Urgent literature retrieval assignment, briefly describe the methods of literature retrieval

1. Fill-in-the-blank questions (1 point for each blank, 20 points in total).

1.According to the degree of processing of the extracted literature, the literature retrieval system can be divided into four types: catalogue type, bibliographic type, abstract type, full-text type, and retrieval system.

2.According to the different objects of search, information retrieval or literature retrieval is divided into literature retrieval, data retrieval, and fact retrieval

3.According to the processing level, the literature can be divided into primary literature, secondary literature, tertiary literature, and zero literature

4.The CBM database uses the Medical Thesaurus (Mesh) and the Thesaurus of Traditional Chinese Medicine for subject indexing, and the Chinese Library Classification of Medical Specialties for classification indexing.

5.When searching in the ScienceDirect database, if you want the author name to appear only in one person's name, you need to use the specific author search field, if the word A and term B are in an indefinite word order, and there are up to n words in between, the search query is a w n b

6.The ISSN number of Applied Nursing Research journal is 0897-1897 in ScienceDirect with the most recent Impact IF of

7.In the PubMed database, the journal name field is labeled with a feature identifier of TA, and the author field is characterized by AU

8.There are 756 papers presented at the 15th National Pediatric Academic Conference of the Chinese Medical Association included in the database of important conferences in China.

2. Multiple choice questions (1 point per question, 5 points in total).

1.Which of the following belongs to the primary literature (b).

a.Draft article bPublished conference papers.

c.Table of Contents dDictionary.

2.The following are the characteristics of the appearance of the literature: (c).

3.Which of the following methods improves accuracy when searching literature databases (a).

a.Subject headings weighted bUse or cExpand d. with subject headingsUse truncated words.

4.In the database, the concepts are, from smallest to largest, (d).

a.Document Record Field BRecord the Field Document.

c.The field Document Record DThe field "Record Document.

5.PubMed provides "automatic vocabulary matching technology", which will search in what order when an unqualified search term is entered into the search box: (d).

a.Mesh Conversion Table, Phrase Table, Author Index, Journal Conversion Table, Logical Operator Search.

b.Mesh Conversion Table, Phrase Table, Journal Conversion Table, Author Index, Logical Operator Search.

c.Mesh Conversion Table, Journal Conversion Table, Author Index, Phrase Table, Logical Operator Search.

d.Mesh Conversion Table, Journal Conversion Table, Phrase Table, Author Index, Logical Operator Search.

The methods of literature retrieval include direct method, forward search method, reverse check method, spot check method, traceability method and round robin method.

1. Direct method.

The direct method, also known as the common method, 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.

5. Retrospective method.

The traceability method refers to the method of tracing the original text (cited literature) one by one by using the references listed at the back of the document without using the general search system, and then expanding the scope of the literature information from the reference list listed after the original text, and tracing it one by one. It can snowball and obtain better search results based on the citation relationship between documents.

6. Round-robin method.

The round-robin method is also known as the segmented method or the synthesis method. It is a direct method and retrospective method alternately used in staging, in order to learn from each other's strengths and cooperate with each other to obtain better search results.