Methods and approaches of literature information retrieval

Methods of literature search: direct method, forward search method, reverse check method, and spot check method.

1. Direct method.

Also known as the common method, it refers to the method of directly using the retrieval system (tool) to retrieve literature information. It is further divided into the forward inspection method, the reverse inspection method and the spot check method.

2. Shun check method.

The sequential search method refers to the method of using the retrieval system to retrieve literature information in chronological order, from far to near. This method can collect systematic literature on a topic, and it is suitable for literature retrieval on larger topics. For example, if you know the beginning age of a topic and need to understand the whole process of its development, you can use the forward search method to start from the original date.

3. Reverse check method.

The backward search method is a method of using search tools in reverse chronological order from near to far, from new to old. This method is the fastest way to get the most up-to-date information.

4. Spot check method.

The spot check method refers to the method of selecting the time period when the literature information about the project is most likely or appearing the most, and using the search tool to conduct a key search according to the characteristics of the project.

Literature retrieval is the process of obtaining academic literature and research materials, and the following is a detailed introduction to the basic methods, approaches and steps of literature retrieval:

1.Determine the purpose and keywords of the search: First, clarify the purpose of your search, whether it is to obtain research literature in a specific field or to solve a specific problem. Then identify relevant keywords or terms that cover the topic, field, or research object you need.

2.Choose search tools and databases: Choose the right literature search tools and databases based on your research area and needs.

Commonly used literature search tools include scholarly search engines (e.g., Google Scholar, Scholar), scholarly databases (e.g., PubMed, IEEE Xplore, Scopus, Web of Science), and library directories and databases.

You can use logical operators (e.g., and, or, not) to combine keywords to narrow or broaden your search. Qualifiers (e.g., time range, document type) can also be used for further precise searches.

4.Search and filter: In the search tool or database of your choice, enter your keywords and search. The system returns a range of relevant document results. Filter the literature that is most relevant to your research topic based on its title, abstract, or full text.

5.Reading and evaluating the literature: Carefully read the selected literature to understand its research contents, methods, and conclusions. Evaluate the reliability and applicability of a document, review citations and citations to determine their importance and impact in the field of research.

6.Get the full text and save citations: If the full text of the document is not directly available, you can try to get the full text through your school library or other resources.

At the same time, it is recommended to save the citation information of the literature, including the author, title, publication date, journal conference name, etc., for subsequent citation and reference.

7.Update and track literature: Regularly update your literature search to keep up to date with the latest research progress and scholarly developments. Use literature management tools (such as Endnote and Zotero) to organize and track documents to facilitate the management and citation of literature.

In conclusion, literature search is a systematic process that requires clarity of purpose, selection of appropriate tools and databases, development of strategies, screening and evaluation of literature. Through continuous learning and practice, you will master more skills and experience to improve the efficiency and accuracy of literature search.