Academic papers are divided into six grades. Therefore, ei periodical papers are high-level academic papers, second only to the first-class T academic papers, and belong to the second-class A academic papers with A& as SCI, ISTP, s SCI and A & HCI.

Ei conference paper refers to an academic paper published at an academic conference, which was successfully submitted to EI database for retrieval. There are two keys to judge whether it is an ei conference paper: 1, which must be published in an academic conference (not a journal) and the paper must finally enter the ei database.

If a paper is published at an international conference, but the final paper is not in the ei database, it cannot be called an ei conference paper, but just an ordinary conference paper. If a paper is published in a journal (not an academic conference) and finally successfully enters the ei database, it cannot be called an ei conference paper, but an ei journal paper.

What needs to be emphasized here is that academic papers can actually be directly divided into two categories, journal papers and conference papers. Many people think that academic papers can only be published through journals. In fact, academic conferences can also be called papers. It is a relatively targeted topic selection, and then the invited papers are gathered to hold an academic exchange meeting, and finally the articles are submitted to the publishing house for publication.