Custom word segmentation optimization method and system based on distributed search

The invention discloses a user-defined word segmentation optimization method and system based on distributed search. The method comprises the following steps: S1, collecting user query historical records; s2, analyzing user query historical records; s3, establishing a user-defined word segmentation lexicon; and S4, optimizing parameters of the user-defined word segmentation device. The system comprises a user query history collection module, a user query history analysis module, a word segmentation library creation module and a word segmentation device parameter optimization module. According to the user-defined word segmentation optimization method and system based on distributed search, a user-defined word segmentation lexicon is established, and actual requirements and basic data of a user are better matched; aiming at a multi-word search condition, the self-defined word segmentation device is optimized, so that the search accuracy can be improved, and the error rate can be reduced; a result display optimi