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The Virtual University, Pakistan’s first University based completely on modern Information and Communication Technologies, was established by the Government as a public sector, not-for-profit institution with a clear mission: to provide extremely affordable world class education to aspiring students all over the country.

Using free-to-air satellite television broadcasts and the Internet, the Virtual University allows students to follow its rigorous programs regardless of their physical locations. It thus aims at alleviating the lack of capacity in the existing universities while simultaneously tackling the acute shortage of qualified professors in the country. By identifying the top Professors of the country, regardless of their institutional affiliations, and requesting them to develop and deliver hand-crafted courses, the Virtual University aims at providing the very best courses to not only its own students but also to students of all other universities in the country.

Selection of Web Services by Using Diversified Service Rank

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Author: AYAZ NAZIR AHMAD


Citable URI : https://vspace.vu.edu.pk/detail.aspx?id=32

Publisher : Virtual University of Pakistan

Date Issued: 7/11/2014 12:00:00 AM


Abstract

Traditional techniques for web service discovery and selection mostly rely on string matching and/or semantic logic-based matching. They are generally developed on service description and functional attributes which are exposed in service advertisement. The selection is made from the result output which is typically presented in order of their ranks primarily based on degree of match of functional or operational parameters. The Quality of Service (QoS) attributes such as service performance, execution duration, reliability, reputation, popularity, security, access rights, availability, success rate, price etc and user preferences are often ignored in the query. Moreover, it is very difficult for the requester or any software agent to select the best service out of many potential candidates from the search result. This paper proposes a framework that takes into account QoS attributes along with user preferences and devise an algorithm namely Diversified Service Rank (DSR) that re-ranks top k web services in the search result, this helps service requesters in prompt selection and composition of web services.


URI : https://vspace.vu.edu.pk/details.aspx?id=32

Citation: Ahmad, A. N. (2014). Selection of Web Services by Using Diversified Service Rank. Virtual University of Pakistan, (Lahore, Pakistan).

Version : Final Version

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