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A Construction Method of Medical Intelligent Question Answering System Based on Attention Mechanism

A technology of intelligent question answering and construction method, applied in the construction field of medical intelligent question answering system, can solve problems such as large amount of information, medical information difficult to meet the needs of users' health, and lengthy results.

Active Publication Date: 2021-04-02
BEIJING UNIV OF TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When people search for medical information, the number of results returned by the search engine is large, the amount of information is large, and the returned results are lengthy. Unprocessed medical information is difficult to meet the needs of users for health.

Method used

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  • A Construction Method of Medical Intelligent Question Answering System Based on Attention Mechanism
  • A Construction Method of Medical Intelligent Question Answering System Based on Attention Mechanism
  • A Construction Method of Medical Intelligent Question Answering System Based on Attention Mechanism

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Embodiment Construction

[0076] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0077] according to figure 1 , 2 As shown, the method proposed by the present invention is realized in the following steps successively (taking certain medical disease data as an example):

[0078] Step (1) Data acquisition and preprocessing

[0079] A medical question-and-answer data set QA is collected from a department of a medical website. There are a total of 3415 question-answer pairs, namely n=3415. There are 6 answers in each answer list A, and A={a 1 ,a 2 ,a 3 ,a 4 ,a 5 ,a 6}. Some medical question-answer pairs are shown in Table 1:

[0080] Table 1 Some examples of medical question-answer pairs

[0081]

[0082] (1.2) Segment the medical question-and-...

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Abstract

The invention proposes a construction method of a medical intelligent question answering system based on an attention mechanism. Firstly, medical question-and-answer data is collected, and Word2vec technology is used for vector representation. For each question, the sentence with the highest semantic similarity is selected from the answer data as the standard answer, and a medical knowledge question-answer training database is constructed. Then construct the deep learning model of the medical intelligent question answering system based on the attention mechanism: including using the bidirectional LSTM to semantically encode and stitch the question and answer data, and add the attention mechanism; the semantic coding after splicing is input into the bidirectional LSTM for feature fusion , and finally the standard answer is output by the softmax function.

Description

technical field [0001] The invention belongs to the field of data mining, and in particular relates to a construction method of a medical intelligent question answering system based on an attention mechanism. Background technique [0002] With the vigorous development of Internet technology, the Internet has become an important source of information for people. People's access to information is mainly realized by search engines, which can help people find the information webpages that users need. Question Answering System (QA) is an advanced form of information retrieval system, which can answer the questions raised by users in natural language in accurate and concise language. The main reason for the rise of its research is people's demand for fast and accurate access to information. [0003] When people search for medical information, the number of results returned by the search engine is large, the amount of information is large, and the returned results are lengthy. Un...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/332G06F40/30G06F40/289G16H80/00G06K9/62G06N3/04G06N3/08
CPCG06F16/3329G16H80/00G06N3/08G06N3/044G06N3/045G06F18/22
Inventor 刘磊吴爽孙应红侯良文李静
Owner BEIJING UNIV OF TECH
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