Title
Propagation of trust and distrust
Abstract
A (directed) network of people connected by ratings or trust scores, and a model for propagating those trust scores, is a fundamental building block in many of today's most successful e-commerce and recommendation systems. We develop a framework of trust propagation schemes, each of which may be appropriate in certain circumstances, and evaluate the schemes on a large trust network consisting of 800K trust scores expressed among 130K people. We show that a small number of expressed trusts/distrust per individual allows us to predict trust between any two people in the system with high accuracy. Our work appears to be the first to incorporate distrust in a computational trust propagation setting.
Year
DOI
Venue
2004
10.1145/988672.988727
WWW
Keywords
Field
DocType
web of trust,e commerce,recommender system
Recommender system,Internet privacy,Trust anchor,Computer science,Trust network,Computational trust,Distrust,Web of trust
Conference
ISBN
Citations 
PageRank 
1-58113-844-X
742
43.53
References 
Authors
11
4
Search Limit
100742
Name
Order
Citations
PageRank
Ramanathan V. Guha12600415.68
Ravi Kumar2139321642.48
Prabhakar Raghavan3133512776.61
Andrew Tomkins493881401.23