1, "correspondent" often refers to the chief person in charge of the project, who is responsible for the funding and design of the project, the writing and checking of the article, and is fully (or mainly) responsible for the authenticity of the content of the paper, the reliability of the data, the credibility of the conclusion, and whether it conforms to the legal norms, academic norms and moral norms. Generally, when reading a thesis written by a graduate student, the tutor is a "correspondent".

2. The definition of "correspondent" in several foreign periodicals with high impact factors is that the correspondent must be one of the authors of the article, and his role is to communicate with the manuscript, that is, to act as a contact. Correspondents of foreign journals are mainly responsible for the exchange and academic interpretation of papers to ensure their academic authenticity.

3. "Correspondents" should usually have a high academic status and professional level, and help the first author as a mentor or an important mentor in this scientific research work.