The invention belongs to the technical field of search engines, and particularly relates to an optimized
search engine construction method and
system based on feature
deep learning, and the
system comprises a search operation unit, a monitoring and early warning unit and a management and control terminal, the search operation unit comprises a multi-dimensional
semantic feature mining module, a user implicit intention analysis module, a deep
feature fusion modeling module and a dynamic retrieval strategy generation module; a multi-dimensional
semantic feature set and a user intention
feature set are formed through a multi-dimensional
semantic feature mining module and a user implicit intention analysis module, and a deep
feature fusion modeling module performs deep fusion of data features and user intention features through an attention mechanism and
cross validation optimization. The dynamic retrieval strategy generation module is used for providing high-quality feature support for retrieval strategy generation, the accuracy of retrieval results is guaranteed, the dynamic retrieval strategy generation module generates dynamic strategies adaptive to different requirements and data states on the basis of
reinforcement learning, and the retrieval accuracy and retrieval efficiency of a
search engine are remarkably improved.