Core papers generally refer to core journal papers, which refer to papers published in core journals. Core journals are the main journals of a certain discipline. Generally speaking, it refers to a professional periodical with a large amount of professional information and high quality, which can represent the development level of professional disciplines and is valued by readers of this discipline. Relevant experts have found that the actual distribution of literature information sources has the effect of core journals, that is, a large number of scientific papers in a professional world are concentrated in a few scientific journals.