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Block chain medical data sharing excitation method based on Shapley value

A technology of medical data and Shapley value, applied in the field of blockchain network applications

Active Publication Date: 2019-08-09
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the existing block chain medical data sharing incentive problem, and propose a block chain medical data sharing incentive method based on the Shapley value, which distributes the income generated in the medical data sharing cooperation, and realizes the cooperation Continuous incentives for alliance members to promote cooperation in medical data sharing

Method used

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  • Block chain medical data sharing excitation method based on Shapley value
  • Block chain medical data sharing excitation method based on Shapley value
  • Block chain medical data sharing excitation method based on Shapley value

Examples

Experimental program
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Embodiment 1

[0057] This embodiment establishes a medical data sharing cooperation model based on the Shapley value-based block chain medical data sharing incentive method of the present invention, such as figure 1 shown.

[0058] figure 1 The following blockchain medical data sharing scenario is described: there are 3 hospitals in the system that can provide medical data, 2 scientific research institutions that need to use medical data, and 5 blockchain users in the network are authorized to become consensus nodes, namely The Healthcare Data Sharing Partnership The number of data owners in Number of data requesters Number of Consensus Nodes The medical data sharing process is carried out on the alliance chain based on the practical Byzantine fault-tolerant algorithm, and the generated data is verified and recorded on the blockchain by consensus nodes. All consensus nodes did not fail when generating all blocks, and all responded consistently, so they are all normal nodes.

[005...

Embodiment 2

[0077] This embodiment compares the results of the method of the present invention in various scenarios, and verifies that the incentive method of the present invention has an incentive effect on data owners. Hypothetical Healthcare Data Sharing Collaborative Alliance Contains 2 data owners, 5 consensus nodes and 1 data requester, namely Change Two data owners H in 1 and H 2 Corresponding F1-index with The ratio of make Follow steps 1 to 4 to calculate the income distribution results of the alliance members, and observe the set of data owners. Two data owners H 1 and H 2 Respective revenues account for healthcare data-sharing collaborative alliances The proportion of the total income is shown in Table 2 and Table 3.

[0078] Table 2 data owner H 1 The calculation result of the income distribution

[0079]

[0080] Table 3 data owner H 2 The calculation result of the income distribution

[0081]

[0082] As can be seen from Table 2 and Table 3, for ...

Embodiment 3

[0084] In this embodiment, the results of the method of the present invention are compared in various scenarios, and it is verified that the incentive method of the present invention has an incentive effect on the data requester. Assume that the medical data sharing cooperative alliance includes several data owners, 5 consensus nodes and 1 data requester, namely Hypothetical collection of data owners The total income of Consensus node set The total revenue of data requester collection The total revenue of For collections of arbitrary data owners have Change the number of data requesters so that the number of data owners Follow steps 1 to 4 to calculate the income distribution results of cooperative alliance members, and observe the total income of data owners Total income of consensus nodes and the total revenue of the data requester Accounting Healthcare Data Sharing Cooperative Alliance The proportion of the total revenue, the result is as follows ...

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Abstract

The invention relates to a block chain medical data sharing excitation method based on a Shapley value, and belongs to the technical field of block chain network application. A block chain medical data sharing excitation method is established; alliance revenue is distributed among cooperation alliance members by using a Shapley value method, the excitation problem of medical data sharing in a block chain application scene is solved, and the proposed block chain medical data sharing excitation method can effectively excite the cooperation alliance members to participate in cooperation and sharereal data. According to the method, the contribution degree of a data owner and the weights of all members in a cooperation alliance are considered, so that a revenue distribution scheme based on a Shapley value method is suitable for a medical data sharing scene with contribution degree difference; a fair reward mechanism is formulated for consensus nodes in an alliance chain network according to practical Bayer's space fault-tolerant algorithm characteristics applied to the alliance chain.

Description

technical field [0001] The invention relates to a blockchain medical data sharing incentive method based on the Shapley value, which aims to evaluate the contribution of participants in the data sharing cooperation in the blockchain scenario, realize the reasonable distribution of cooperation benefits, and encourage relevant users to actively participate Cooperation and implementation of standardized operations belong to the field of blockchain network application technology. Background technique [0002] With the development of information technology, the healthcare industry has more and more room for development. Electronic Medical Record (EMR) has become a product of medical information digitization. Generated in and realize the informatization management of medical data through EMR. By combining medical big data and artificial intelligence, scientific diagnosis of various diseases and patient pathological analysis can be realized, the accuracy and efficiency of medical ...

Claims

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Application Information

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IPC IPC(8): G06F16/27G16H10/60G16H40/20
CPCG16H10/60G16H40/20G06F16/27
Inventor 沈蒙董慧祝烈煌唐湘云
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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