoor RTLS has an inherent advantage in temporal stability over these other methods. Finally, I characterize the power line as a receiving antenna for low-powered wireless devices within the home, thus allowing the power line to not only transmit the RF signals used for fingerprinting, but also to receive the sensed… Advisors/Committee Members: Abowd, Gregory (Committee Chair), Blough, Douglas (Committee Member), Grijalva, Santiago (Committee Member), Patel, Shwetak (Committee Member), Riley, George (Committee Member).

Subjects/Keywords: Location fingerprinting; Indoor localization; Electric lines; Location-based services; Mobile geographic information systems

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APA (6^th Edition):

Stuntebeck, E. P. (2010). An analysis of the domestic power line infrastructure to support indoor real-time localization. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/34678

Chicago Manual of Style (16^th Edition):

Stuntebeck, Erich Peter. “An analysis of the domestic power line infrastructure to support indoor real-time localization.” 2010. Doctoral Dissertation, Georgia Tech. Accessed April 21, 2021. http://hdl.handle.net/1853/34678.

MLA Handbook (7^th Edition):

Stuntebeck, Erich Peter. “An analysis of the domestic power line infrastructure to support indoor real-time localization.” 2010. Web. 21 Apr 2021.

Vancouver:

Stuntebeck EP. An analysis of the domestic power line infrastructure to support indoor real-time localization. [Internet] [Doctoral dissertation]. Georgia Tech; 2010. [cited 2021 Apr 21]. Available from: http://hdl.handle.net/1853/34678.

Council of Science Editors:

Stuntebeck EP. An analysis of the domestic power line infrastructure to support indoor real-time localization. [Doctoral Dissertation]. Georgia Tech; 2010. Available from: http://hdl.handle.net/1853/34678

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