1. The units that organize the evaluation are different. The "China Scientific and Technological Paper Statistics Source Journal" published by the China Institute of Scientific and Technological Information, also known as the "Chinese Science and Technology Core Journal", is mainly in the field of natural sciences and is currently a relatively recognized source of science and technology statistics in China.

Journal catalog.

Commissioned by the Ministry of Science and Technology, the authority ranks first in the country.

Chinese core journals are identified by Peking University Library and many authoritative academic experts, and are currently widely recognized by the academic community.

In terms of influence, its level is one of the more authoritative among similar classifications. It is the most authoritative in terms of academic influence except the NTU core and the Chinese Science Citation Database (cscd).

2. Different selection methods. Based on the citation data of source journals, standardized processing is performed to calculate the total citation frequency, impact factor, current-year index, citation half-life, regional distribution number of papers, number of funded papers, and total self-citation ratio of various journals.

and other scientific and technological journal evaluation indicators, and are sorted according to the journal's discipline, impact factor, total citation frequency and journal word order.

The quantitative evaluation of core journals uses 9 evaluation indicators such as the number of indexed articles, the number of abstracts, the number of citations, the number of other citations, the rate of abstraction, the impact factor, inclusion in important domestic and foreign search tools, the ratio of funded papers, and the number of Web downloads.

, there are more than 60 databases and abstract publications selected as statistical sources for evaluation indicators, with a statistical literature volume of more than 221,177 million articles (2006 to 2008), involving more than 14,400 journals.

3. Chinese Core in Different Fields: "Overview of the Catalog of Chinese Core Journals" is hosted by the Peking University Library and the Journal Work Research Association of Beijing University Libraries.

Includes various subject areas.

China Science and Technology Core: "Chinese Science and Technology Article Statistics Source Journal" published by the China Institute of Scientific and Technological Information, also known as "China Science and Technology Core Journal", its subject scope is mainly in the field of natural sciences, and it is currently a relatively recognized source journal directory for science and technology statistics in China.

Because it is commissioned by the Ministry of Science and Technology, it has an official color and ranks first in the country in terms of authority.