An Enhanced QoS Prediction Approach for Service Selection

Authors:
Liang Chen;Yipeng Feng;Jian Wu;Zibin Zheng
Affiliations:
-;-;-;-
Venue:
SCC '11 Proceedings of the 2011 IEEE International Conference on Services Computing
Year:
2011

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Abstract

In this paper, we propose an enhanced QoS prediction approach to predict the missing QoS values for QoS-based selection. Compared with existing QoS prediction methods, our proposed A Smooth approach has two differences: 1) using A-cosine equation for similarity calculation to remove the impact of different QoS scale, 2) adding a data Smoothing process to improve the prediction accuracy. An extensive performance study based on a real public dataset is reported to verify the prediction accuracy of our proposed approach.