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You searched for subject:(Optimal Service Selection). Showing records 1 – 3 of 3 total matches.

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Linnaeus University

1. Hauch, Manuel David. Using Geographic Location for Optimal Service Selection.

Degree: Computer Science, 2016, Linnaeus University

Nowadays, a multitude of functionally equal web services are available. By thisbroad offer, the need of a service recommendation based on non-functional characteristics(e.g. price, response time, availability) is increasing. The static ServiceLevel Agreements (SLAs) of service providers cannot suffice this need. SLAs arenot reliable enough, due to the fact that they do not cover the dynamic performanceand quality changes of services during their lifetime. This bachelor’s thesis waswritten within a research project of the Linnaeus University in Sweden and the KarlsruheUniversity of Applied Science in Germany. The goal of this research projectis to eliminate the issues as described above. For this reason, a framework for anoptimized service selection was developed. Instead of using the static SLAs, measurementsof each service call are taken. On the basis of the measurements and therequirements of the consumer, the framework then provides an automated best-fitservice selection. The purpose of this thesis is to involve the geographic location of each serviceconsumer in the automated service selection. Therefore, a mobile app was developedto get a sufficient amount of real world test data. This app measures service calls andadditionally records the geographic location of the user. Based on the geographiclocation, the collected measurement data then were grouped into regions. Thereby,it could be shown that the geographic location of the user can be used to improve theoptimal service selection.

Service-Oriented Computing

Subjects/Keywords: Optimal Service Selection; Service Recommendation; Service Level Achievements; Geographic Location

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

APA (6th Edition):

Hauch, M. D. (2016). Using Geographic Location for Optimal Service Selection. (Thesis). Linnaeus University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-48652

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

Chicago Manual of Style (16th Edition):

Hauch, Manuel David. “Using Geographic Location for Optimal Service Selection.” 2016. Thesis, Linnaeus University. Accessed December 14, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-48652.

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

MLA Handbook (7th Edition):

Hauch, Manuel David. “Using Geographic Location for Optimal Service Selection.” 2016. Web. 14 Dec 2019.

Vancouver:

Hauch MD. Using Geographic Location for Optimal Service Selection. [Internet] [Thesis]. Linnaeus University; 2016. [cited 2019 Dec 14]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-48652.

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

Council of Science Editors:

Hauch MD. Using Geographic Location for Optimal Service Selection. [Thesis]. Linnaeus University; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-48652

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

2. Aristomenopoulos, Georgios. Βέλτιστη ανάθεση χρηστών και διαμοιρασμός πόρων σε ετερογενή ασύρματα δίκτυα.

Degree: 2013, National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)

Today’s wireless networking environment heterogeneity, in terms of various accessnetworks with assorted architectural characteristics, has radically increased itscomplexity, raising scalability and compatibility issues. This thesis addresses theproblem of joint optimal multi-access multi-cell resource allocation over aheterogeneous integrated wireless network, where overlapping cells of various accesstechnologies (including CDMA, WLANs, e.t.c.) are assumed to assemble the wirelessenvironment. The goal is to find the optimal operation point, regarding mobile nodesto cells’ base stations (or access points) assignment, and corresponding resourceallocation that maximizes the network-wide revenue, in terms of users’ QoS-awareservice performance. Optimal and suboptimal mechanisms and their underlyingalgorithms accomplishing the latter goal are proposed, analyzed and evaluatedthrough modeling and simulation.Focus is placed on two directions, ranging from low complexity, easily applicableautonomic heuristic solutions of unverified optimality though, to distributed optimalsolutions, assuring the optimal operational point of the integrated network, under theburden of increased complexity and signaling.Specifically, our first approach is driven by the vision of future networkautonomics, focusing on implementing self-* functions for self-optimization and selfadaptationto context or situation driven behavior changes in the networkingenvironment, services or applications. In order to provide the required flexibility andfunctional scalability in the joint resource management process, we introduceautonomicity as the vehicle that allows the design of a novel autonomic frameworkthat maximizes overall integrated network’s revenue. The latter is accomplished byallowing mobile nodes and base stations to self-adapt and self-optimize their behaviorwith respect to the network selection and resource allocation processes.Our second approach, aiming at the global optimality of the integratedheterogeneous network, focuses on two diverse methodologies with respect to theaccess type and architectural design of the network. Specifically, initially the problemof distributed joint network selection and resource allocation in multi-access multicellheterogeneous wireless networks (CDMA/WLAN/OFDMA), is studied and analyzed. Moreover, the same problem is addressed in the case of two-tier CDMAMacrocell/Femtocell wireless networks. The goal is not only to satisfy users’ QoSprerequisites in the presence of co-tier and cross-tier interference, but also todetermine cells’ optimal coverage area, maximizing network-wide throughputperformance and mitigating intercell interference.Under all proposed schemes and in the light of users’ QoS requirements fulfillment,each methodology is analytically described and solutions are proposed, ensuring theseamless connectivity of the users and networks’ performance maximization.

Η παρούσα διδακτορική διατριβή πραγματεύεται το πρόβλημα της βέλτιστηςανάθεσης χρηστών και διαμοιρασμού πόρων σε ενοποιημένα ετερογενή…

Subjects/Keywords: Ετερογενή δίκτυα; Ποιότητα της υπηρεσίας; Βέλτιστη κατανομή πόρων δικτύου; Ανάθεση χρηστών σε δίκτυα; Θεωρία βελτιστοποίησης; Συναρτήσεις χρησιμότητας; Heterogeneous Networks,; Quality of service; Optimal resource allocation; Network selection; Optimization theory; Utility functions

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

APA (6th Edition):

Aristomenopoulos, G. (2013). Βέλτιστη ανάθεση χρηστών και διαμοιρασμός πόρων σε ετερογενή ασύρματα δίκτυα. (Thesis). National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ). Retrieved from http://hdl.handle.net/10442/hedi/39495

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

Chicago Manual of Style (16th Edition):

Aristomenopoulos, Georgios. “Βέλτιστη ανάθεση χρηστών και διαμοιρασμός πόρων σε ετερογενή ασύρματα δίκτυα.” 2013. Thesis, National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ). Accessed December 14, 2019. http://hdl.handle.net/10442/hedi/39495.

