Food safety intelligent question and answer reasoning method and device
A food safety and intelligent question answering technology, which is applied in the field of food safety, can solve problems such as poor interpretability and achieve the effect of improving interpretability
Active Publication Date: 2022-04-26
NORTH CHINA UNIVERSITY OF TECHNOLOGY
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[0005] The invention provides a food safety intelligent question-and-answer reasoning method and device, which are used to solve the defect of poor explainability in the reasoning process of food safety intelligent question-and-answer in the prior art
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[0061] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0062] Before explaining the embodiment of the present invention in detail, the knowledge map, intelligent question answering and multi-hop reasoning technologies involved in the embodiment of the present invention are briefly described.
[0063] The knowledge map technology can make the data have the advantages of high reliability, complete related information, and good visualization ef...
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The invention provides a food safety intelligent question and answer reasoning method and device. The method comprises the following steps: acquiring a head entity and a relationship of a food safety question sentence; inputting the head entity and the relationship into a dual-module iterative reasoning model for tail entity reasoning to obtain entity nodes and relationship edges associated with the head entity and the relationship; calculating scores of the entity nodes according to the entity nodes and the relation edges connected with the entity nodes, and selecting the entity node with the highest score as a tail entity of the food safety question sentence; wherein the dual-module iterative reasoning model comprises an extension module and a reasoning module. According to the method, entity nodes and relation edges associated with the head entity and the relation are expanded through cyclic iterative reasoning of the expansion module and the reasoning module, then the entity node with the highest score is selected as the tail entity to output the answer, the entity nodes and the relation edges between the head entity and the tail entity can be extracted, graphic interpretation is provided for prediction, and the prediction accuracy is improved. And the interpretability of the reasoning process is improved.
Description
technical field [0001] The invention relates to the technical field of food safety, in particular to a food safety intelligent question-and-answer reasoning method and device. Background technique [0002] Today, when the total amount of information is exploding and spreading so fast, the issue of food safety has always been a hot topic in society. Although food safety big data has great application value, it has the characteristics of large knowledge capacity, diverse sources, fast update speed, and low value density. It is difficult for traditional intelligence research and analysis technologies to establish correlations in massive information and realize intelligent reasoning. and decision making. [0003] Most of the existing food safety intelligent question answering methods adopt a single-step reasoning method, and use direct relations, that is, fact tuples in the knowledge graph, for learning and reasoning. However, food safety knowledge and food safety issues are b...
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IPC IPC(8): G06N5/04G06N5/02G06F16/36G06F16/332G06N7/00
CPCG06N5/045G06N5/025G06N5/022G06F16/367G06F16/3329G06N7/01
Inventor 史运涛白一贤李书钦刘伟川王力董哲殷翔周萌
Owner NORTH CHINA UNIVERSITY OF TECHNOLOGY