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Mirror, Mirror, on the Web, Which Is the Most Reputable Service of Them All?

A Domain-Aware and Reputation-Aware Method for Service Recommendation
  • Keman Huang
  • Jinhui Yao
  • Yushun Fan
  • Wei Tan
  • Surya Nepal
  • Yayu Ni
  • Shiping Chen
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8274)

Abstract

With the wide adoption of service and cloud computing, nowadays we observe a rapidly increasing number of services and their compositions, resulting in a complex and evolving service ecosystem. Facing a huge number of services with similar functionalities, how to identify the core services in different domains and recommend the trustworthy ones for developers is an important issue for the promotion of the service ecosystem. In this paper, we present a heterogeneous network model, and then a unified reputation propagation (URP) framework is introduced to calculate the global reputation of entities in the ecosystem. Furthermore, the topic model based on Latent Dirichlet Allocation (LDA) is used to cluster the services into specific domains. Combining URP with the topic model, we re-rank services’ reputations to distinguish the core services so as to recommend trustworthy domain-aware services. Experiments on ProgrammableWeb data show that, by fusing the heterogeneous network model and the topic model, we gain a 66.67% improvement on top20 precision and 20%~ 30% improvement on long tail (top200~top500) precision. Furthermore, the reputation and domain-aware recommendation method gains a 118.54% improvement on top10 precision.

Keywords

Heterogeneous Network Reputation Propagation Topic Model Service Recommendation Service Ecosystem 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Keman Huang
    • 1
  • Jinhui Yao
    • 2
  • Yushun Fan
    • 1
  • Wei Tan
    • 3
  • Surya Nepal
    • 4
  • Yayu Ni
    • 1
  • Shiping Chen
    • 4
  1. 1.Department of AutomationTsinghua UniversityBeijingChina
  2. 2.School of Electrical and Information EngineeringUniversity of SydneyAustralia
  3. 3.IBM Thomas J. Watson Research CenterYorktown HeightsUSA
  4. 4.Information Engineering LaboratoryCSIRO ICT CentreAustralia

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