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What do SCI, EI and ISTP mean respectively?
When it comes to publishing English articles, we have to talk about several literature indexes, such as SCI, EI and s SCI. Among them, Science Citation Index (SCI) is the most authoritative scientific and technological literature retrieval tool recognized internationally at present. It has also led to the fact that some colleges and universities now require as many master's and doctoral dissertations as SCI articles.

SCI is a periodical literature retrieval tool published by institute for scientific information (ISI) on 1960. Scientific citation index is mainly based on Bradford's literature dispersion theory and Garfield's citation analysis theory. By counting the cited frequency of papers, we can make a statistical analysis of an article, an article collected by an author, a scientific research unit, a journal, and even all articles in a country or region, so as to judge the international academic level of the analysis object. Generally speaking, the higher the number of citations, the greater the influence of the article in its research field, and the higher the attention of international peers, thus indicating the higher the academic level of the author. The more times the journal is cited as a whole, it also shows that the higher the level of the journal in its research field, the higher the impact factor. Quantifying the indicators of journals and articles has become a standard to evaluate the level of a scientific researcher by the impact factors of the journals where the articles are located and the number of times the articles are cited.

On HowNet, through the paper retrieval function, we can find out the publication status and abstracts of articles in various stages of related research topics, and cross-index them to get all kinds of very useful information, such as references and cited status.

SCI mainly includes basic research papers of natural science, so its indicators are mainly applicable to the achievements of basic research of natural science. This is unfair to researchers who are biased towards engineering, because even if they have made a lot of efforts and done a lot of application work, the published articles are likely not to be included in SCI. Therefore, the engineering index (EI) has become another evaluation standard. EI is an engineering technology retrieval tool published by American Engineering Information Company. It was purchased by Elsevier 1998. It contains a large number of engineering journals, covering all fields of engineering technology. There are not many Chinese periodicals collected by SCI in China, but many periodicals collected by EI. Due to the large number of periodicals included in EI, EI articles are relatively easy to be published indirectly. Therefore, many colleges and universities do not take EI articles as the judging criteria.

Besides periodicals, conferences are another source of articles. Index of scientific conference proceedings; ISTP is used to collect and retrieve conference articles. It was founded in 1978 and edited and published by American Society for Scientific Information. In my field, conference articles are much easier to publish than journal articles, and there is basically no peer review, so the quality is uneven. Basically, the conference articles are not in the resume.