XJIPC OpenIR  > 多语种信息技术研究室
Thesis Advisor李晓
Degree Grantor中国科学院研究生院
Place of Conferral北京
Degree Name硕士
Degree Discipline计算机应用技术
Keyword全文检索 搜索引擎 Rbac Lucene


Other Abstract

Along with the rapid growth of information on Web, it becomes more difficult for Web surfers to retrieve useful information to meet their needs among the gigantic amount of Web information. The full text retrieval (FTR) is the primal technology of disposing the information. It is a powerful tool for dealing with nonstructural data, and is one of the key technologies of the search engine. In the filed of full-text index, an improved word-based Chinese inverted index structure is proposed, which has a better performance than traditional approaches, and convenient for constructing maintaining and updating index. And the article also has carried on the research analysis to the access control technology on the role-based access control model, associated with the full text retrieval technology. The paper pays more attention in application of full-text retrieval technologies. How to use the new technique, optimize the structure of retrieval system, improve performance and efficiency, quicken speed and adapt the development of current web is also discussed in this paper. Lucene, a full-text search toolkit, is introduced into the paper, it has powerful performance and its body is cabinet, capable and vigorous. This convenient for it embedded applications. And the paper specify in detail the system development process and methods. As an open source code software, Lucent offer a superexcellent chance to study search engine key technology. It is worth to take a parse research and carry second development to it. In the application aspect, the paper works mostly in the design and implement of the full-text database. Its retrieval subsystem realize constructing indexer and searcher design on the basis of relative work such as document data process ,information extracting and sorting, and ,at last ,it implement the design target.

Document Type学位论文
Recommended Citation
GB/T 7714
刘彦峰. 基于角色的站内搜索引擎的研究和实现[D]. 北京. 中国科学院研究生院,2007.
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基于角色的站内搜索引擎的研究和实现.pd(1065KB)学位论文 开放获取CC BY-NC-SAApplication Full Text
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