用户微表情信息表征研究综述

Purpose/Significance] To analyze the current status and trends of research in the field ofmicro-expression recognition at home and abroad, and to provide a reference for the research on microexpression information representation of users in the field of library and intelligence. [Method/Process]The bibliometric-based research method revealed the research dynamics in the field of micro-expressionrecognition in the last decade, and analyzed the convergence trends, technical basis and difficult challengesof micro-expression recognition and information representation. [Result/Conclusion] Micro-expressiondatasets and micro-expression recognition technologies are current research hotspots; technical approaches,security ethics and database volume are major challenges for todays development; information transmissionand information feedback are emerging research areas that can be developed in libraries and intelligence inthe future, and areas such as meta-universe, privacy issues and technology-driven are future trends in theapplication of micro-expression recognition technologies.