InforLorV4, Hal, Corpus, bibRecord, 002F46

Local Trust Versus Global Trust Networks in Subjective Logic

Identifieur interne : 002F46 ( Hal/Corpus ); précédent : 002F45; suivant : 002F47

Local Trust Versus Global Trust Networks in Subjective Logic

Auteurs : Charif Haydar ; Azim Roussanaly ; Anne Boyer

Source :

RBID : Hal:hal-00929913

English descriptors

mix :
- Recommender systems, social network, subjective logic, trust.

Abstract

Social web permits users to acquire information from anonymous people around the world. This leads to a serious question about the trustworthiness of information and sources. During the last decade, numerous models were proposed to model social trust in the service of social web. Trust modeling follows two main axes, local trust (trust between pair of users), and global trust (user's reputation within the community). Subjective logic, is an extension of probabilistic logic that deals with the cases of lack of evidences. An elaborated local trust model based on subjective logic already exists. The aim of this work is to apply this model to the first time on a real data set. Then, we propose another global trust model based also on subjective logic. We apply both models on a real data set of a question answering social network that aims to assist people to find solutions to their technical problems in various domains. Our proposed global trust model ensures a better performance thanks to its precise interpretation of the context of trust, and its ability to satisfy new arrived users.

Url:

https://hal.inria.fr/hal-00929913

DOI: 10.1109/WI-IAT.2013.5

Links to Exploration step

Hal:hal-00929913

Le document en format XML

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<front><div type="abstract" xml:lang="en">Social web permits users to acquire information from anonymous people around the world. This leads to a serious question about the trustworthiness of information and sources. During the last decade, numerous models were proposed to model social trust in the service of social web. Trust modeling follows two main axes, local trust (trust between pair of users), and global trust (user's reputation within the community). Subjective logic, is an extension of probabilistic logic that deals with the cases of lack of evidences. An elaborated local trust model based on subjective logic already exists. The aim of this work is to apply this model to the first time on a real data set. Then, we propose another global trust model based also on subjective logic. We apply both models on a real data set of a question answering social network that aims to assist people to find solutions to their technical problems in various domains. Our proposed global trust model ensures a better performance thanks to its precise interpretation of the context of trust, and its ability to satisfy new arrived users.</div>
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<abstract xml:lang="en">Social web permits users to acquire information from anonymous people around the world. This leads to a serious question about the trustworthiness of information and sources. During the last decade, numerous models were proposed to model social trust in the service of social web. Trust modeling follows two main axes, local trust (trust between pair of users), and global trust (user's reputation within the community). Subjective logic, is an extension of probabilistic logic that deals with the cases of lack of evidences. An elaborated local trust model based on subjective logic already exists. The aim of this work is to apply this model to the first time on a real data set. Then, we propose another global trust model based also on subjective logic. We apply both models on a real data set of a question answering social network that aims to assist people to find solutions to their technical problems in various domains. Our proposed global trust model ensures a better performance thanks to its precise interpretation of the context of trust, and its ability to satisfy new arrived users.</abstract>
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Local Trust Versus Global Trust Networks in Subjective Logic

Local Trust Versus Global Trust Networks in Subjective Logic

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