Illegal flag identification method and system for content community

The invention discloses an illegal flag identification method and system for a content community. The method comprises the following steps: acquiring a network image of a community network platform; judging whether a flag exists in the image or not according to a flag target detection model, and judging whether the image is an illegal flag image or not according to a flag image classification model; images judged and output by the flag target detection model and the flag image classification model are further sampled, recognized and labeled regularly, and recognition and labeling results serve as training sets of the flag target detection model and the flag image classification model to be optimized and trained; therefore, the purpose of continuously optimizing the flag target detection model and the flag image classification model is achieved, and the corresponding models can be adaptively iterated so as to identify flags which emerge continuously and are in different forms. 本发明公开了一种针对内容社区的违规旗帜识别方法及系统，其获取社区网