Ei retrieval includes conference retrieval and periodical retrieval, so they are related to collection. Therefore, the publication of ei papers includes the publication of ei conference papers and the publication of ei periodical papers, mainly because the publication carriers are different. Conference papers are articles read at academic conferences, while journal papers are published in journals.

Therefore, ei retrieval can not only retrieve academic conference papers, but also retrieve academic journal papers. At present, the recognition of conference papers in domestic review is not as good as that of journal papers. The reason is that there are too many academic conferences in recent years and the level is uneven. Some academic conferences are indeed of low value, while ei periodicals are generally of high value and level, so their recognition in domestic promotion assessment is still relatively high.

The publication of periodical papers must be familiar to everyone. The biggest difference between ei periodical publishing and domestic periodical publishing is that English writing is required. Others are similar in the release process, with little difference. The publication of conference papers is more different from journal papers. The author first needs to choose a suitable academic conference and submit it according to the meeting requirements and specific time. Once hired, there will be an employment notice, and the author can attend the meeting according to the specified time. After the meeting, there may or may not be a collection of essays published.