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Question and answer system implementation method based on Web

A technique for implementing methods and question-answering systems, applied in special data processing applications, instruments, electrical digital data processing, etc.

Inactive Publication Date: 2018-11-13
深圳智能思创科技有限公司
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  • Description
  • Claims
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Problems solved by technology

However, with the crazy growth of Internet data, the shortcomings of search engines have gradually emerged

Method used

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  • Question and answer system implementation method based on Web
  • Question and answer system implementation method based on Web
  • Question and answer system implementation method based on Web

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Experimental program
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Embodiment Construction

[0030] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0031] Such as figure 1 As shown, a web-based question answering system implementation method of the present invention includes: a question analysis module, an information retrieval module and an answer extraction module.

[0032] Each module is described in detail below.

[0033] 1. Problem analysis module

[0034] 1.1 Module function

[0035] The main goal of the question analysis module is to understand the user's query intent. This article analyzes the user's problem in a variety of ways to understand the purpose of the user's question:

[0036] 1) Question vectorization: the text representation of the question can be convenient for people to read, and the vector representation of the question can be convenient for computer use. After converting a question into a vector, the resulting question vector can help in other steps of questio...

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Abstract

The invention relates to a question and answer system implementation method based on Web. The method comprises the steps of S1, performing question analysis: analyzing questions raised by users, specifically, classifying the questions and extracting keywords; and meanwhile, vectorizing the questions, and retrieving existing question and answer pairs similar to the questions; S2, performing information retrieval: generating different query links according to the questions and different search engines, and then obtaining corresponding web pages by requesting the links; and S3, performing answerextraction: finding out optimal answers from web page fragments returned in the information retrieval step according to inquiry intentions of the users; and when the answers are extracted, extractinga plurality of possible candidate answers, and then obtaining the optimal answers by scoring and sorting the candidate answers. According to the method, the accuracy of answer extraction is improved from two aspects of candidate answer extraction and candidate answer sorting; and models and rules are used for optimizing the extraction process of the Chinese answers.

Description

technical field [0001] The invention relates to a method for realizing a web-based question answering system, which belongs to the technical field of natural language processing. Background technique [0002] As a mature information retrieval technology, search engine technology can meet most of the information needs of users. However, with the crazy growth of Internet data, the shortcomings of search engines have gradually emerged. In order to improve the user experience of information retrieval, question answering systems that directly use natural language as input and output have become a research hotspot. Among many question answering systems, there is a kind of question answering system directly built on the existing search engine, this kind of question answering system is called Web-based QA system (Web-based QA, referred to as WQA in this paper). [0003] After the user submits a question expressed in natural language to the WQA system, the WQA system will use vario...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 李舟军陈小明李水华
Owner 深圳智能思创科技有限公司
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