Automatic question-answering method and system

A technology of automatic question answering and text information, applied in special data processing applications, knowledge expression, instruments, etc., can solve problems such as low system accuracy and recall rate, narrow coverage of Chinese knowledge base, user experience damage, etc., to improve accuracy rate and recall, improve experience, and increase content coverage

Active Publication Date: 2007-09-05
TENCENT TECH (SHENZHEN) CO LTD
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AI Technical Summary

Problems solved by technology

[0018] Because there are so many words that can replace "Shanghai", the above problem cannot be solved by adding more question and answer sentence pairs
In addition, it is not feasible to replace "Beijing" with any word wildcard, because the user may enter "were you born in 76?", which will also be matched successfully, resulting in an error in the answer
[0019] To sum up, simple pattern matching technology is not suitable for Chinese automatic question answering system, resulting in narrow coverage of Chinese knowledge base, low accuracy rate and recall rate of the system, which will cause damage to user experience

Method used

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Embodiment Construction

[0055]Referring to Fig. 1, the automatic question answering method in Chinese will be described in detail.

[0056] This technical solution only provides a specific embodiment, and different pattern matching methods can be selected to use part-of-speech wildcards in actual application.

[0057] Step S001: the receiving end receives the text information input by the user. In this preferred embodiment, the automatic question answering system 100 receives the text information input by the user through the network interface module 101 .

[0058] Step S002: Segment the received text information, and output a series of word and part-of-speech tagging information. In this preferred embodiment, the Chinese word segmentation and part-of-speech tagging module 102 invokes the word segmentation and part-of-speech tagging methods in the computational language knowledge base, performs segmentation processing on the received text information, and outputs the word segmentation and part-of-sp...

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Abstract

An automatically question-answering method includes dividing inputted writing information, carrying out seeking according to divided result, updating result set by utilizing matched seek-result, judging whether match of inputted writing information is finished or not and selecting the answer according to result set if said match is finished. The system used for realizing said method is also disclosed.

Description

technical field [0001] The invention relates to a computer application system and method, specifically, an automatic question answering method using language matching technology and an automatic language question answering system. Background technique [0002] Most of the existing language automatic question answering systems are implemented by simple pattern matching technology. The method is to start from the first word of the sentence and match the sentence entered by the user with the sentence in the knowledge base. If two words If it is the same, continue to match the next word. Any word wildcards may be used in the middle to ignore some less critical words in the sentence entered by the user. Repeat this process until the entire sentence entered by the user is matched. If the match is successful, the Answers corresponding to sentences in the knowledge base are returned to the user. However, compared with foreign languages, Chinese has the characteristics of flexible w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06N5/02G06F17/30
Inventor 杨海松邓大付余祥鑫
Owner TENCENT TECH (SHENZHEN) CO LTD
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