Trust Revision for Conflicting Sources

Abstract

Sensors and information sources can produce conflicting evidence for various reasons, including errors and deception. When conflicting evidence is received, some sources produce more accurate evidence than others with regard to the ground truth. The reliability of sources can be expressed by assigning a level of trust to each source. In this situation, multiple fusion strategies can be applied: one strategy is to directly fuse the evidence based on a priori trust in each source, another strategy is to first revise a priori trust assignments as a function of the degree of conflict, before the evidence is fused. This paper focuses on the latter approach, and describes a method for applying trust revision in case of highly conflicting evidence. The trust revision method is expressed in the formalism of subjective logic.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2017
Accession Number
AD1027413

Entities

Organizations

  • University of Oslo

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Base Lines
  • Binomials
  • Coordinate Systems
  • Intelligence Analysis
  • Literature
  • Mechanics
  • Notation
  • Probability
  • Probability Density Functions
  • Probability Distributions
  • Random Variables
  • Reliability
  • Sensor Networks
  • Social Networks
  • Software Agents
  • Triangles
  • Uncertainty

Readers

  • Systems Analysis and Design
  • Team-Based Human-Centered Cognitive Task Decision Making and Information Performance.