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Web service replacing method based on weighted sequence relation

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, and achieve the effects of improving replacement efficiency, improving service efficiency, and saving time and resources

Active Publication Date: 2018-08-31
NANJING UNIV OF POSTS & TELECOMM
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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

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  • Web service replacing method based on weighted sequence relation
  • Web service replacing method based on weighted sequence relation
  • Web service replacing method based on weighted sequence relation

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Embodiment Construction

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

[0026] like figure 1 As shown, the present invention has designed a kind of Web service replacement method based on weighted sequence relationship, and this method specifically comprises the following steps:

[0027] Step 1. Obtain the service set from the interaction information and service process of the Web service, and calculate and obtain the service sequence; and obtain the frequent Service sequence, the process principle is as follows figure 2 As shown, 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 sequence set P: P={p j},0≤j≤|P|, where p j is a single sequence and j is an integer; the attribute information between the service set and the sequence is quantified by the matrix R, then:

[0029] R={r ij} ...

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Abstract

The invention discloses a Web service replacing method based on a weighted sequence relation. The method comprises the following steps of acquiring a service set from the interaction information of aWeb service and calculating and acquiring a service sequence; according to the calculated service set, a service similarity in the service sequences of subsets and a calculated service sequence probability, acquiring a frequent service sequence; constructing a correlation matrix formed by the frequent service sequence and a preset similar service sequence, carrying out weighted processing on the frequent service sequence in the matrix so as to obtain a weighted service sequence, and normalizing the weighted service sequence; and using a sequential pattern mining model to mine the normalized weighted service sequence, calculating the confidence of the preset similar service sequence in the weighted service sequence to the frequent service sequence, acquiring a confidence interval and takingas the selection range of a replaceable service, and selecting the replaceable service and executing replacing. In the invention, service similarity matrix model construction is added into a servicereplacing process so that a replacing service query target is increased and service replacing efficiency is improved.

Description

technical field [0001] The invention relates to a method for replacing Web services based on weighted sequence relations, 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 abnormalities may affect the quality of services, and seriously cause the termination of the entire composition process. In order to ensure the normal operation of the process, it is very important to accurately find the service that satisfies the replacement in the event of a failure or failure, and to achieve service replacement. Therefore, in service replacement, frequent patterns of Web services can be considered, that is, patterns that frequently appear in data sets, such as in shopping history databases, the order of purchases and the content of transactions. If a substructure...

Claims

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Application Information

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IPC IPC(8): G06K9/62G06Q10/06H04L29/08
CPCH04L67/02G06Q10/0631G06F18/22
Inventor 王海艳张朝阳许子明
Owner NANJING UNIV OF POSTS & TELECOMM
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