Publication result detail

Dynamics of Reputation

CVRČEK, D.

Original Title

Dynamics of Reputation

English Title

Dynamics of Reputation

Type

Paper in proceedings outside WoS and Scopus

Original 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.

English 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.

Keywords

Reputation, trust, Dempster-Shafer theory, combining evidence

Key words in English

Reputation, trust, Dempster-Shafer theory, combining evidence

Authors

CVRČEK, D.

Released

14.09.2004

Publisher

Helsinki University of Technology

Location

Helsinki

Book

NordSec'04

Edition

Publications in Telecommunications Software and Multimedia

ISBN

1455-9749

Periodical

Publications in Telecommunication Software and Multimedia

Number

9

State

Republic of Finland

Pages from

1

Pages to

7

Pages count

7

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"
}