Method and device for constructing search index database and search method and device

• Main Authors: LYU ZHENGWEI, LEI TAO, LIANG XIAO, SHI ZHIZHONG
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The invention provides a method for constructing a search index database and a search method.The method for constructing the search index database comprises the steps that a target video file is obtained; based on the target video file, a first node set is extracted, the first node set comprises at least one first node, and each first node comprises text information corresponding to one frame image of the target video file; based on the target video file, a second node set is extracted, the second node set comprises at least one second node, and each second node comprises text information corresponding to one audio clip of the target video file; and adding the first node set and the second node set to a search index database. By means of the method, finer-grained video search can be achieved, the part, related to the search text, in the video can be quickly and accurately positioned, and therefore the search experience of a user can be improved. 本公开提供了一种用于构建搜索索引库的方法及搜索方法，其中，用于构建搜索索引库的方法包括：获取目标视频文件；基于目标视频文件，提取