The application relates to an entity matching method,
system, device and medium based on word frequency, wherein the method comprises the following steps: performing word segmentation on aliases in a plurality of entity data to obtain a first word segmentation
list and an
alias word set, counting word
frequency data of words in the
alias word set, removing city words existing in the first word segmentation
list to obtain a second word segmentation
list, judging whether the words in the second word segmentation list are common words according to the word
frequency data,
processing the words in the second word segmentation list according to the judgment result, obtaining
alias keywords corresponding to the aliases, and querying whether the alias keywords exist in a
text corpus; if the alias keywords exist, an entity corresponding to the alias keywords is recognized in the
text corpus. Through the application, the problems of missed recognition caused by alias simplification and alias
synonym misjudgment are solved. The alias keywords are obtained based on the word frequency of the words in the aliases, entity matching is more accurate, and the accuracy of entity matching is improved.