LLCF: A Load- and Location-Aware Collaborative Filtering Algorithm to Predict QoS of Web Service

Chen LI, Xiaochun Zhang, Chengyuan Yu*, Xin Shu, XiaoPeng Xu

*Corresponding author for this work

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

Abstract

The prediction of Quality of Service (QoS) significantly facilitates the web services selection for QoS based web service recommender systems. One effective method for predicting web services' QoS values is the collaborative filtering (CF) algorithm. However, the existing CF algorithms experience potential scalability issues, as well as the accuracy issues. We present a load-and location-aware collaborative filtering algorithm (LLCF) to improve the prediction accuracy and the scalability. To assess the proposed LLCF, we leverage Amazon Cloud platform where hosts various web services. The experiments are conducted based on selected web services where QoS values are collected. The results show the prediction accuracy is significantly improved by the proposed LLCF. Furthermore, complexity analysis results show that our LLCF can remarkably improve the scalability.

Original languageEnglish
Title of host publicationProceedings - 2022 IEEE 22nd International Conference on Software Quality, Reliability and Security Companion, QRS-C 2022
Number of pages8
PublisherIEEE
Publication date2022
Pages700 - 707
ISBN (Electronic)979-8-3503-1991-0
DOIs
Publication statusPublished - 2022
Event22nd International Conference on Software Quality, Reliability, and Security Companion (QRS-C) - Guangzhou, China
Duration: 5 Dec 20229 Dec 2022

Conference

Conference22nd International Conference on Software Quality, Reliability, and Security Companion (QRS-C)
Country/TerritoryChina
CityGuangzhou
Period05/12/202209/12/2022
SeriesInternational Conference on Software Quality, Reliability and Security Companion
ISSN2693-9371

Keywords

  • Collaborative Filtering
  • Load-Aware
  • Location-Aware
  • QoS Prediction
  • Scalability
  • Web Service

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