Stop word identification method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsWenli ZHOU, Zhe WANG, Feiran HU
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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.
Claims21
A stop word identification method, wherein the method is executed by an information retrieval system running on a computing device and comprises:
- receiving a first query;
- acquiring a session identifier (ID) corresponding to the first query;
- acquiring, according to the session ID, a second query that belongs to a same session as the first query;
- acquiring a change-based feature of each word in the first query relative to the second query;
- and
- identifying a stop word in the first query according to the change-based feature of said each word in the first query relative to the second query.
A computing device comprising:
- a memory storage comprising instructions;
- and
- a processor in communication with the memory, wherein the processor executes the instructions to:
- receive a first query, acquiring a session identifier ID corresponding to the first query;
- acquire, according to the session (ID), a second query that belongs to a same session as the first query;
- acquire a change-based feature of each word in the first query relative to the second query;
- and
- identify a stop word in the first query according to the change-based feature of said each word in the first query relative to the second query.
A storage medium storing computer executable instructions that when executed by a processor instruct the processor to:
- receive a first query;
- acquire a session identifier (ID) corresponding to the first query;
- acquire, according to the session ID, a second query that belongs to a same session as the first query;
- acquire a change-based feature of each word in the first query relative to the second query;
- and
- identify a stop word in the first query according to the change-based feature of said each word in the first query relative to the second query.
Dependencies are inferred from the claim text.