Method, system and equipment for automatically extracting entities in power failure field and medium

The invention discloses a method, a system, equipment and a medium for automatically extracting entities in a power failure field, and relates to the field of power grid maintenance, and the method comprises the following steps: converting a target failure report file into a text format; performing word segmentation on the target fault text by adopting the domain dictionary table to obtain target words; encoding the target word to obtain a target encoding vector; inputting the target word and the target coding vector into an entity extraction model to obtain an instance extraction result of the target fault report file; the entity extraction model is used for converting a target word into a target word vector and extracting a semantic vector of the target word vector to obtain a target semantic vector; carrying out weighted fusion on the target coding vector and the target semantic vector by adopting an attention weighting mechanism to obtain a target fusion vector; and performing instance entity judgment on