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

MLA Handbook (7th Edition):

Aristomenopoulos, Georgios. “Βέλτιστη ανάθεση χρηστών και διαμοιρασμός πόρων σε ετερογενή ασύρματα δίκτυα.” 2013. Web. 14 Dec 2019.

Vancouver:

Aristomenopoulos G. Βέλτιστη ανάθεση χρηστών και διαμοιρασμός πόρων σε ετερογενή ασύρματα δίκτυα. [Internet] [Thesis]. National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ); 2013. [cited 2019 Dec 14]. Available from: http://hdl.handle.net/10442/hedi/39495.

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

Council of Science Editors:

Aristomenopoulos G. Βέλτιστη ανάθεση χρηστών και διαμοιρασμός πόρων σε ετερογενή ασύρματα δίκτυα. [Thesis]. National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ); 2013. Available from: http://hdl.handle.net/10442/hedi/39495

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

3. Van Oers, B.J. A Packing Approach for the Early Stage Design of Service Vessels.

Degree: 2011, VSSD

Naval architects often say that every ship is a compromise between many conflicting requirements. This widely-held belief immediately raises the question as to what kind of ship and, therefore, what kind of compromise, would suit the ship owner’s interest best. The approach presented in this thesis aims to improve the early stage design process of service vessels by helping the naval architect to generate and explore a large and diverse set of three-dimensional ship designs. In turn, this set enables the thorough investigation of a wide range of different compromises before settling upon a well-founded –and a more competitive- ship design that reflects the most promising compromise and, as such, will be deemed desirable by its owner. The approach has four key features. Firstly, it uses a novel parametric ship description (based on `packing problems’) that can handle large and concurrent changes to the entire three-dimensional ship design, i.e., hull, superstructure, decks, bulkheads and the arrangement of systems in the ship can all change without human interaction. Secondly, it uses a search algorithm to generate a large and diverse set of ship designs that reflect a wide range of different compromises. Thirdly, the naval architect considers all feasible designs to gain insight in conflicting characteristics before selecting the most promising ship designs in a transparent manner. The selection can be based on objective and constraint values, as well as on the naval architect’s own engineering judgement. Fourthly, the naval architect takes all selection decisions to help instil the crucial sense of ownership for the ship designs that result from the selection process. This novel design approach has been applied successfully to design two types of service vessels: deep water drillships and frigates. It proved able to establish the design impact of variations in payload and performance requirements. Moreover, the resulting set of designs was subsequently used to illustrate how the naval architect can identify and select designs that excel at particular performances, such as sea-keeping. In summary, the approach is expected to improve the naval architect’s ability to identify promising ship designs early on, which should lead to the design of more competitive service vessels. Advisors/Committee Members: Stapersma, D., Hopman, J.J..

Subjects/Keywords: acceptance; arrangement; compromise decision; configuration; drillship; engineering judgement; feasible ship design; incomplete set of objectives; layout; naval architecture; optimisation algorithm; packing problem; parametric ship description; selection problem; service vessel; ship design; too optimal; trade-off; transparency; warship

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

APA (6th Edition):

Van Oers, B. J. (2011). A Packing Approach for the Early Stage Design of Service Vessels. (Doctoral Dissertation). VSSD. Retrieved from http://resolver.tudelft.nl/uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; urn:NBN:nl:ui:24-uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; urn:NBN:nl:ui:24-uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; http://resolver.tudelft.nl/uuid:6be7582c-63b1-477e-b836-87430bcfb43f

Chicago Manual of Style (16th Edition):

Van Oers, B J. “A Packing Approach for the Early Stage Design of Service Vessels.” 2011. Doctoral Dissertation, VSSD. Accessed December 14, 2019. http://resolver.tudelft.nl/uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; urn:NBN:nl:ui:24-uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; urn:NBN:nl:ui:24-uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; http://resolver.tudelft.nl/uuid:6be7582c-63b1-477e-b836-87430bcfb43f.

MLA Handbook (7th Edition):

Van Oers, B J. “A Packing Approach for the Early Stage Design of Service Vessels.” 2011. Web. 14 Dec 2019.

Vancouver:

Van Oers BJ. A Packing Approach for the Early Stage Design of Service Vessels. [Internet] [Doctoral dissertation]. VSSD; 2011. [cited 2019 Dec 14]. Available from: http://resolver.tudelft.nl/uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; urn:NBN:nl:ui:24-uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; urn:NBN:nl:ui:24-uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; http://resolver.tudelft.nl/uuid:6be7582c-63b1-477e-b836-87430bcfb43f.

Council of Science Editors:

Van Oers BJ. A Packing Approach for the Early Stage Design of Service Vessels. [Doctoral Dissertation]. VSSD; 2011. Available from: http://resolver.tudelft.nl/uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; urn:NBN:nl:ui:24-uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; urn:NBN:nl:ui:24-uuid:6be7582c-63b1-477e-b836-87430bcfb43f ; http://resolver.tudelft.nl/uuid:6be7582c-63b1-477e-b836-87430bcfb43f

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