Publishing academic conference papers refers to attending international academic conferences, where one of the authors speaks and is included in the officially published paper collection (with book number), and the papers that have not spoken are determined to be C-class papers. However, when attending a national academic conference, the paper delivered by one of the authors was included in the officially published collection of essays (with the book number) and was identified as a Class D paper. Those who don't speak are determined to make e-paper.
From the perspective of applying for studying abroad, only papers published in international academic journals are the most valuable, because most international conference papers can be retrieved and included by EI and CPCI, which has high international recognition. Generally speaking, the types that most people pay attention to are mainly published papers (that is, periodical papers in a broad sense) and academic periodical papers (mainly international periodical papers).
Generally, formal academic exchange conferences will publish conference papers, while international journal papers refer to papers first read or published at international academic conferences. The important grades are: periodical papers collected by EI/CPCI/ISTP, and periodical papers retrieved by EI and CPCI, which are recognized all over the world, so it is useful to graduate from doctoral degree or evaluate senior titles.