It also refers to correcting some mistakes in the article after the publication of the paper. Correction usually occurs when the article has been published, and it will not allow the author to modify the original text. After all, articles have been published in journals, which are usually published in appropriate positions in journals to briefly explain to the outside world.

Classification of dissertations:

Dissertations can be divided into bachelor's dissertations, master's dissertations and doctoral dissertations according to the degree applied.

According to the different research methods, the thesis can be divided into three categories: theoretical, experimental and descriptive. The research methods used in theoretical dissertations are theoretical proof, theoretical analysis and mathematical reasoning, through which scientific research results are obtained. The experimental paper uses experimental methods to carry out experimental research and obtain scientific research results; Descriptive papers use the methods of description, comparison and explanation to study newly discovered things or phenomena and obtain scientific research results.

According to different research fields, dissertations can be divided into three categories: humanities academic papers, natural science academic papers and engineering technical academic papers. The text structure of these three kinds of papers is * * *, which has long-term use and reference value.