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Web service recommendation system and method based on similarity propagation strategy

A similarity propagation and recommendation system technology, applied in the field of similarity propagation strategy, can solve the problems of Web service recommendation, inability to accurately evaluate the similarity between users or services, and inability to provide users with high quality

Active Publication Date: 2020-09-25
NAVAL UNIV OF ENG PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fact that the historical QoS data in the real environment is very sparse, the existing similarity evaluation methods cannot accurately evaluate the similarity between users or services, resulting in the inability to provide users with high-quality Web service recommendations.

Method used

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  • Web service recommendation system and method based on similarity propagation strategy
  • Web service recommendation system and method based on similarity propagation strategy
  • Web service recommendation system and method based on similarity propagation strategy

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0021] Assuming that the service recommendation system contains m users and n services, the QoS historical invocation information of users to services can be expressed as an m×n matrix R, where any item R ij means user u i call services j After the observed QoS value, if the user u i The service s has not been called before j , then R ij = null. The goal of the service recommendation system is to predict these missing data items through the existing data items in the matrix, and then recommend the Web service with the best QoS prediction value to active users.

[0022] like figure 1 A Web service recommendation system based on the similarity propagation strategy is shown, which includes a remote server 1, an input processing module 2, a direct similarity calculation module 4, a similarity graph construction module 5, a propagation path discovery mo...

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Abstract

The invention discloses a Web service recommendation system based on a similarity propagation strategy. The system is characterized in that the system comprises a remote server, an input processing module, a direct similarity calculation module, a similarity graph construction module, a propagation path discovery module, a similarity aggregation module, an indirect similarity calculation module, asimilar neighbor discovery module and a QoS value prediction and service recommendation module. According to the method, the accuracy of similarity evaluation can be effectively improved, so high-quality service recommendation is provided for users.

Description

technical field [0001] The technical field of the similarity propagation strategy of the present invention, in particular relates to a Web service recommendation system and method based on a similarity propagation strategy. [0002] technical background [0003] Web service is a self-describing, platform-independent and loosely coupled distributed component. Because it is based on a series of open standards and protocols based on Extensible Markup Language (XML, Extensible Markup Language), Web service can be used in Published, discovered, bound and invoked in the network. As a new type of distributed computing model, Web service technology has been widely used in the construction of Internet-oriented distributed applications in recent years. [0004] With the development of service-oriented computing technology, cloud computing and big data and other technologies, a large number of Web services with similar functions appear in the network, and the quality of service (QoS, Q...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/9535G06K9/62
CPCG06F16/9535G06F18/22
Inventor 苏凯刘宝平肖斌胡涛林名驰陈国卫刘少华苏晓光
Owner NAVAL UNIV OF ENG PLA