The application discloses a multi-
document summarization extraction method and
system based on a
Capsule-BiGRU network and event automatic classification, and belongs to the technical field of
natural language processing. Firstly, text keywords are extracted, and preliminary clustering is completed according to the extraction result; a local
feature matrix of the text is extracted by using a
capsule network, a global
feature matrix of the text is extracted by using a bidirectional gated recurrent unit network, text similarity fusion analysis is carried out according to the extracted local
feature matrix and global feature matrix, and a multi-level similarity vector of the text is obtained; then, text similarity is determined, and accurate clustering is carried out according to the text similarity determination result; finally, the calculation of a minimal
dominating set is carried out on each type of document in the text clustering result, the theme and the
semantics are fused, and a multi-
document summarization extraction result is obtained. The method fuses multi-layer clustering, global features and local features to improve the accuracy of multi-
document summarization extraction, and can solve the problem that accurate clustering is difficult in the current multi-document summarization extraction process.