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Method and device for determining weights of key words of multimedia resources

A technology of multimedia resources and keywords, applied in the information field, can solve problems such as high consumption of computing resources, low accuracy, and low efficiency, and achieve the effects of improving accuracy and efficiency, improving effects, and reducing consumption

Inactive Publication Date: 2017-03-08
ALIBABA (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the technical problem to be solved by the present invention is that the accuracy rate of determining the weight of keywords of multimedia resources is low, the consumption of computing resources is large, and the efficiency is low

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  • Method and device for determining weights of key words of multimedia resources
  • Method and device for determining weights of key words of multimedia resources
  • Method and device for determining weights of key words of multimedia resources

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Embodiment 1

[0029] figure 1 A flow chart showing the implementation of the method for determining the weight of keywords of multimedia resources according to an embodiment of the present invention. The execution subject of this embodiment may be a server, which is not limited here. Such as figure 1 As shown, the method mainly includes:

[0030] In step S101, a list of multimedia resources corresponding to the target user is determined according to historical data of multimedia resources viewed by the target user.

[0031] Wherein, multimedia may be a combination of multiple media, for example, may include multiple media forms such as text, sound, and image. For example, a multimedia resource can be a video.

[0032] As an example of the embodiment of the present invention, each user's daily viewing sequence of multimedia resources can be extracted from the original log data of users viewing multimedia resources in the last 180 days, and can be sorted according to the order of viewin...

Embodiment 2

[0093] Figure 7 A structural block diagram of an apparatus for determining the weight of a keyword of a multimedia resource according to another embodiment of the present invention is shown. Such as Figure 7 As shown, the device includes: a multimedia resource list determination module 71, which is used to determine the multimedia resource list corresponding to the target user according to the historical data of the target user viewing multimedia resources; For each multimedia resource, the weight of each keyword is determined according to the number of times each keyword of the multimedia resource appears in the context window corresponding to the multimedia resource, wherein the context window corresponding to the multimedia resource is included in the context window of the multimedia resource Multiple multimedia resources adjacent to the multimedia resource in the multimedia resource list.

[0094] Figure 8 An exemplary structural block diagram of an apparatus for det...

Embodiment 3

[0120] Figure 9 A structural block diagram of a device for determining the weight of a keyword of a multimedia resource according to another embodiment of the present invention is shown. The device 1100 for determining the weight of keywords of multimedia resources may be a host server with computing capabilities, a personal computer PC, or a portable portable computer or terminal. The specific embodiments of the present invention do not limit the specific implementation of the computing nodes.

[0121] The device 1100 for determining the weight of keywords of multimedia resources includes a processor (processor) 1110 , a communication interface (Communications Interface) 1120 , a memory (memory) 1130 and a bus 1140 . Wherein, the processor 1110 , the communication interface 1120 , and the memory 1130 communicate with each other through the bus 1140 .

[0122] The communication interface 1120 is used for communicating with network devices, where the network devices include,...

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Abstract

The invention relates to a method and a device for determining the weights of key words of multimedia resources. The method comprises the following steps: determining a multimedia resource list corresponding to a target user according to historical data of multimedia resources watched by the target user; for each multimedia resource in the multimedia resource list, determining the weights of all the key words according to the occurring times of all the key words of the multimedia resources in context windows corresponding to the multimedia resources, wherein the context windows corresponding to the multimedia resources comprise a plurality of multimedia resources adjacent to the multimedia resources in the multimedia resource list. The method and the device have the advantages that the accuracy and the efficiency for determining the weights of the key words of the multimedia resources can be improved, and the consumption for computing resources can be reduced, so that the intelligent recommendation and searching effect of the multimedia resources can be improved and the user experience can be improved.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a method and device for determining the weight of keywords of multimedia resources. Background technique [0002] In the application fields of intelligent recommendation and retrieval of multimedia resources such as video, accurately determine the weight of keywords of multimedia resources, so as to accurately "characterize" the characteristics of multimedia resources based on keywords and corresponding weights, and improve the efficiency of multimedia resource recommendation and retrieval and accuracy are important. Taking video as an example, in related technologies, there are mainly three methods for calculating the weight of video keywords. The first is a calculation method based on the TF-IDF (Term Frequency-Inverse Document Frequency) formula. In this method, given the file information describing the video (such as video title or video introduction), calculate the do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/48
Inventor 罗川汪飞王晓龙单明辉王建宇顾思斌潘柏宇
Owner ALIBABA (CHINA) CO LTD
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