Video tagging method and device based on knowledge graph, and computer readable medium
A knowledge graph and labeling technology, applied to computer-readable media, the field of video labeling methods and devices based on knowledge graphs, can solve the problems of insufficient labeling, incomplete label recall, low label video search efficiency, etc., and achieves improved efficiency, The effect of increasing recall
Active Publication Date: 2021-09-21
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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[0004] However, the above-mentioned prior art tags for videos are all tags based on existing information, resulting in incomplete tags, incomplete tag recall, and low efficiency of tag-based video recommendation and video search.
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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] figure 1 It is a flow chart of Embodiment 1 of the knowledge graph-based video tagging method of the present invention. Such as figure 1 As shown, the video tagging method based on the knowledge map of this embodiment may specifically include the following steps:
[0029] S100. The entity linking technology based on the knowledge graph, extracting multiple candidate entities from the target video according to the known knowledge graph;
[0030] The video tagging method based on the knowledge graph of this embodiment is executed by a video tagging device based on the knowledge graph. The video tagging device based on the knowledge graph can be an electronic entity, or a software-integrated application can also be used. When in use, the ta...
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The present invention provides a video tagging method and device based on a knowledge map, and a computer-readable medium. The method includes: based on the entity linking technology of the knowledge map, extracting multiple candidate entities from the target video according to the known knowledge map; based on the pre-established video structure system, the knowledge map and the multiple candidate entities select entity, and obtain the target main entity and / or target sub-entity corresponding to the target video; the vertical class relationship between the main entity and related sub-entities is defined in the video structured system; based on the main entity and / or the The target sub-entity tags the target video. The technical solution of the present invention can expand the tags that cannot be extracted from the video itself, enrich the tags of the video, and make the video contain more comprehensive tags, thereby effectively increasing the recall rate of the video and improving video recommendation and video search based on tags. s efficiency.
Description
【Technical field】 [0001] The present invention relates to the field of computer application technology, in particular to a video tagging method and device based on a knowledge map, and a computer-readable medium. 【Background technique】 [0002] With the increase of video resources on the Internet, there are more and more video-related products, such as video recommendation and video search. [0003] In existing video search or video recommendation, video tagging technology is usually used to tag video resources with corresponding tags, which are then used to recommend videos based on tags, or build indexes based on tags to realize video search. Existing methods for video tagging include image technology, natural language processing (Natural Language Process; NLP) technology, and a combination technology of NLP and multimedia. Specifically, for image technology, it may include fingerprint technology, face recognition technology and so on. Among them, the fingerprint technol...
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IPC IPC(8): G06F16/71G06F16/78G06F16/36
CPCG06F16/367G06F16/71G06F16/7867
Inventor 张晓寒任可欣王述冯知凡张扬朱勇
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD