@incollection{alrifai2009scalable, abstract = {QoS-based service selection aims at finding the best component services that satisfy the end-to-end quality requirements. The problem can be modeled as a multi-dimension multi-choice 0-1 knapsack problem, which is known as NP-hard. Recently published solutions propose using linear programming techniques to solve the problem. However, the poor scalability of linear program solving methods restricts their applicability to small-size problems and renders them inappropriate for dynamic applications with run-time requirements. In this paper, we address this problem and propose a scalable QoS computation approach based on a heuristic algorithm, which decomposes the optimization problem into small sub-problems that can be solved more efficiently than the original problem. Experimental evaluations show that near-to-optimal solutions can be found using our algorithm much faster than using linear programming methods.}, added-at = {2014-03-10T18:05:17.000+0100}, author = {Alrifai, Mohammad and Risse, Thomas and Dolog, Peter and Nejdl, Wolfgang}, biburl = {https://www.bibsonomy.org/bibtex/26f7b9f634047f585b2d5c3637cadb4fa/trisse69}, booktitle = {Service-Oriented Computing – ICSOC 2008 Workshops}, doi = {10.1007/978-3-642-01247-1_20}, editor = {Feuerlicht, George and Lamersdorf, Winfried}, interhash = {a77ab42ce8aa5c812c46d212d00f778d}, intrahash = {6f7b9f634047f585b2d5c3637cadb4fa}, isbn = {978-3-642-01246-4}, keywords = {Webservice myown qos scalable}, pages = {190-199}, publisher = {Springer Berlin Heidelberg}, series = {Lecture Notes in Computer Science}, timestamp = {2014-11-18T16:56:13.000+0100}, title = {A Scalable Approach for QoS-Based Web Service Selection}, url = {http://www.l3s.de/~risse/pub/QoSCSOA.pdf}, volume = 5472, year = 2009 }