US 12,235,963 B2
Provenance information based trust evaluation method and apparatus
Seok Won Lee, Suwon-si (KR); and Hyo Cheol Lee, Suwon-si (KR)
Assigned to AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATON FOUNDATION, Suwon-si (KR)
Filed by AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATON FOUNDATION, Suwon-si (KR)
Filed on Dec. 5, 2022, as Appl. No. 18/074,968.
Claims priority of application No. 10-2021-0171954 (KR), filed on Dec. 3, 2021.
Prior Publication US 2023/0177160 A1, Jun. 8, 2023
Int. Cl. G06F 21/57 (2013.01)
CPC G06F 21/57 (2013.01) 12 Claims
OG exemplary drawing
 
1. A provenance information based trust evaluation method for selecting an interaction object of a self-adaptive system, the provenance information based trust evaluation method comprising:
transmitting an interaction request signal, by a communication module, to at least one neighbor;
receiving a response including provenance information, by the communication module, from the at least one neighbor;
regarding the at least one neighbor that transmits the response as at least one interaction object candidate and evaluating a final trust of the at least one interaction object candidate based on the provenance information included in the response by a processor; and
selecting an interaction object among the at least one interaction object candidate based on the final trust of each of the at least one interaction object candidate by the processor,
wherein the final trust is calculated based on a provenance trust of each of the at least one interaction object candidate and an influence of an interaction pattern,
wherein the provenance trust is calculated by following Equations 1 and 2:

OG Complex Work Unit Math
wherein PTi denotes a provenance trust for j, CRk denotes a k-th interaction result, and Δtk denotes a time when CRk and an interaction are performed,
wherein Δtk is calculated by Equation 2:

OG Complex Work Unit Math
wherein tcure denotes a current time, tk denotes a time when the interaction occurs, and λ denotes a decay constant.