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A Web Service Replacement Method Based on Weighted Sequence Relationship

A web service and sequence technology, applied in the field of web services, can solve the problems of low replacement efficiency, high cost, and small selection range of services to be replaced, so as to improve replacement efficiency, save time and resources, and improve service replacement efficiency Effect

Active Publication Date: 2022-05-20
NANJING UNIV OF POSTS & TELECOMM
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  • Description
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  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a method for replacing Web services based on weighted sequence relations, and solve the problem that after service failure or failure occurs in the existing Web services, the selection range of the service to be replaced is small and the service Replacement often needs to spend a lot of money to find alternative candidate services, resulting in low replacement efficiency

Method used

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  • A Web Service Replacement Method Based on Weighted Sequence Relationship
  • A Web Service Replacement Method Based on Weighted Sequence Relationship
  • A Web Service Replacement Method Based on Weighted Sequence Relationship

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Embodiment Construction

[0025] Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0026] like figure 1 As shown, the present invention designs a Web service replacement method based on a weighted sequence relationship, and the method specifically includes the following steps:

[0027] Step 1. Obtain the service set from the interaction information and service process of the Web service, and obtain the service sequence by calculation; and obtain the frequency according to the similarity of the related services in the calculated service set and the service sequence of its subset and the calculated service sequence probability. Service sequence, the process principle is as follows figure 2 The specific process is as follows:

[0028] Step 1.1, calculate the service sequence, first define the service set S: S={S i}, 0≤i≤|S|, where i is a single service and i is an integer, and the set of sequences P: P={p j},0≤j≤|P|, where p j is a single seq...

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Abstract

The invention discloses a method for replacing Web services based on a weighted sequence relationship, which includes the following steps: obtaining a service set from interactive information of Web services, and calculating and obtaining a service sequence; and according to the calculated service set and the service sequence of its subset The similarity of the services in the service and the calculated service sequence probability are used to obtain frequent service sequences; construct a correlation matrix composed of frequent service sequences and preset similar service sequences, and weight the frequent service sequences in the matrix to obtain weighted service sequences, and weighted Regularize the service sequence; use the sequence pattern mining model to mine the normalized weighted service sequence, calculate the confidence of the preset similar service sequence in the weighted service sequence to the frequent service sequence, and obtain the credible interval as an alternative service , and select the replaceable services in it and execute the replacement. The invention adds the service similarity matrix model construction into the service replacement process, increases the replacement service query target, and improves the service replacement efficiency.

Description

technical field [0001] The invention relates to a Web service replacement method based on a weighted sequence relationship, and belongs to the technical field of Web services. Background technique [0002] With the development of Internet technology, Internet-based services are increasing day by day. In many practical applications, services are in a dynamically distributed environment, and various exceptions may affect the quality of services, which will seriously lead to the termination of the entire composition process. In order to ensure the normal operation of the process, it is critical to accurately find the service that satisfies the replacement in the event of a failure or failure. Therefore, in service replacement, frequent patterns of web services can be considered, that is, patterns that frequently appear in data sets, such as in a shopping history database, the order of purchases and the content of transactions, if a substructure or itemset is combined. Togethe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/62G06Q10/06H04L67/02
CPCH04L67/02G06Q10/0631G06F18/22
Inventor 王海艳张朝阳许子明
Owner NANJING UNIV OF POSTS & TELECOMM
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