Smart-contract enabled decentralized knowledge fusion for blockchain-based conversation system

Abstract

Knowledge fusion can be used for global knowledge sharing and maintenance, and it has proven to benefit the performance of conversation systems. In the process of knowledge fusion in conversation systems, knowledge and contributions from multiple experts are easily tampered with, which results in biases in fusion results and their incentives. Blockchains promise tamper-proof, secure, and transparent systems. This study explores the feasibility and effectiveness of knowledge fusion based on blockchain by adopting a smart contract. First, a blockchain-based framework for decentralised knowledge fusion for a conversation system is presented. Second, a concrete scheme of blockchain-based decentralised knowledge fusion is designed and implemented with smart contracts to ensure security execution and fairness. Finally, a use case-based evaluation to prove the effectiveness of the proposed decentralised knowledge fusion method is presented.