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Medical knowledge map construction method and device

A technology of knowledge graph and construction method, which is applied in the fields of medical data mining, computer-aided medical procedures, medical informatics, etc., and can solve problems such as the loose connection of medical entities, and achieve the effect of solving the loose connection

Active Publication Date: 2018-09-04
HEFEI UNIV OF TECH
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Problems solved by technology

[0005] The embodiment of the present invention provides a method and device for constructing a medical knowledge map, which can make full use of data-driven and knowledge-driven to construct a knowledge map, and solve the clinical technical problem of loose connection between the same type of medical entities

Method used

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  • Medical knowledge map construction method and device
  • Medical knowledge map construction method and device
  • Medical knowledge map construction method and device

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Embodiment Construction

[0056] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0057] An embodiment of the present invention provides a method for constructing a medical knowledge map, such as figure 1 As shown, the method includes:

[0058] S101. Extracting target entities from medical data through word segmentation using natural language processing technology.

[0059] It is worth noting that an entity (Entity) refers to things that exist objectively and can be distinguished from each other, including specific people, things, things, abstract concepts or connections. The knowledge base contains various types of entities, for example, for medical knowledge , entities can include diseases, symptoms, examinations, tests, operations, medic...

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Abstract

The invention provides a medical knowledge map construction method and device so that a technical problem that the clinical medical entities with the same types are not connected tightly can be solvedby constructing a medical knowledge map by using data driving and knowledge driving fully. The method comprises: word segmentation is carried out by using a natural language processing technology anda target entity is extracted from medical data; according to an Apriori algorithm, a frequent item set of a specified class of entity is determined to obtain a specified class of entity group; an intensity index of each node is calculated by using the target entity and the entity group as nodes in a knowledge map, so that a medical knowledge map is obtained; and the constructed medical knowledgemap is stored in a Neo4j graph database.

Description

technical field [0001] The present invention relates to the field of medical technology, in particular to a method and device for constructing a medical knowledge map. Background technique [0002] The knowledge graph is a structured semantic knowledge base, which is used to describe the concepts and their relationships in the physical world in a symbolic form. Yes, entities are connected to each other through relationships to form a networked knowledge structure. [0003] At present, the application of knowledge graphs in the medical field is based on the human-machine question answering of medical knowledge graphs. Most of the related technologies extract keywords from users' questions as knowledge points, and perform one-to-one entity mapping in the database to find out Corresponding items of knowledge points, and then feedback the corresponding items as answers to users. [0004] It can be seen from the above that the existing medical knowledge map only establishes a o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16H50/70G06F17/30G06F17/27
CPCG06F40/289G16H50/70
Inventor 丁帅李玲杨善林王浩
Owner HEFEI UNIV OF TECH
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