Authors:
Liuwen Yu
1
;
2
;
Mirko Zichichi
3
;
1
;
Réka Markovich
2
and
Amro Najjar
2
Affiliations:
1
University of Bologna, Italy
;
2
University of Luxembourg, Luxembourg
;
3
Universidad Politécnica de Madrid, Spain
Keyword(s):
Argumentation, Negotiation, Distributed Ledger Technologies, Blockchain, Smart Contracts, Trust Services.
Abstract:
The advent of Distributed Ledger Technologies (DLTs) has paved the way for a new paradigm of traceability in all information systems areas. In the context of decision-making processes, however, DLTs are generally used only to trace the end results. In this work we argue that a reasoning system can be put in place for making these decisions, in order to enhance auditability, transparency, and finally to provide explainability. We propose the Intelligent Human-input-based Blockchain Oracle (IHiBO), a cross-chain oracle that enables the execution and traceability of formal argumentation and negotiation processes, involving the intervention of human experts. We take as reference the decision-making processes of fund managements, as trust is of crucial importance in such “trust services”. The architecture and implementation of IHiBO are based on leveraging two-layer DLTs, smart contracts, argumentation and negotiation in a multi-agent setup. Finally, we provide some experimental results t
hat support our discussion, namely that in the use-case we have considered our methodology can increase trust from principals to trusted services.
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