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A Content-Based Constraint-Aware Service Composition Method

A technology of service combination and content service, applied in the direction of website content management, other database retrieval, network data retrieval, etc., can solve the problem of heavy user retrieval and browsing burden, and achieve the effect of reducing browsing burden, speeding up decision-making, and reducing retrieval burden.

Active Publication Date: 2021-02-23
SOUTH CHINA AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the user's retrieval and browsing burden is still too large in the existing service composition technology, the present invention proposes a content-based constraint-aware service composition method to improve the efficiency of service composition

Method used

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  • A Content-Based Constraint-Aware Service Composition Method
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  • A Content-Based Constraint-Aware Service Composition Method

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Embodiment Construction

[0050] The present invention provides a content-based constraint-aware service composition method, such as figure 1 As shown, it specifically includes the following steps:

[0051] Step 1. Build a service network according to the functional requirements of the service portfolio to be established. On this basis, according to the service quality of the third-party service platform or service in the service network, the user's preference for various non-functional features, and the user's preference for the third-party The trust degree of the service platform or service, the service agent selects a series of candidate third-party service platforms or services for the user;

[0052] figure 1 In the given example, the functional requirement of the service combination that the user wants to create is travel planning. This demand can be subdivided into specific functional requirements such as restaurant inquiry and reservation, hotel inquiry and reservation, scenic spot inquiry and...

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Abstract

The invention discloses a content-based constraint-aware service combination method, including: selecting a candidate third-party service platform / service according to functional / non-functional characteristics, user preference and trust degree, and querying and obtaining content services; solving the combination problem The solver generates multiple solutions for the user based on different optimization objectives; when the user's constraints are too strict to cause an over-constrained problem, the over-constrained problem solver perceives the preference order of the user's constraints, generates the largest set of corrective constraint relaxation, and calls the combined problem solver Regenerate the plan; through the user constraint guidance mechanism, comprehensively consider the degree of satisfaction of the plan-user constraints, the representativeness of the plan and the diversity of the set of plans, and perceive user feedback, and repeatedly return the most suitable k plans for the user until the user is satisfied . The invention simultaneously solves the over-constraint problem caused by too strict user constraints and the problem of too many solutions caused by too loose user constraints.

Description

technical field [0001] The invention belongs to the technical field of service computing, and in particular relates to a content-based constraint-aware service combination method. Background technique [0002] Web Service Composition (WSC) combines multiple homogeneous or heterogeneous services to create value-added services that meet user needs. With the rapid development of information technology, available web services from different fields appear on the network on a large scale. Therefore, user needs can be met by combining multiple available individual services into new integrated services according to their functions, semantics and logical relationships among them. [0003] Currently, existing service composition optimization methods consider both functional and non-functional characteristics as strategies for automated Web service composition. These methods can be divided into three categories: Quality of Service (QoS)-based, user preference-based and user-service t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08G06F16/958
CPCH04L67/02H04L69/329
Inventor 林丕源吴志辉黄沛杰何熠辉陈俊安
Owner SOUTH CHINA AGRI UNIV
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