Alapfogalmak
It is feasible to automatically generate smart contract code based on a semantic knowledge graph, in a way that respects the economic rules of blockchain, to enable trustworthy healthcare decision-making in a distributed setting.
Kivonat
The content discusses a method for generating smart contracts from semantic knowledge graphs to enable trustworthy healthcare decision-making in a distributed setting.
Key highlights:
- Health 3.0 marks a shift towards patient-centric and distributed healthcare, where blockchain can act as a neutral intermediary for trustworthy decision-making.
- The authors propose encoding high-level smart contract logic using a semantic knowledge graph, with concepts and relations from domain standards like HL7 FHIR.
- A hybrid on-/off-chain solution is used, where off-chain code generation compiles the knowledge graph into a concrete smart contract, which is then deployed on-chain.
- This approach respects the economic rules of blockchain, where heavier computations result in higher execution costs.
- The authors evaluate the generated smart contracts in terms of correctness and execution cost on the blockchain, finding they perform well.
- Future work includes supporting more expressive rules, exploring large language models, and evaluations on other blockchains.
Statisztikák
Smart contracts were generated for 3 health insurance cases from Medicare.
The generated smart contracts were evaluated in terms of correctness and execution cost ("gas") on the blockchain.
Idézetek
"Blockchain can deploy decision making in a distributed setting as a neutral intermediary, i.e., without any party having to entrust another party with (a) their privacy-sensitive health data, or (b) executing the particular decision making process."
"Our choice for off-chain code generation avoids on-chain rule engines, with unpredictable and likely higher computational cost. It is thus in line with the economic rules of blockchain, where heavier computations result in higher execution costs."