Question answering system based on multisource heterogeneous data for medical field and implementing method thereof

A multi-source heterogeneous data, question answering system technology, applied in medical reference, digital data processing, healthcare informatics, etc., can solve the problems of less semantic information, single algorithm, single data source, etc., to improve the accuracy and reliability. Richness, alleviating the effect of single data source and effective utilization

Inactive Publication Date: 2018-06-01
哈尔滨福满科技有限责任公司
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Problems solved by technology

[0010] The present invention aims to solve the problem of single data source, single algorithm, and less semantic information considered in the existing medical health question answering system, and proposes a question answering system based on multi-source heterogeneous data for the medical field and an implementation method of the system

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  • Question answering system based on multisource heterogeneous data for medical field and implementing method thereof
  • Question answering system based on multisource heterogeneous data for medical field and implementing method thereof
  • Question answering system based on multisource heterogeneous data for medical field and implementing method thereof

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specific Embodiment approach 1

[0038] Specific implementation mode 1. Combination figure 1 This embodiment is described. In this embodiment, a question answering system based on multi-source heterogeneous data for the medical field is described. The question answering system includes a client and a server. The client initiates a request for an answer to the server. The medical and health question-and-answer data and the open knowledge graph obtain the answers, process and synthesize the answers and return them to the client.

[0039] In this embodiment, the client includes a web terminal and a mobile terminal.

specific Embodiment approach 2

[0040] Specific embodiment two, combine figure 2 This embodiment is described. In this embodiment, an implementation method of a question answering system based on multi-source heterogeneous data for the medical field is described. The specific process of the implementation method of the question answering system is as follows:

[0041] Step 1, collect Chinese corpus;

[0042] Collect medical and health question-and-answer data;

[0043] Collect medical and health text data with structured features, and transform the medical and health text data into a structured database;

[0044] Step 2, perform word vector training on the corpus data in the Chinese corpus collected in step 1, and save the model as the pre-trained word vector of the deep learning model;

[0045]Step 3. Use the pre-trained word vector in step 2 to train the sequence-to-sequence network with an attention mechanism on the medical and health question-and-answer data collected in step 1, and the model generate...

specific Embodiment approach 3

[0062] Specific implementation mode three, this implementation mode is to further explain specific implementation mode two, the specific process of performing sequence-to-sequence network training with attention mechanism on data described in step 3 is:

[0063] Step 3-1, using the pre-trained word vector in step 2 to initialize all the words in the medical health question and answer data;

[0064] Step 3-2, using the memory network model to encode the user question, and obtain the encoded output value and hidden state;

[0065] Step 3-3, using the memory network model, combined with the attention mechanism, to decode the encoded output value, hidden state and input value of the user question, and obtain the predicted answer;

[0066] Step 3-4, calculate the loss function according to the decoded answer and the real answer;

[0067] Step 3-5, judge whether the loss parameter is converged, if not, execute step 3-6, if yes, execute step 3-7;

[0068] Step 3-6, perform backprop...

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Abstract

A question answering system based on multisource heterogeneous data for the medical field and an implementing method thereof belong to the field of medical health and are intended to solve the problemthat an existing medical health question-answering system has a single data source and a single algorithm with little semantic information considered. The question answering system based on multisource heterogeneous data for the medical field comprises a client and a server; the client issues an answer acquisition request to the server; the server acquires answers from a structured database, medical health question-answer pairs and an open knowledge map, processes and synthesizes the answers and returns the answers to the client. The question answering system is applicable to the field of medical health.

Description

technical field [0001] The invention relates to a question answering system based on multi-source heterogeneous data and an implementation method of the system, belonging to the field of medical care and health. Background technique [0002] With the development of the Internet, the Internet has accumulated a large number of medical and health information resources, and most of them are presented in the form of text question and answer pairs and text data. However, traditional search engines have many web page search results, and there may be many repeated and irrelevant contents. Especially for healthcare-related questions, it is difficult for users to distinguish reliable and unreliable answers using search engines. Therefore, there is an urgent need for a professional and reliable knowledge acquisition system in the medical and health field to make full use of network health information resources. [0003] Question answering system, as an important branch of natural lan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G16H70/00
CPCG06F16/258G06F16/3329G06F16/337G06F16/374
Inventor 赵铁军关毅李岳朱聪慧
Owner 哈尔滨福满科技有限责任公司
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