A Trust Risk Dynamic Management Mechanism Based on Third-Party Monitoring for the Conflict-Eliminating Process of...

Area of Science:

• Decision Sciences
• Social Network Analysis
• Risk Management

Background:

• Decision-making processes, especially in social networks, are susceptible to trust risks.
• These risks arise from insufficient, excessive, or blind trust among decision-makers (DMs).
• Conflict-Eliminating Process (CEP) aims to achieve consensus by reconciling opinion differences.

Purpose of the Study:

• To address trust risks in CEP for Social Network Group Decision Making (SNGDM) using third-party monitoring.
• To develop a trust risk analysis-based conflict-eliminating model for SNGDM.
• To propose a methodology for measuring and managing trust risks.

Main Methods:

• A model incorporating third-party monitoring of DM credibility and performance.
• Development of an objective evaluation matrix and a multi-attribute trust assessment matrix (MTAM).
• A trust risk measurement methodology to classify trust risk types and calculate a Trust Risk Index (TRI).

Main Results:

• A trust risk management mechanism is activated when TRI is unacceptable.
• Management policies include dynamically updating MTAM and suggesting modifications for DMs with high TRI.
• An optimization approach derives reliable aggregation weights from MTAM.

Conclusions:

• The proposed model effectively manages trust risks in CEP of SNGDM.
• Simulation experiments and an example validate the model's feasibility and effectiveness.
• The approach enhances the reliability of group decision-making in social networks.