Generalization can be divided into induction, generalization and criticism.
(1) Summary: Summary is an academic paper written by the author, which is organized, summarized and arranged in a certain order to make them interrelated and consistent. To some extent, it can reflect the current research progress of a certain topic and a certain field, but few authors have their own opinions and opinions.
(2) General: General is a systematic and logical academic paper written by an author with a certain academic level on the basis of collecting more information, which can express the author's views or tendencies. Therefore, this paper has certain guiding significance and reference value for readers engaged in this topic and this field.
(3) Critical review: Critical review refers to the authors with high academic level and high attainments in this field. On the basis of collecting a large number of data, the original data are summarized, analyzed and written to reflect the current research progress and development prospects in this field.
Because the paper is logical, there are many authors' opinions and comments. Therefore, it has universal guiding significance for readers and guiding significance for readers' research work.