Information retrieval in a narrow sense includes not only the storage of information. Information retrieval in a narrow sense usually refers to providing relevant information clues and contents according to the needs of users in a specific information system. It involves not only information storage, but also information retrieval, processing, evaluation and utilization.
In narrow information retrieval, information storage is one of the basic and necessary links. Through the storage of information, we can organize and classify various types of information resources for subsequent retrieval and utilization. Information retrieval in a narrow sense is not limited to information storage, but also includes information retrieval, information processing, information evaluation and information utilization.
Information retrieval in a narrow sense is a comprehensive process, involving information storage, retrieval, processing, evaluation and utilization. It aims to help users get the information resources they need quickly and accurately, and provide support and help for their decision-making and actions.
The application field of narrow information retrieval;
1. Libraries and archives: Libraries and archives are one of the earliest and most widely used information retrieval fields. Libraries and archives collect a large number of books, periodicals, newspapers and other paper documents, and also provide digital resources such as electronic databases and electronic periodicals. Through information retrieval technology, libraries and archives can help users find the information resources they need conveniently and quickly.
2. Search engine: Search engine is another important application field of information retrieval technology. Search engines grab the information of web pages on the Internet, build an index and organize it into a huge database, so users can quickly find the information they need through keyword search.
3. E-commerce and online shopping: E-commerce and online shopping websites need to show users a lot of commodity information. Through information retrieval technology, e-commerce and online shopping websites can quickly retrieve commodity information that meets users' needs according to users' query conditions, and improve user experience and sales efficiency.
4. Medicine and bioinformatics: The field of medicine and bioinformatics involves a large amount of medical and biological data. Information retrieval technology is widely used in this field to store, retrieve and analyze medical literature, gene sequences and other information, and provide support for medical research and practice.