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Close contact person infection risk assessment method and device, electronic equipment and storage medium

A technology of risk assessment and close connection, applied in the direction of epidemic warning system, medical informatics, computer-aided medical procedures, etc., can solve the problems of low scalability and large limitations, achieve the effect of visual representation and improve the efficiency of risk assessment

Active Publication Date: 2021-07-23
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the epidemic prevention research based on computer simulation is very dependent on data and precise parameters (initial infection of the population, virus transmission parameters, etc.), and the expansion is not high and the limitations are relatively large.

Method used

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  • Close contact person infection risk assessment method and device, electronic equipment and storage medium
  • Close contact person infection risk assessment method and device, electronic equipment and storage medium
  • Close contact person infection risk assessment method and device, electronic equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] figure 1 It is a schematic flowchart of a method for assessing the infection risk of close contacts provided by Embodiment 1 of the present invention. Such as figure 1 As shown, the method for assessing the infection risk of close contacts provided by Embodiment 1 of the present invention includes:

[0030] S110. Obtain a close-connected crowd network, where the close-connected crowd network includes at least one community, and the community includes multiple nodes.

[0031] Specifically, the close crowd network is composed of trajectory information of multiple users (or individuals), which can reflect the local characteristics of user behavior and the network between them. The close crowd network is updated over time. At least one community is included in the close-knit crowd network, and the community includes multiple nodes, a node is a user, and each node has a unique user ID. When there is direct contact between two nodes, the two nodes are connected by an edge;...

Embodiment 2

[0040] figure 2 It is a schematic flowchart of a method for assessing the infection risk of close contacts provided by Embodiment 2 of the present invention. This embodiment is a further refinement of the above-mentioned embodiment. Such as figure 2 As shown, the infection risk assessment method for close contact personnel provided by Embodiment 2 of the present invention includes:

[0041] S210. Obtain historical track information of the user within a preset time zone.

[0042]Specifically, the user's historical track information refers to track data of the user's daily activities, such as GPS (Global Positioning System, Global Positioning System) data, that is, user track information at historical time. User history track information usually includes user ID, time frame, longitude coordinates and latitude coordinates. In the GPS track data, the time is in frames, and the time of a day is broken down into 480 frames, and each frame is 3 minutes, that is, the user's histo...

Embodiment 3

[0086] image 3 It is a schematic flowchart of a method for identifying close-knit groups provided by Embodiment 3 of the present invention. This embodiment is a further refinement of the above-mentioned embodiments. Such as image 3 As shown, the close-contact group identification method provided by Embodiment 3 of the present invention includes:

[0087] S301. Obtain historical track information of a user within a preset time zone.

[0088] S302. Traversing through the historical track information of the users, and determining whether contact occurs between two users.

[0089] S303. If contact occurs between two users, establish a connection edge between the two users to form a user association network.

[0090] Specifically, the user historical track information includes multiple pieces of user track information. When there is contact between two users, it can be considered that the two belong to the close population. The method for determining whether contact occurs b...

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Abstract

The embodiment of the invention discloses a close contact person infection risk assessment method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining a close contact person network which comprises at least one community, wherein the community comprises a plurality of nodes; initializing the community according to the node type of each node in the at least one community; updating infection parameters of each node in the at least one initialized community based on a label propagation algorithm; and determining the infection risk level of the corresponding node according to the infection parameter of each node. According to the embodiment of the invention, the infection risk of the close contact person is rapidly determined, and the risk assessment efficiency is improved; and the infection risk can be quantified so that the infection risk of the close connection personnel can be more intuitively expressed, and the adoption of epidemic situation protection measures is more facilitated.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of epidemic prevention and control, and in particular to a method, device, electronic equipment and storage medium for assessing the infection risk of close contacts. Background technique [0002] At present, the research on the optimization of protective measures and risk assessment for the new coronavirus mainly focuses on the method of using the epidemiological infection model to conduct computer-based simulation experiments, that is, to use the currently public effective data combined with the virus transmission model to analyze the development trend of the new coronavirus. Prediction and evaluation of current epidemic prevention measures are the current mainstream research methods. Generally speaking, this type of research will make full use of various effective data to simulate the process of disease transmission, even high-precision simulations that are accurate to individual...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16H50/80
CPCG16H50/80Y02A90/10
Inventor 宋轩莫宇张浩然冯德帆唐之遥
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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