EI refers to "extended abstract of human factors in computing system", which is the abstract of research papers received at ACM CHI (human-computer interaction) conference. The length of EI paper is short, generally 2-4 pages, which requires highlighting the main contributions and innovations of this study. EI papers have high acceptance standards and are widely recognized and cited.

EI paper is an important research achievement in the field of human-computer interaction, and it is also an important platform for scholars in this field to display their research achievements and exchange academic experience. EI thesis is divided into oral statement and poster statement. Oral presentation is a highly interactive oral report, while poster presentation tends to show pictures and words.

The publication of EI papers is of great academic significance to scholars. On the one hand, EI papers can increase the number of papers and academic reputation of scholars, and at the same time attract more colleagues to pay attention to their research results; On the other hand, EI papers are also an important basis for scholars to apply for national and provincial scientific research projects and publish high-level journal papers. Therefore, it is very important for scholars in the field of human-computer interaction to write and publish EI papers.