FLOW-BASED REPUTATION: MORE THAN JUST RANKING
The last years have seen a growing interest in collaborative systems like electronic marketplaces and P2P file sharing systems where people are intended to interact with other people. Those systems, however, are subject to security and operational risks because of their open and distributed nature. Reputation systems provide a mechanism to reduce such risks by building trust relationships among entities and identifying malicious entities. A popular reputation model is the so-called flow-based model. Most existing reputation systems based on such a model provide only a ranking, without absolute reputation values; this makes it difficult to determine whether entities are actually trustworthy or untrustworthy. In addition, those systems ignore a significant part of the available information; as a consequence, reputation values may not be accurate. In this paper, we present a flow-based reputation metric that gives absolute values instead of merely a ranking. Our metric makes use of all the available information. We study, both analytically and numerically, the properties of the proposed metric and the effect of attacks on reputation values.
Year of publication: |
2012
|
---|---|
Authors: | SIMONE, ANTONINO ; ŠKORIĆ, BORIS ; ZANNONE, NICOLA |
Published in: |
International Journal of Information Technology & Decision Making (IJITDM). - World Scientific Publishing Co. Pte. Ltd., ISSN 1793-6845. - Vol. 11.2012, 03, p. 551-578
|
Publisher: |
World Scientific Publishing Co. Pte. Ltd. |
Subject: | Decision support | reputation systems | trust | security |
Saved in:
Online Resource
Saved in favorites
Similar items by subject
-
A survey of trust and reputation systems for online service provision
Josang, Audun, (2007)
-
Bolton, Gary E., (2008)
-
Reputation system of C2C e-commerce, buying interest and trust
Kusuma, Linda, (2020)
- More ...