Design And Implementation Of Chinese Retrieval System For Vertical Domain

The general information retrieval system does not search for specific areas and satisfy the search requirements without special restrictions which characteristics are wide content,large amount of information but not targeted,inaccurate query,and insufficient depth of content.The vertical domain-oriented retrieval system aims at a specific area with specific population,or specific needs.It has clear directionality in aspect of information collection,index construction and information retrieval which can satisfy users' needs for information accuracy and information mining depth.Based on the inverted index in the limited areas,the principle of full-text retrieval system and its related technologies are discussed.Meanwhile,the Chinese word segmentation system(Chinese Academy of Sciences)is used and the word segmentation rules are formed,which is combined with the full-text retrieval engine Solr achieve a Chinese retrieval system.After fully analyzing the user's needs and crawling information,the design of the database and related interfaces are completed,and a specialized database and full-text search system for specific domains was created,which provided a solution for the vertical domain search with a high practical value.