Data retrieval method for improving retrieval efficiency and quality

摘要: The invention discloses a data retrieval method for improving the efficiency and quality. comprises following steps that both-way index based on database is constructed, keyword query or multi-key-word multi-statement of user received; relevancy ranking carried out includes according to frequency weight number times page table accessed quoted; interface designed, search request submitted, result expressed, behavior analyzed; VSM model adjusted. According method, quality are improved through technology technology, engine can understand purpose user, retrieve most relevant information within shortest time, adjusted so be suitable actual situation vector approximatively represent target document.