InforLorV4, Hal, Corpus, bibRecord, 001647

Comparing Local, Collective, and Global Trust Models

Identifieur interne : 001647 ( Hal/Corpus ); précédent : 001646; suivant : 001648

Comparing Local, Collective, and Global Trust Models

Auteurs : Charif Haydar ; Azim Roussanaly ; Anne Boyer

Source :

International Journal On Advances in Life Sciences [ 1942-2660 ] ; 2014-01-15.

RBID : Hal:hal-01109270

English descriptors

mix :
- Collective trust, Subjective logic, global trust, local trust, reputation, —Trust modelling.

Abstract

—Today, trust modelling is a serious issue on the social web. Social web allows information exchange between anonymous users who have no prior knowledge to each other. The aim of a trust model is to rerank acquired information according to their reliability and the trustworthiness of their author. During the last decade, trust models were proposed to assist the user to state his opinion about the acquired information, and about their sources. We identify three paradigms for trust modelling: the first relies on evaluating previous interactions with the source (individual trust), the second relies on the word of mouth paradigm where the user relies on the knowledge of his friends and their friends (collective trust), and the third relies on the reputation of the source (global trust). In this paper, we propose and compare three trust models, each of which represent one of the precedent paradigms. All three models make use of subjective logic (SL). SL is an extension of probabilistic logic that deals with the cases of lack of evidence. It supplies framework for modelling trust on the web. The comparison includes three axes: the precision, the complexity and the robustness to malicious attacks. We show that each of the three models has a weak point in one of the three axes.

Url:

https://hal.inria.fr/hal-01109270

Links to Exploration step

Hal:hal-01109270

Le document en format XML

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<front><div type="abstract" xml:lang="en">—Today, trust modelling is a serious issue on the social web. Social web allows information exchange between anonymous users who have no prior knowledge to each other. The aim of a trust model is to rerank acquired information according to their reliability and the trustworthiness of their author. During the last decade, trust models were proposed to assist the user to state his opinion about the acquired information, and about their sources. We identify three paradigms for trust modelling: the first relies on evaluating previous interactions with the source (individual trust), the second relies on the word of mouth paradigm where the user relies on the knowledge of his friends and their friends (collective trust), and the third relies on the reputation of the source (global trust). In this paper, we propose and compare three trust models, each of which represent one of the precedent paradigms. All three models make use of subjective logic (SL). SL is an extension of probabilistic logic that deals with the cases of lack of evidence. It supplies framework for modelling trust on the web. The comparison includes three axes: the precision, the complexity and the robustness to malicious attacks. We show that each of the three models has a weak point in one of the three axes.</div>
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<abstract xml:lang="en">—Today, trust modelling is a serious issue on the social web. Social web allows information exchange between anonymous users who have no prior knowledge to each other. The aim of a trust model is to rerank acquired information according to their reliability and the trustworthiness of their author. During the last decade, trust models were proposed to assist the user to state his opinion about the acquired information, and about their sources. We identify three paradigms for trust modelling: the first relies on evaluating previous interactions with the source (individual trust), the second relies on the word of mouth paradigm where the user relies on the knowledge of his friends and their friends (collective trust), and the third relies on the reputation of the source (global trust). In this paper, we propose and compare three trust models, each of which represent one of the precedent paradigms. All three models make use of subjective logic (SL). SL is an extension of probabilistic logic that deals with the cases of lack of evidence. It supplies framework for modelling trust on the web. The comparison includes three axes: the precision, the complexity and the robustness to malicious attacks. We show that each of the three models has a weak point in one of the three axes.</abstract>
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Comparing Local, Collective, and Global Trust Models

Comparing Local, Collective, and Global Trust Models

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