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Research & Design The Management System Of Science And Technological Literatures Based On Conceptual Phrase

Posted on:2008-07-24Degree:MasterType:Thesis
Country:ChinaCandidate:F L HuFull Text:PDF
GTID:2178360215985610Subject:Computer application technology
Abstract/Summary:PDF Full Text Request
The information resources lies in the technology literatures are treasuresto researchers. How to utilize, find, obtain, organize and manage effectivelythis information by researcher is a hard problem faced by informationservice workers. The high-speed growing knowledge requires urgently awhole new knowledge management tool to organize and manage effectivelythis information that obtained by information workers from every method sothat the researchers can use and retrieve when working. The main researchworks included in this paper are as follows:Knowledge model research. Build the express model of technologyliteratures knowledge. The paper describes technology literatures knowledgeexpress model in different layers separately, from concept grade, phrasegrade to frame grade. Concept grade means ontology concept net model,mainly includes domain concept net model and Hownet's organization andutilization two respects; Phrase grade means concept phrase's features andits analysis of structure model; Frame grade means documentexpression—technology literatures' description frame, mainly includesworks on technology literatures knowledge's description feature and frame'sconstruction.The attainment of technology literatures knowledge frame descriptionphrase. This paper directs at document information, distill featuresinformation—concept phrase by adopting features distilling method restingon ontology concept net features. And designed the attainment, evaluationand related degree calculation methods of the technology literaturesdescription phrases based on ontology concept net.Information retrieval. Has designed technology literatures knowledgeconcept searches strategy and evaluation methods base on frame. Systemunderstands user's enquiry demands on concept grade, according tounderstanding of user's personal feature, fills in inquiry frame, and seeks thesimilarities between frame and literatures frame through calculation, and then returns findings of documents which are needed by users.Knowledge management. Has designed field concept net edition tools,literatures reading instrument (notebook) tools etc. Users can manageconveniently the information records by using these tools, amend someinformation that are unreasonable, or make personalized settings to themanagement of literatures according to self understanding or preference,facilitates users making supplements and amendments to concept net.System construction.This paper finally designs and constructstechnology literatures knowledge management system platform on the basisof concept net, provides help to users in scientific research.
Keywords/Search Tags:Knowledge model, Ontology concept net, Knowledge description frame, Concept phrase attainment, Concept retrieve base on frame
PDF Full Text Request
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