A network service evaluation and optimization method under uncertain network environments

A network service and network environment technology, applied in the field of network service and its application, can solve problems such as fuzzy control relationship algorithm description and calculation method are not given

Inactive Publication Date: 2008-07-09
TSINGHUA UNIV
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  • A network service evaluation and optimization method under uncertain network environments
  • A network service evaluation and optimization method under uncertain network environments
  • A network service evaluation and optimization method under uncertain network environments

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[0076] Step 7 remember the fuzzy partition matrix U i The first row of U i，1 ={μ i，1 ,...μ i，n ). If there exists k∈{1,2,...n), such that μ i，k i , then it shows that in the test case TC i Enter the next, candidate service IWS k The output result is abnormal, so the IWS k Excluded from the candidate service set IWS, the O i，k From the output sample set O i and let n=n-1, the program jumps to step 6; if for any k∈{1, 2,...n), there is μ i，k ≥λ i , then execute the next step;

[0077] Step 8 judges whether i

[0078] Step 9 Get each test case TC i Under the U i，1 For those candidate services IWS that have been eliminated from the candidate service set IWS in step 7 k , then let μ i，k =0, i=1, 2, . . . M. From this, the final test reliability matrix U can be obtained * =[μ i，k ] M×N , and the set of clustering prototype vectors (i.e. the expecte...

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Abstract

An evaluating and optimizing method for network service in an uncertain environment belongs to the application technology field of network service and is characterized in that a network service describing document is set at a server end and a generator of testing example produces a testing example collecting group according to the network service describing document while a candidate serving finder provides a candidate service group according to the network service describing document; according to the example collecting group and the candidate service group, a credibility testing module applies the credibility testing algorithm based on the traditional vague C means algorithm to produce a credibility testing matrix of the candidate service group and an outputting group of expected standard, on the basis that the credibility of the candidate service that can meet the needs of users can be obtained. The invention takes the uncertainty of outputting results of net service into fully consideration, and makes quantitative and qualitative analysis of the credibility of network service and evaluates and optimizes the ideal net service according to the credibility index.

Description

technical field [0001] The invention belongs to the field of network service and its application, and aims to provide people with a method for evaluating and optimizing a large number of network services with the same or similar functions and service quality in an uncertain network environment. Background technique [0002] In the network environment, network services have great uncertainty. Users cannot accurately judge whether the network service can fully meet their functional and non-functional (that is, service quality) requirements before invoking it. Different from the meaning of reliability, the credibility of a network service reflects the user's trust in the network service to meet its functional and non-functional requirements. Network services with low reliability may bring unpredictable and even serious consequences to enterprise application systems. Therefore, the credibility of network services is an important factor that users need to consider in the proces...

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Application Information

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IPC IPC(8): H04L12/26H04L1/22
Inventor 范玉顺李喜彤
Owner TSINGHUA UNIV
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