American Science Citation Index (SCI) was founded by institute for scientific information in Philadelphia in 1957. Is a citation database created and published by institute for scientific information (ISI)1961+0.

Through the statistics of the cited frequency of papers, the academic journals and scientific research achievements are evaluated and studied in many aspects, so as to judge the performance of scientific research output of a country or region, scientific research units and individuals and reflect its international academic level. Therefore, SCI is currently recognized as the most authoritative scientific and technological literature retrieval tool in the world.

2.EI index

Engineering Index (EI) is the oldest large-scale comprehensive retrieval tool, which was founded by the American Federation of Engineers in 1884. The engineering index includes conference documents, books, technical reports and papers. , and there are about 6.5438+0.5 million report abstracts, including the research results of all engineering disciplines and activities.

Extended data

Indexing tool:

SSCI

The biggest difference between SCI's companion piece, Citation Index of Social Sciences, is that SCI is partial to science, while SSCI is partial to arts, focusing on humanities and social sciences.

CSCD

Chinese scientific citation database is widely used in research and talent selection of scientific research institutions and universities. CSCD is mainly in the direction of science and engineering, which is suitable for science and engineering professionals to publish.

CSSCI

NTU core journals are neck and neck with Peking University core journals, which can be said to be the core journals with the highest academic value in the domestic core journal system, and the publishing difficulty is also the greatest among the domestic core journals, and many of them require higher academic qualifications for authors.

Baidu encyclopedia-engineering index

Baidu encyclopedia-scientific citation index