Multimedia resource quality assessment method and apparatus

A multimedia resource and quality assessment technology, applied in multimedia data retrieval, metadata multimedia retrieval, multimedia data clustering/classification, etc., to achieve strong operability

Active Publication Date: 2016-08-10
ALIBABA (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, evaluating the quality of multimedia resources based only on their native attributes cannot meet the needs of users in many cases. Therefore, the quality of multimedia resources cannot be described only by native attributes such as network transmission and resolution.

Method used

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  • Multimedia resource quality assessment method and apparatus
  • Multimedia resource quality assessment method and apparatus
  • Multimedia resource quality assessment method and apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] figure 1 A flowchart showing a method for evaluating the quality of multimedia resources according to Embodiment 1 of the present invention. Such as figure 1 As shown, the quality assessment method can mainly include:

[0055] Step S100: Determine the cumulative distribution vector of the multimedia resource according to the indicator data used to characterize the user behavior of the multimedia resource.

[0056]Users can use terminal equipment to play multimedia resources. Wherein, the terminal device may be, for example, a mobile phone, a mobile Internet device (English: Mobile Internet Device, MID for short), a personal digital assistant (English: Personal Digital Assistant, PDA for short), a notebook, a desktop computer, a smart TV, and the like. The multimedia resource may be video, audio, picture, etc., for example.

[0057] It should be noted that the multimedia resources of the present invention are not limited to the above three examples, and those skill...

Embodiment 2

[0091] Since user behavior can include multiple categories, the quality evaluation of multimedia resources can be performed by using only one type of user behavior index data, or by using statistical methods such as multi-type user behavior index data. quality assessment.

[0092] For example, the quality score of each type of user behavior may be calculated separately, and then the quality scores of all types of user behaviors may be averaged to determine the quality score of the multimedia resource.

[0093] Those skilled in the art can understand that averaging is only one implementation, and other implementations, such as weighted summation, can also be used, and the basic purpose of the present invention can still be achieved.

[0094] figure 2 A flowchart showing a method for evaluating the quality of multimedia resources according to Embodiment 2 of the present invention. Such as figure 2 As shown, the quality assessment method can mainly include:

[0095] Step S2...

Embodiment 3

[0114] Figure 3a A flowchart showing a method for evaluating the quality of multimedia resources according to Embodiment 3 of the present invention. In the embodiment of the present invention, the multimedia resource quality evaluation method of the present invention will be exemplified by using the index data of user behavior of playing type, that is, the playing completion ratio of multimedia resources (for example, video viewing completion ratio).

[0115] Step 301, using the video playback log of a certain video website as a basic data source. The original video playback log is a data table containing at least the following four-tuple: the four-tuple is {Vids,PlayLength,FullLength,Time}, where Vids represents the collection of videos watched; PlayLength represents the cumulative video watched each time The length of time, usually in seconds; FullLength indicates the total time length of the video being watched; Time indicates the timestamp when the viewing behavior occur...

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Abstract

The invention discloses a multimedia resource quality assessment method and apparatus. The multimedia resource quality assessment method comprises the steps of according to index data used for describing a user behavior of a multimedia resource, determining an accumulative distribution vector of the multimedia resource; according to the accumulative distribution vector, determining an upper boundary vector and a lower boundary vector of the multimedia resource; and according to the accumulative distribution vector, the upper boundary vector and the lower boundary vector, determining a quality score of the multimedia resource. According to the method and apparatus, the quality of the multimedia resource can be described more accurately and the operability is very high; and in addition, after the quality of the multimedia resource is assessed by utilizing the multimedia resource quality assessment method disclosed by an embodiment of the invention, the multimedia resource can be dynamically optimized, sorted and recommended by obtaining feedbacks of online results, so that final multimedia resource sorting and recommendation results can be given.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular to a method and device for evaluating the quality of multimedia resources. Background technique [0002] Existing quality calculation and quality evaluation of multimedia resources mainly use the native attributes (machine attributes) of the multimedia resources themselves as assessment indicators. For example, the overall quality of multimedia resources is judged by static attributes such as audio and video signal quality and distortion degree. Or, on the basis of the quality assessment method, some user-oriented attributes such as frame rate and definition are added to further judge the overall quality of the multimedia resource. There are also some quality assessment methods that judge the overall quality of multimedia resources by examining the network characteristics of the multimedia resources. For example, the overall quality of multimedia resources can be judged by ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/40G06F16/48G06F16/9535G06F16/00G06F16/435G06F16/438G06F16/45G06F16/483
Inventor 魏博齐志兵王远图马广续刘宇平尹玉宗姚键潘柏宇王冀
Owner ALIBABA (CHINA) CO LTD
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