Title
A robust trust inference algorithm in weighted signed social networks based on collaborative filtering and agreement as a similarity metric.
Abstract
Trust is a very significant notion in social life, and even more in online social networks where people from different cultures and backgrounds interact. Weighted Signed Networks (WSNs) are an elegant representation of social networks, since they are able to encode both positive and negative relations, thus allow to express trust and distrust as we know them in the real world. While many trust inference algorithms exist for traditional unsigned networks, distrust makes it hard to adapt them to WSNs. In this paper, we propose a new unsupervised trust inference algorithm based on collaborative filtering (CF), where we consider the trustors as users, the trustees as items, and agreement as a local similarity metric to predict trust values in signed, and unsigned, networks. In addition to its prediction performances, experiments on four real-world datasets show that our algorithm is very robust to network sparsity.
Year
DOI
Venue
2019
10.1016/j.jnca.2018.11.008
Journal of Network and Computer Applications
Keywords
Field
DocType
Online social network,Trust inference,Distrust,Weighted signed network,Collaborative filtering,Agreement
Express trust,ENCODE,Collaborative filtering,Social network,Inference,Computer science,Algorithm,Distrust
Journal
Volume
ISSN
Citations 
126
1084-8045
0
PageRank 
References 
Authors
0.34
26
3
Name
Order
Citations
PageRank
Karim Akilal100.68
Hachem Slimani295.51
Mawloud Omar37414.53