1. Keywords or keywords: keywords or keywords are the core of retrieval, and core words related to the theme should be selected as keywords to increase the accuracy of retrieval. For example, if you want to retrieve information about "artificial intelligence", you can choose words such as "artificial intelligence", "AI" and "intelligence".
2. Search scope: to determine the search scope, different search tools can be selected according to the search requirements, including databases, library catalogues, Internet search engines, etc. For example, if you want to search academic papers of Google Academic, you need to search them in this database.
3. Retrieval methods: Different retrieval tools have different retrieval methods, such as single keyword retrieval, combined retrieval and accurate retrieval. It is necessary to select an appropriate retrieval method according to the retrieval requirements. For example, in Google search, you can use "precise search", "exclusive search" and "related search" to search.
4. Retrieval language: For the retrieval requirements of multilingual information, it is necessary to select retrieval tools in corresponding languages, such as English retrieval tools and Chinese retrieval tools. For example, in China HowNet, you can choose Chinese, English, Japanese and other languages to search.
5. Release time: The release time of the retrieved information can be determined according to the retrieval requirements, thus narrowing the retrieval scope and improving the accuracy of information acquisition. For example, in Google Academic, you can search according to the publication year of the article.
6. File type: according to the information requirements, you can select the file type to be searched, such as documents, books, audio, video, pictures, etc. For example, in Google search, you can select "gallery", "news", "picture" and "video" to search.
7. Other retrieval elements: such as author, publishing house, abstract, ISBN number, patent number, etc. For example, in the catalogue retrieval of the library, we can search according to the author, publishing house, ISBN number and other elements of the book.
Importance of basic retrieval
Determining the basic retrieval elements is an important means to effectively improve the efficiency and accuracy of information retrieval. According to the retrieval requirements, we should choose appropriate retrieval tools and methods, reasonably select keywords and combinations, and adjust the retrieval scope and sorting rules in time. In this way, we can get the information we need quickly and accurately.