International Journal of Information and Communication Technology Research
مجله بین المللی ارتباطات و فناوری اطلاعات
International Journal of Information and Communication Technology Research
Engineering & Technology
http://ijict.itrc.ac.ir
1
admin
2251-6107
2783-4425
doi
1652
25391
en
jalali
1395
12
1
gregorian
2017
3
1
9
1
online
1
fulltext
fa
QoS-aware web service composition using Gray Wolf Optimizer
فناوری اطلاعات
Information Technology
پژوهشي
Research
In a service-oriented application, an integrated model of web services is composed of multiple abstract tasks. Each abstract task denotes a certain functionality that could be executed by a number of candidate web services with different qualities. The selection of a web service among candidates for execution of each task that is led to an optimal composition of selected web services is a NP-hard problem. In this paper, we adapt the Gray Wolf Optimizer (GWO) algorithm for selection of candidate web services whose composition is optimal. To evaluate the effectiveness of the proposed method, four quality parameters, response time, reliability, availability, and cost of web services are considered and the derived results are compared with several Particle Swarm Optimization (PSO) methods. The proposed method was executed in from 100 to 1000 times and the results showed that a better optimal rate (between 0.2 and 0.4) compared with PSO.
Optimal web service composition, Gray Wolf Optimizer algorithm, Particle Swarm Optimization, Service oriented, Quality of service
9
16
http://ijict.itrc.ac.ir/browse.php?a_code=A-10-27-22&slc_lang=fa&sid=1
Meysam
Karimi
100319475328460076
100319475328460076
Yes
Seyed Morteza
Babamir
100319475328460077
100319475328460077
No