An automatic question answering method and system

An automatic question answering and questioning technology, which is applied in the field of automatic question answering methods and systems based on resource bases, can solve the problems of excessive information redundancy, poor scalability, and too much relevant information, and achieves expanding the scope of knowledge fields and improving accuracy. , the information-rich effect

Inactive Publication Date: 2011-11-30
PEKING UNIV SHENZHEN GRADUATE SCHOOL
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AI Technical Summary

Problems solved by technology

However, these traditional search engines have many deficiencies. First, there are too many relevant information, and a large number of relevant web pages are returned. It is difficult for users to locate the required information quickly and accurately.
The second is to express the retrieval needs with the combination of keywords. Since people’s retrieval needs are often very complex and special, they cannot be expressed with a simple combination of several keywords. In this way, users do not express their retrieval intentions clearly. Naturally, there is no way for search engines t

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  • An automatic question answering method and system
  • An automatic question answering method and system
  • An automatic question answering method and system

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Embodiment Construction

[0020] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0021] A Chinese automatic question answering system that uses structured information as a resource library for answering questions, analyzes natural language questions raised by users into question points and condition points, and maps them to corresponding SQL (Structured Query Language, Structured Query Language) queries Statements to retrieve information from structured information as answers to questions. Structured information is table-based information. Each topic corresponds to a table. The information is organized and represented by field names, and the information content is field values. The automatic question answering method constructs the structured information of a topic as a resource library for answering questions for a topic, and the resource library can be obtained and edited from the Internet. The system inclu...

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Abstract

The invention discloses an automatic questioning and answering method and an automatic questioning and answering system, comprising the following steps: 1) a question analyzing step: separating the words of a natural question sentence and then identifying the words obtained after the words are separated by a question point/premise point identifying model so as to identify the question point and premise point of the question sentence; 2) an information retrieving step: querying an information resource library via the identified question point and premise point and extracting the query result. The information resource library is a structural information resource library. In the step 2), the question point in the question point/premise point data structure is used as a field for SQL query, and the premise point is used as a premise for SQL query. The automatic questioning and answering method and the automatic questioning and answering system enable people to understand the question better and provide correct answers by querying the structural information resource library via logic relationship of the question point and the premise point.

Description

technical field [0001] The invention relates to computer natural language processing technology, in particular to an automatic question answering method and system based on a resource library. Background technique [0002] With the popularization of the Internet, the information on the Internet is becoming more and more abundant, and now people can easily obtain all kinds of information they want through search engines. The more famous search engines are Google, Baidu and so on. Regardless of the content, these search engines can help people quickly find relevant web pages. Users only need to enter some keywords, and they will immediately search out relevant web pages. But there are many deficiencies in these traditional search engines. First, there are too many relevant information, and a large number of relevant web pages are returned, so it is difficult for users to quickly and accurately locate the required information. The second is to express the retrieval needs wit...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 徐伯星丛鹏飞杭诚方于雅洁卢佳
Owner PEKING UNIV SHENZHEN GRADUATE SCHOOL
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