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Fuzzy QoS (Quality of Service) selection method for web service in combination with expert opinion and user preference

A web service and expert technology, applied in the field of web service fuzzy QoS selection that integrates expert opinions and user preferences, can solve problems such as inconsistency

Active Publication Date: 2013-05-01
SOUTH CHINA UNIV OF TECH +1
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Problems solved by technology

However, we have reasons to believe that different users will have different understandings of QoS requirements in different situations, and trying to achieve a commonly recognized ranking through collective resolution does not seem to be very realistic.

Method used

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  • Fuzzy QoS (Quality of Service) selection method for web service in combination with expert opinion and user preference
  • Fuzzy QoS (Quality of Service) selection method for web service in combination with expert opinion and user preference
  • Fuzzy QoS (Quality of Service) selection method for web service in combination with expert opinion and user preference

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Embodiment Construction

[0078] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0079] Such as image 3 Shown is the overall framework of the specific embodiment of the present invention.

[0080] A method for fuzzy QoS selection of Web services combining expert opinions and user preferences, comprising the following steps:

[0081] (S1) Use fuzzy language variables based on intuitionistic fuzzy sets to describe the performance and importance of each QoS indicator; as shown in Table 1 and Table 2 below, the fuzzy language variables set specific intuitionistic fuzzy numbers, but the setting of each value It is not limited to this range, this is just an example:

[0082] Table 1. Fuzzy linguistic variables describing the importance of QoS metrics

[0083]

[0084] Table 2. Fuzzy linguistic variables describing the performance of a certain QoS indicator of a service

[0085]

[0086]

[0087]Usi...

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Abstract

The invention particularly discloses a fuzzy QoS (Quality of Service) selection method for web services in combination with expert opinions and user preference. The fuzzy QoS selection method comprises the following steps that: 1. performance situations and importance degrees of all QoS indexes are described by using fuzzy language variables based on an intuitionistic fuzzy set; 2. all experts evaluate the importance degree each QoS index and the performance situation of each QoS index of each service by using the fuzzy language variables, and evaluations of all experts are combined to obtain the comprehensive opinions of all experts on the QoS indexes; 3. users raise requirements on the performance situation and the importance degree of each QoS index by using the fuzzy language variables, and the comprehensive opinions of all experts on the QoS indexes are combined to obtain the all opinions on the QoS indexes; and 4. QoS comprehensive rankings of services are obtained according to the overall opinions on the QoS indexes. The fuzzy QoS selection method for web services in combination with expert opinions and user preference has the advantages that not only can the fuzzy evaluations of the experts be combined, but also the user preference is considered, and QoS selections which contain the expert opinions and respect the user preference are obtained by enabling the user preference to act on the expert opinions.

Description

technical field [0001] The invention relates to the field of selection methods of semantic Web services in an intelligent semantic network, in particular to a fuzzy QoS selection method for Web services that integrates expert opinions and user preferences. Background technique [0002] With the improvement of the semantic description capability of semantic web services and the explosive growth of the number of services, the number of services with the same or similar functions discovered by the service discovery method based on functional attributes has also skyrocketed. The quality of services varies. A good service discovery method should not only find services that theoretically meet user needs, but also find services that can fulfill user requirements as well as possible. The service discovery method based on QoS matching identifies excellent services on the basis of service function matching, thereby improving user experience. [0003] The W3C working group defined the...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 刘发贵肖芬
Owner SOUTH CHINA UNIV OF TECH
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