Flood forecast intelligent recommendation method based on similar rainfall-flood mode matching

The invention discloses a flood forecast intelligent recommendation method based on similar rainfall-flood mode matching. The method comprises the following steps: firstly, constructing a historical rainfall-flood association mode library based on an existing technical scheme; secondly, extracting semantic features of a current rainfall process by adopting an image feature extraction technology, and mining a historical rainfall mode set similar to a current rainfall mode from a historical rainfall-flood association mode library; and according to an association frequent item set between a rainfall mode and a flood mode in a historical rainfall-flood association mode library, intelligently selecting a flood mode and a corresponding flood process and recommending the flood mode and the corresponding flood process to a user as a flood process possibly caused by a current rainfall process. According to the method, rapid searching and matching of similar rainfall-flood modes of a rainfall-flood mode library in a hi