(a) analysis of the retrieval theme, clear objectives and requirements. (two) according to the requirements of the theme, formulate the retrieval strategy. (3) Select a retrieval tool or retrieval system. (four) determine the retrieval methods and ways. (5) Search documents and adjust retrieval strategies. (6) Evaluation of retrieval effect.

Data expansion:

To study a subject, we must first find out whether the subject you want to study has research value. Therefore, it is necessary to ask the library consulting agency to provide you with topic selection service and novelty retrieval service. After the library gives you the results of the topic selection and the novelty retrieval report, you can analyze the subject and make clear the goal of the subject literature retrieval.

The next thing to consider is which keywords to use, which retrieval toolboxes to choose, retrieval methods and retrieval ways can help your subject retrieval. You must list them all. If you feel troublesome, you can entrust a senior consultant in the library to help you formulate a retrieval strategy.

Priority is given to selecting authoritative and comprehensive retrieval systems from candidate retrieval systems for document retrieval. Choose the appropriate method and approach from the candidate retrieval methods and approaches, and then match the keywords and retrieval operators into a retrieval formula for retrieval. (5) If the retrieval result is unsatisfactory, change the retrieval strategy. Until you are satisfied.

Evaluation of retrieval results requires information analysis methods. Combine the project topic you want to study with the evaluation conclusion of search results, and finally get the research report.

Information retrieval is an essential basic knowledge for researchers. However, if time is tight, the literature retrieval in the preliminary research work can be completed by the library consulting department. If you do it yourself, you must make full use of the excellent books and periodicals in the library.

The reliability and authority of retrieval results are important indicators of retrieval results, and it is necessary to select appropriate retrieval tools and databases according to the actual situation in order to obtain more accurate and authoritative retrieval results.