QoS-aware web service selection based on self-organising migrating algorithm and fuzzy dominance
by Amal Halfaoui; Fethallah Hadjila; Fedoua Didi
International Journal of Computational Science and Engineering (IJCSE), Vol. 17, No. 4, 2018

Abstract: Web service composition consists of creating a new complex web service by combining existing ones. The selection of composite services is a very complex and challenging task, especially with the increasing number of services offering the same functionality. The web service selection can be considered as a combinatorial problem which focuses on delivering the optimal composition that satisfies the user's requirements (functional and non-functional needs). Several optimisation algorithms have been proposed in the literature to tackle the web service selection. In this work, we propose an approach that adapts a recent stochastic optimisation algorithm called self-organising migrating algorithm (SOMA) for QoS web service selection problem. Furthermore, we propose a fuzzification of the Pareto dominance and use it to improve SOMA by comparing the services within the local search. The proposed approach is applicable to any combinatorial workflow with parallel, choice and loop pattern. We test our algorithm with a set of synthetic datasets and compare it to the most recently used algorithm (PSO). The comparative study shows that SOMA produces promising results, and therefore, it is able to select the user's composition in an efficient manner.

Online publication date: Fri, 09-Nov-2018

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Computational Science and Engineering (IJCSE):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com