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Efficient algorithms for combinatorial auctions with volume discounts arising in web service composition

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2 Author(s)
Prashanth, B. ; Comput. Sci. & Autom., Indian Inst. of Sci., Bangalore ; Narahari, Y.

Web services are now a key ingredient of software services offered by software enterprises. Many standardized web services are now available as commodity offerings from web service providers. An important problem for a web service requester is the web service composition problem which involves selecting the right mix of web service offerings to execute an end-to-end business process. Web service offerings are now available in bundled form as composite web services and more recently, volume discounts are also on offer, based on the number of executions of web services requested. In this paper, we develop efficient algorithms for the web service composition problem in the presence of composite web service offerings and volume discounts. We model this problem as a combinatorial auction with volume discounts. We first develop efficient polynomial time algorithms when the end-to-end service involves a linear workflow of web services. Next we develop efficient polynomial time algorithms when the end-to-end service involves a tree workflow of web services.

Published in:

Automation Science and Engineering, 2008. CASE 2008. IEEE International Conference on

Date of Conference:

23-26 Aug. 2008