1, specify the retrieval target:
Before literature retrieval, we should first make clear our retrieval objectives, including the subject to be retrieved, the time range, the literature type, etc. Only when the goal is clear can we choose the appropriate retrieval tools and databases.
2. Select the retrieval tool:
According to different retrieval objectives, different retrieval tools and databases can be selected. Common retrieval tools include search engines, library databases and professional websites. When choosing a retrieval tool, you should choose the right tool according to your own needs, so that you can find the needed information faster.
3, determine the search keywords:
Determining keywords is the key step of literature retrieval. When choosing keywords, try to choose words related to the theme and avoid using words that are too broad or too special. At the same time, it is necessary to consider the diversity and relevance of keywords in order to cover relevant documents as much as possible.
4. Search:
After the retrieval tools and keywords are determined, the actual retrieval can be carried out. In the process of retrieval, different retrieval strategies and technologies should be adopted according to the characteristics of different retrieval tools and databases. Keyword search can be used in search engines, and advanced search functions can be used in library databases.
5, screening and sorting out the literature:
The number of retrieved documents may be very large, so it is necessary to filter and sort out the retrieved documents. Screening can be based on the following factors: subject, author, publication time, authority, etc. In the process of screening, we can use the method of browsing abstracts and catalogues quickly to make a preliminary judgment on the literature. Then, according to the actual demand, the selected literature is further sorted out and analyzed.
Advantages and disadvantages of literature retrieval;
Advantages:
1, Advantages: High efficiency: Literature retrieval can find the needed information quickly and accurately, which greatly improves the efficiency compared with the traditional way of consulting literature.
2. Enjoy resources: Literature retrieval can make full use of the Internet, libraries and other resources to enjoy information, so that people in different regions and at different times can get the information they need.
3. Large information reserve: Literature retrieval can cover a large number of documents and information and provide a more comprehensive information reserve.
4. It is convenient to establish personal documents: Literature retrieval can sort and classify the retrieved information and establish personal documents for future reference and use.
Disadvantages:
1. Inconsistent information quality: Due to the differences in literature sources and quality, the quality of the retrieved information may be uneven, requiring users to screen and judge.
2. Information overload: Literature retrieval can provide a lot of information, but not all information is useful or relevant, which may lead to information overload.
3. Need to have certain skills and knowledge: Literature retrieval requires users to have certain information literacy and retrieval skills in order to effectively obtain the required information.
4. Limited by retrieval tools and databases: literature retrieval needs to use specific retrieval tools and databases, and these tools and databases may have certain limitations and cannot cover all information.