公开(公告)号：US10019492B2

公开(公告)日：2018-07-10

申请号：US15693971

申请日：2017-09-01

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenli Zhou ,  Zhe Wang ,  Feiran Hu

IPC: G06F17/30 ,  G06N99/00

CPC classification number: G06F16/2462 ,  G06F16/00 ,  G06F16/24553 ,  G06N20/00

Abstract: The present application relates to the field of computer technologies, and in particular, to a stop word identification method used in an information retrieval system. In a stop word identification method, after a first query input by a user is acquired, a second query that belongs to a same session as the first query is acquired, and a stop word in the first query is identified according to a change-based feature of each word in the first query relative to the second query. According to the solution provided by the present application, a stop word in a query can be identified more accurately, and efficiency and precision of an information retrieval system are improved.