Publication Details

Dynamics of Reputation

CVRČEK, D. Dynamics of Reputation. NordSec'04. Publications in Telecommunication Software and Multimedia. Publications in Telecommunications Software and Multimedia. Helsinki: Helsinki University of Technology, 2004. p. 1-7. ISSN: 1455-9749.
Czech title
Dynamika reputace
Type
conference paper
Language
English
Authors
Cvrček Daniel, doc. Ing., Ph.D.
Keywords

Reputation, trust, Dempster-Shafer theory, combining evidence

Abstract

To enforce security without user enrollment, trust (or reputation)systems were proposed to use experience as crucial information tosupport cooperation as well as for security enforcement mechanisms.However, use of trust introduces very difficult problems that stilldiscourage from exploitation of trust for security mechanisms. Theability to change trust quickly and react effectively to changes inenvironment and user behaviour is profound for usability of mechanismsbuilt on top of trust. Dempster-Shafer theory was proposed as asuitable theoretical model for trust computation. Here, we definegeneral requirements for reputation dynamics and demonstrate thatDempster-Shafer theory properties are not as good as is widely thought.On the contrary, simple formulae work.

Published
2004
Pages
1–7
Journal
Publications in Telecommunication Software and Multimedia, no. 9, ISSN 1455-9749
Proceedings
NordSec'04
Series
Publications in Telecommunications Software and Multimedia
Conference
NordSec 2004, Helsinki, FI
Publisher
Helsinki University of Technology
Place
Helsinki
BibTeX
@inproceedings{BUT17600,
  author="Daniel {Cvrček}",
  title="Dynamics of Reputation",
  booktitle="NordSec'04",
  year="2004",
  series="Publications in Telecommunications Software and Multimedia",
  journal="Publications in Telecommunication Software and Multimedia",
  number="9",
  pages="1--7",
  publisher="Helsinki University of Technology",
  address="Helsinki",
  issn="1455-9749"
}
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