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Home / Proceedings / Proceedings of the International AAAI Conference on Web and Social Media

Trust Propagation with Mixed-Effects Models

February 1, 2023

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Authors

Jan Overgoor,Ellery Wulczyn,Christopher Potts

Stanford University,Stanford University,Stanford University


DOI:

10.1609/icwsm.v6i1.14308


Abstract:

Web-based social networks typically use public trust systems to facilitate interactions between strangers. These systems can be corrupted by misleading information spread under the cover of anonymity, or exhibit a strong bias towards positive feedback, originating from the fear of reciprocity. Trust propagation algorithms seek to overcome these shortcomings by inferring trust ratings between strangers from trust ratings between acquaintances and the structure of the network that connects them. We investigate a trust propagation algorithm that is based on user triads where the trust one user has in another is predicted based on an intermediary user. The propagation function can be applied iteratively to propagate trust along paths between a source user and a target user. We evaluate this approach using the trust network of the CouchSurfing community, which consists of 7.6M trust-valued edges between 1.1M users. We show that our model out-performs one that relies only on the trustworthiness of the target user (a kind of public trust system). In addition, we show that performance is significantly improved by bringing in user-level variability using mixed-effects regression models.

Topics: ICWSM

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HOW TO CITE:

Jan Overgoor,Ellery Wulczyn,Christopher Potts Trust Propagation with Mixed-Effects Models Proceedings of the International AAAI Conference on Web and Social Media (2012) 535-538.

Jan Overgoor,Ellery Wulczyn,Christopher Potts Trust Propagation with Mixed-Effects Models ICWSM 2012, 535-538.

Jan Overgoor,Ellery Wulczyn,Christopher Potts (2012). Trust Propagation with Mixed-Effects Models. Proceedings of the International AAAI Conference on Web and Social Media, 535-538.

Jan Overgoor,Ellery Wulczyn,Christopher Potts. Trust Propagation with Mixed-Effects Models. Proceedings of the International AAAI Conference on Web and Social Media 2012 p.535-538.

Jan Overgoor,Ellery Wulczyn,Christopher Potts. 2012. Trust Propagation with Mixed-Effects Models. "Proceedings of the International AAAI Conference on Web and Social Media". 535-538.

Jan Overgoor,Ellery Wulczyn,Christopher Potts. (2012) "Trust Propagation with Mixed-Effects Models", Proceedings of the International AAAI Conference on Web and Social Media, p.535-538

Jan Overgoor,Ellery Wulczyn,Christopher Potts, "Trust Propagation with Mixed-Effects Models", ICWSM, p.535-538, 2012.

Jan Overgoor,Ellery Wulczyn,Christopher Potts. "Trust Propagation with Mixed-Effects Models". Proceedings of the International AAAI Conference on Web and Social Media, 2012, p.535-538.

Jan Overgoor,Ellery Wulczyn,Christopher Potts. "Trust Propagation with Mixed-Effects Models". Proceedings of the International AAAI Conference on Web and Social Media, (2012): 535-538.

Jan Overgoor,Ellery Wulczyn,Christopher Potts. Trust Propagation with Mixed-Effects Models. ICWSM[Internet]. 2012[cited 2023]; 535-538.


ISSN: 2334-0770


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