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Method and system for ranking video retrieval

A video search and video technology, which is applied in the search field, can solve the problems of expressing video content, text description information, and difficult to distinguish video quality from good to bad, so as to achieve the effect of optimizing results and avoiding excessive dependence

Active Publication Date: 2015-12-23
BEIJING QIYI CENTURY SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a method and system for video search and sorting to solve the problem that the text description information in the existing video search and sorting method based on text description information is difficult to completely represent the video content and to distinguish the quality of the video from good to bad

Method used

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  • Method and system for ranking video retrieval
  • Method and system for ranking video retrieval

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Experimental program
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Embodiment 1

[0036] A method for video search and ranking provided by an embodiment of the present invention is introduced in detail.

[0037] The user's search and click behavior for videos can well reflect the user's preference for video search results, and can also help identify videos with cheating behavior in the text description information. For cheating videos, some users will be attracted to click to play, but when users click to play the video, they will soon find that the video does not meet their needs and quit playing. Therefore, the playing time of such videos is generally short, or the playing time accounts for the total The duration ratio is very low. However, for high-quality videos that meet the user's search needs, more user clicks will be accumulated, and the user's playback time will be very long, or the ratio of the playback time to the total time is high.

[0038] Based on the above idea, the embodiment of the present invention proposes a search and ranking scheme ba...

Embodiment 2

[0074] A method for video search and ranking provided by an embodiment of the present invention is introduced in detail.

[0075] In the embodiment of the present invention, user search and click behavior information is used for video search ranking, which can be divided into three stages: log collection stage, log analysis stage, and video search reordering stage.

[0076] 1. In the log collection stage, each user search request and click behavior information is collected according to the user's video search behavior. For the specific process, see figure 1 . For the specific technical content of the log collection phase in this embodiment of the present invention, reference may be made to the content in Embodiment 1.

[0077] 2. In the log analysis stage, the log information obtained in the log collection stage is recorded and counted, and mainly analyzed from three dimensions, such as Figure 4 shown. Count the playing time of each video and the proportion of short clicks...

Embodiment 3

[0110] A video search and ranking system provided by an embodiment of the present invention is introduced in detail.

[0111] refer to Figure 5 , shows a schematic structural diagram of a video search and ranking system in an embodiment of the present invention.

[0112] The system may include: a result candidate set acquisition module 300 , a correlation information recording module 302 , a first-type video deletion module 304 , a quality information and weight adjustment information acquisition module 306 , a ranking score determination module 308 , and a video ranking module 310 .

[0113] The functions of each module and the relationship between each module are introduced in detail below.

[0114] The result candidate set obtaining module 300 is configured to obtain a result candidate set related to the keyword of the user searching for the video according to the text description information of the video.

[0115] A correlation information recording module 302, configur...

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Abstract

The invention provides a method and system for ranking video retrieval. The method comprises the steps of obtaining a result candidate set related to a keyword of a video which is searched by a user according to text description information of the video; recording relevance information of each candidate video in the result candidate set relative to the keyword; deleting videos of the first category in the result candidate set according to video information stored in a first preset database; inquiring and obtaining quality information of each candidate video in the result candidate set where the videos of the first category are deleted from a second preset database, and inquiring and obtaining weight-adjusting information, aiming at the keyword, of each candidate video in the result candidate set where the videos of the first category are deleted from a third preset database; obtaining ranking scores of all the candidate videos in the result candidate set where the videos of the first category are deleted according to the relevance information, the quality information and the weight-adjusting information; ranking the obtained ranking scores of all the candidate videos according to the descending order, and returning the candidate videos corresponding to the first K ranking scores to the user.

Description

technical field [0001] The invention relates to the technical field of search, in particular to a method and system for video search and sorting. Background technique [0002] With the rapid increase in the number of videos, video search has become an effective way for users to obtain the resources they need. At present, the main methods of video search are: 1) methods based on video text description information (such as title, cast and crew list, video introduction, etc.); 2) retrieval methods based on video key frame content. Although the method based on video key frame content can be used for video search, it is difficult to use it in the current video search system on a large scale due to the difficulty of extracting key frame content and the storage space of frame information. The search method of text description information is still the mainstream video search method. [0003] However, video search methods based on video text description information heavily rely on ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/735G06F16/738G06F16/7867
Inventor 陈英傑胡军王天畅
Owner BEIJING QIYI CENTURY SCI & TECH CO LTD
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