TRUST CALCULATION DEVICE, APPARATUS AND PROGRAM FOR CALCULATING TRUST

摘要

PROBLEM TO BE SOLVED: To quantitatively evaluate the trust of a party which is not in direct contact with the evaluator without being based on a probability theory.;SOLUTION: ≤ is a binary relation defined as t≤t' iff (exists)t₁, t₂ t+t₁=t₂*t'. The parallel synthesis + and series synthesis * of trusts are defined so that the binary relation satisfies the formulae t≤t" in the case of reflectivity: t≤t, transitivity: t≤t' and t'≤t"; t=t' in the case of anti-symmetry: t≤t' and t'≤t; t"+t≤t"+t' in the case of depletion: t*t'≤t', monotonicity: t≤t'; t"+t≤_Δtt"+t' and t"*t≤_Δtt"*t' in the case of quasi-distributivity: t*(t'+t")≤t*t'+t*t", strong monotonicity: t≤_Δtt'. A response reception part 13 receives a plurality of trusts relating to a participant in a calculation target. A synthetic operation part 14 synthesizes the plurality of trusts with the use of the parallel synthesis + and the series synthesis *, and calculates a trust calculation result for the participant in the calculation target.;SELECTED DRAWING: Figure 7;COPYRIGHT: (C)2017,JPO&INPIT