引自S&P2020 call for papers
Systematization of Knowledge Papers
As in past years, we solicit systematization of knowledge (SoK) papers that evaluate, systematize, and contextualize existing knowledge, as such papers can provide a high value to our community. Suitable papers are those that provide an important new viewpoint on an established, major research area, support or challenge long-held beliefs in such an area with compelling evidence, or present a convincing, comprehensive new taxonomy of such an area. Survey papers without such insights are not appropriate. Submissions will be distinguished by the prefix “SoK:” in the title and a checkbox on the submission form. They will be reviewed by the full PC and held to the same standards as traditional research papers, but they will be accepted based on their treatment of existing work and value to the community, and not based on any new research results they may contain. Accepted papers will be presented at the symposium and included in the proceedings.
via https://www.ieee-security.org/TC/SP2020/cfpapers.html
说白了就是某个领域系统性的综合性的文章，可以说是综述，同时可以为理解这一知识领域提供新的视角。
所以能发这样文章的应该都有过硬的研究背景和扎实的综合性分析。
参考： https://hellocompiler.com/archives/tag/research-2