Publications (8)0 Total impact
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Article: Quality of Experience-LAOS: create once, use many, use anywhere.
IJLT. 01/2007; 3:209-229. -
Chapter: The Value of QoE-Based Adaptation Approach in Educational Hypermedia: Empirical Evaluation
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ABSTRACT: This paper reports the results of a comparison-based empirical study on the applicability of the end-user Quality of Experience-based content adaptation mechanism in adaptive educational hypermedia. The focus of the paper will be the experiment itself: the initial settings, testing scenarios and the results. We will show that for low bit rate connections the QoE-based adaptation decreases study session time, information processing time per page and the number of re-visits to a page, it maintains similar learning outcomes while also improving the user quality of experience and satisfaction with the system. Finally we will comment on the results and interpret them.06/2006: pages 121-130; -
Article: End-User Quality of Experience Oriented Adaptive E-learning System.
J. Digit. Inf. 01/2006; 7. -
Conference Proceeding: Fine grained content-based adaptation mechanism for providing high end-user quality of experience with adaptive hypermedia systems.
Proceedings of the 15th international conference on World Wide Web, WWW 2006, Edinburgh, Scotland, UK, May 23-26, 2006; 01/2006 -
Article: An Adaptive Web Server Application
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ABSTRACT: The Web is continually increasing in size and importance and so does the interest of the Web server administrators to maximize their users' satisfaction, while efficiently using the existing resources. The paper proposes an adaptive Web server application that tries to increase the performance of the Web server that hosts a Web site, as seen from the clients' point of view. The adaptiveness is based on the customization of the Web site in a manner that emphasizes the interests of the clients. Our tests show that both the user satisfaction and the server performance are improved.08/2002; -
Article: A Client-Orientated Dynamic Web Server
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ABSTRACT: The cost of computer systems has decreased continuously in recent years, leading to an exponential growth in the number of computer users. In such an environment, more and more Web servers have been created offering many types of information. As a result Internet traffic has grown significantly, affecting the quality of the services offered by the Web servers. We propose a new approach for designing Web servers, which takes into account client requirements and constraints, and whose implementation is based on Java servlet and applet technology. This client-orientated Web server classifies each client into one of a number of pre-defined categories. The Web page generated for a client then depends on the client's current category. A Web page generated in this way may differ from one generated for another client in its content, number of images, graphic design and structure. 1.08/2001; -
Article: The Influence of Web Page Images on the Performance of Web Servers
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ABSTRACT: . In recent years World Wide Web traffic has shown phenomenal growth. The main causes are the continuing increase in the number of people navigating the Internet and the creation of millions of new Web sites. In addition, the structure of Web pages has become more complex, including not only HTML files but also other components. This has affected both the download times of Web pages and the network bandwidth required. The goal of our research is to monitor the download times of Web pages from different Web sites, and to find out to what extent the images contained in these Web pages influence these times. We also suggest some possible ways of decreasing the bandwidth requirements and download times of complex Web pages. 105/2001; -
Article: Authoring model for quality of experience-aware adaptive hypermedia systems
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ABSTRACT: This paper presents a novel authoring framework for Quality of Ex-perience (QoE) aware Adaptive Hypermedia Systems. It extends the LAOS au-thoring model in order to consider delivery performance issues. The paper formalises and exemplifies the newly proposed QoE extensions for the LAOS Adaptation and Presentation Models that include QoE Characteristics and QoE Rules layers.
