Multimedia questioning-answering system and method

A question answering system and multimedia technology, applied in multimedia data retrieval, multimedia data query, metadata multimedia retrieval, etc., can solve problems such as insufficient intuitive answers, insufficient content, and insufficient user experience, and achieve intelligent information acquisition. , the answer content is vivid, the answer is more effective

Inactive Publication Date: 2013-12-04
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a multimedia question answering system and method, aiming to solve the problem that the answers related to the questions output by the existing text question answering system are not intuitive enough, the content is not rich enough, and the user experience effect is not good enough

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Embodiment 1

[0026] figure 1 The structure of the multimedia question answering system provided by the first embodiment of the present invention is shown, and for the convenience of description, only the parts related to the embodiment of the present invention are shown.

[0027] The multimedia question answering system comprises a question input unit 11, an analysis unit 12, a category judgment unit 13, a similarity acquisition unit 14 and a multimedia answer output unit 15, wherein:

[0028] The question input unit 11 is configured to receive a text question input by the user.

[0029] The parsing unit 12 is configured to parse and acquire feature information and semantic categories of the text question.

[0030] Among them, the semantic categories or semantic keywords are multi-source information, including not only text keywords extracted by natural language processing tools, but also visual keywords composed of visual concept keywords, character names, landmark names, etc., such as t...

Embodiment 2

[0052] figure 2 It shows the structure of the multimedia question answering system provided by the second embodiment of the present invention, specifically the structural diagram of the establishment of data correspondence in the multimedia database in the multimedia question answering system. part.

[0053] Based on the detailed description in the first embodiment above, the multimedia question answering system also includes a collection unit 21, a feature extraction unit 22, a multimedia judgment unit 23, a multimedia answer acquisition unit 24, a category acquisition unit 25 and a relationship establishment unit 26, wherein:

[0054] The collection unit 21 is used to collect various text questions and corresponding text answers in the network question-and-answer community.

[0055] In the embodiment of the present invention, the collection unit 21 is mainly used to obtain a set of text questions and their corresponding text answers in the offline phase of the online quest...

Embodiment 3

[0089] image 3 The implementation process of the multimedia question answering method provided by the third embodiment of the present invention is shown, and the details are as follows:

[0090] In step S301, a text question input by a user is received.

[0091] In step S302, analyze and acquire the feature information and semantic category of the text question.

[0092] Among them, the semantic categories or semantic keywords are multi-source information, including not only text keywords extracted by natural language processing tools, but also visual keywords composed of visual concept keywords, character names, landmark names, etc., such as the sea , flower, mountain, food, vacation and other semantic categories. The feature information includes a keyword bag-of-words model, a double-word text feature, a main keyword, a list of related words, and the like.

[0093] In the specific implementation process, when a user enters a text question in a search engine or a specific...

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Abstract

The present invention is applicable to the technical field of network question and answer and provides a multimedia question and answer system and method. The system comprises: a question input unit, configured to receive a text question input by a user; an analysis unit, configured to acquire feature information and a semantic class of the text question; a class determination unit, configured to determine whether the semantic class exists in a preset multimedia database; a similarity acquisition unit, configured to match the feature information with all text features corresponding to the semantic class in the database when the determination result is yes, and acquire the similarity between each text feature and the feature information; a multimedia answer output unit, configured to acquire a corresponding text feature when the similarity is greater than a preset threshold value, and output multimedia answer information corresponding to the text feature and prestored in the multimedia database. The present invention makes an answer to a text question input by a user more effective, intuitive, vivid, and rich, thereby significantly improving user experience.

Description

technical field [0001] The invention belongs to the technical field of network question answering, in particular to a multimedia question answering system and method. Background technique [0002] Question answering system is an advanced form of information retrieval system. From its working principle, there are automatic question answering system and non-automatic question answering system; from the scope of knowledge covered by the system, it can be divided into closed domain (based on domain database) and open domain. Field (web-based) of two kinds. With the popularity of the Internet and the exponential growth of network users, the automatic question answering system based on the network has become a research direction that has attracted much attention and has broad development prospects in the field of artificial intelligence and natural language processing. It comprehensively uses technologies such as knowledge representation, information retrieval, and natural langua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F17/30023G06F17/30G06F16/43H04L51/02G06F16/285G06F16/48G06F40/205
Inventor 刘扬王栋刘洁
Owner HUAWEI TECH CO LTD
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