Generally speaking, authoritative ei meetings will be searched after 1-3 months, ordinary ei meetings will be searched after 4-6 months, and some non-authoritative meetings will not even be searched or searched for more than 1 year. Depending on whether it is IEEE or CS CPS under IEEE, the two are different. Generally speaking, it doesn't matter which one Basically, EI is guaranteed.
The retrieval time is usually 3-5 months after the meeting. Of course, sometimes lucky people can get it back after the meeting 1 month. According to the retrieval catalogue of 20 15EI, AMM and AMR under TTP have been listed in T, so there are basically only four authoritative publishing houses that cooperate with the conference, namely IEEE, WIT, CRC and ATLANTIS.
Of course, retrieval time is more important than publishing house. If you don't know how to judge, you can search Baidu: EI Academic Conference Center, which contains a lot of learning materials about EI meetings, and analyzes the methods of judging the authority of EI meetings in detail.
In fact, IEEE articles will be retrieved by EI soon as they are put into storage. But what really affects the retrieval speed is the meeting you attended during middle school or the speed at which your article was sent to EI system. The articles I have read, EI meetings are usually retrieved by EI several months to half a year after the end of the meeting; Several of my journal articles were retrieved in two or three months.