Query word automatic expansion method, device and equipment and storage medium

• Main Authors: WANG XUAN, ZHANG HAO, ZHOU QILYU, ZHOU PENG, WANG CHAO, ZHENG LI, XU XINXIN, YOU JIACHUAN
• Format: Patent
• Language: Chinese; English
• Published: 06.04.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention discloses a query word automatic extension method, device and equipment and a storage medium, and the method comprises the steps of obtaining a query problem input by a user in history and all documents which can be queried by the user, and obtaining words in the query problem and all the documents as alternative semantic extension words; obtaining a query keyword currently input by a user, respectively calculating the similarity between the query keyword and each alternative semantic extension word, and determining the plurality of alternative semantic extension words as first extension words based on the calculated similarity, wherein the similarity corresponding to the first extension word is greater than the similarity corresponding to other alternative semantic extension words; and querying by utilizing the first extension word and the query keyword to obtain a corresponding document. Visibly, when the query is carried out based on the query keyword currently input by the user, the query ke