The number of keywords is generally between 3-5, so it doesn't need too many, otherwise there is no focus. The design length of keywords should be between 3 and 8 words, and should be arranged at the lower left of the "abstract".

In order to meet the needs of document indexing or retrieval, the words or phrases selected from papers generally require certain specifications. If there are words or not included in relevant documents, they should not be selected.

Paper format: title, author's name, work unit, local zip code, content summary (about 150 words), keywords (3-5 words), text and references; Brief introduction of the author

First, several key words in the paper are appropriate.

The number of keywords is generally between 3-5, so it doesn't need too many, otherwise there is no focus. What are the key words of the paper? Keywords are core words extracted from the title and text of the paper, which can be understood as words that can summarize the theme of the paper or words that frequently appear in the text. A simple reply is a word that can reflect the theme of the paper.

If expressed in a sentence, it is the subject in the sentence. Keywords are generally 3-5 words with high generality, which can generally be extracted from the title of the paper.

For example, the key words of the paper "Research on the Integration of Three Governance to Promote the Construction of beautiful countryside" are the integration of three governance, beautiful countryside and construction.

According to the understanding of the academic hall, keywords are words or phrases that reflect the theme of the paper, usually arranged under the abstract, and the font size is different from the text. Generally, each article can choose 3~8 keywords, and multiple keywords are separated by semicolons, which are arranged from big to small according to the extension (conceptual scope) level of the entry.

Keywords are generally noun words or phrases, and in some cases there are verb words or phrases.

English keywords corresponding to Chinese keywords should be marked. Chinese comes first, foreign language comes last. Chinese keywords are marked with "keywords:" or "[keywords]"; English keywords are marked with "keywords:".

Key words should be selected from the National Standard Chinese Thesaurus as far as possible; Important terms and names of new disciplines, regions, people and documents that are not included in the glossary can also be used as keywords. Keywords should be general technical terms that can cover the main content of the paper.

Second, the method of selecting keywords:

The general selection method of keywords is: after the author finishes the creation of the paper, he selects from its title, hierarchical title and text (high-frequency words and keywords).

Third, how to write the key words of the paper?

1. First of all, it should be clear that the key words in the paper are the most frequent and core words in the paper and cannot be arranged at will.

2. Secondly, it should be clear that the key words of the paper are generally written at the end, that is, together with the abstract of the paper.

3. Thirdly, it should be clear that the key words of the paper mainly come from the topic. The topic is the center of the paper, which generally contains the core.

4. What are the requirements for keywords in the paper?

1. keywords are selected from the title, abstract and body of the paper, and are words with substantial meaning to express the central content of the paper. Keywords are words used by computer systems to index the content characteristics of papers, which are convenient for information systems to collect and provide readers with retrieval. Generally, 3-8 words are selected as keywords for each paper, and a new line is set at the bottom left of the "abstract".