Research On Component Retrieval Based On Local Component Resource Warehouse

Active Service is a kind of customized web service according to user's demands, its implementation mechanism is program mining, and the implementation involves program reusing and recombination. The emergence and development of component technology opened up a feasible path for the realization of active service. How to organize a well-structured, accurately-described local component resource warehouse is a basis of the realization of active service, while the accuracy and efficiency of component retrieval in LCRW is the premise of providing quality services.With the growing number of components, the importance of component retrieval is increasingly outstanding. The traditional methods of component retrieval are not accurate and comprehensive enough due to the lack of semantic information, in the active service model, the current component retrieval methods could not meet the needs of intelligence, personalization and integration. To address this issue, this paper designed a component retrieval framework for active service, proposed a component description model and retrieve strategy based on ontology and improved user's retrieve requirements through combining user interest model, this framework can improve retrieval efficiency, and is more fit for active service. Specific studies are as follows:Through researching current active service and component technology, we concluded what active service need on the component technology. According to analyzing the deficiency of component retrieval process in active service and component description, organization, classification in LCRW, the concept of domain ontology is introduced in the component description and a new component description model is putted forward.According to the keywords extracted from user interest model, the retrieval results are sorted, a more pertinent result is provided to the user, and using user interest information in retrieval process could improve the efficiency and accuracy of component retrieval.Under the design of component retrieval framework for active service, a retrieval strategy is given, and user's retrieve requirements could be improved by user interest model and domain ontology. Based on the classification and storage methods of LCRW, we extracted action names in CF facet as the index information, constructed LCRW of program mining and implemented component retrieval sub-System.Finally, the instance in e-commerce domain validated the feasibility and effectiveness of component retrieval method in this paper, and the next researches are proposed.