Information retrieval is the main way for users to query and obtain information, and it is also the method and means to find information. Information retrieval in a narrow sense only refers to information inquiry. In other words, users can use certain methods and retrieval tools to find the information they need from the information collection according to their own needs.
1. The basic steps of information retrieval are subject analysis, selecting retrieval system, extracting retrieval words, constructing retrieval style, literature retrieval, adjusting retrieval style and processing retrieval results. Information retrieval is the main way for users to query and obtain information, and it is also the method and means for users to find information.
2. Narrow information retrieval only refers to information inquiry. That is, users use certain methods and retrieval tools to find the required information from the information set according to their own needs.
3. Information retrieval in a broad sense is a process of processing, classifying, organizing and storing information in a certain way, and then accurately finding out relevant information according to the specific needs of information users. Also known as information storage and retrieval. Generally speaking, information retrieval refers to information retrieval in a broad sense.
4. Processing the retrieval results. The retrieval results obtained are systematically sorted out, and the relevant literature information that meets the theme requirements is screened out. Select the record format of the retrieval results, identify the record contents such as literature type, genre, author, article name, content and source, and output the Thai inspection results.