Improving ELM-Based Service Quality Prediction by Concise Feature Extraction
Joint Authors
Sheng, Gang
Zhao, Yuhai
Yin, Ying
Wang, Guoren
Zhang, Bin
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-26
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Web services often run on highly dynamic and changing environments, which generate huge volumes of data.
Thus, it is impractical to monitor the change of every QoS parameter for the timely trigger precaution due to high computational costs associated with the process.
To address the problem, this paper proposes an active service quality prediction method based on extreme learning machine.
First, we extract web service trace logs and QoS information from the service log and convert them into feature vectors.
Second, by the proposed EC rules, we are enabled to trigger the precaution of QoS as soon as possible with high confidence.
An efficient prefix tree based mining algorithm together with some effective pruning rules is developed to mine such rules.
Finally, we study how to extract a set of diversified features as the representative of all mined results.
The problem is proved to be NP-hard.
A greedy algorithm is presented to approximate the optimal solution.
Experimental results show that ELM trained by the selected feature subsets can efficiently improve the reliability and the earliness of service quality prediction.
American Psychological Association (APA)
Zhao, Yuhai& Yin, Ying& Sheng, Gang& Zhang, Bin& Wang, Guoren. 2015. Improving ELM-Based Service Quality Prediction by Concise Feature Extraction. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1073526
Modern Language Association (MLA)
Zhao, Yuhai…[et al.]. Improving ELM-Based Service Quality Prediction by Concise Feature Extraction. Mathematical Problems in Engineering No. 2015 (2015), pp.1-15.
https://search.emarefa.net/detail/BIM-1073526
American Medical Association (AMA)
Zhao, Yuhai& Yin, Ying& Sheng, Gang& Zhang, Bin& Wang, Guoren. Improving ELM-Based Service Quality Prediction by Concise Feature Extraction. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-15.
https://search.emarefa.net/detail/BIM-1073526
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073526