Memorias de investigación
Artículos en revistas:
Detecting false testimonies in reputation systems using self-organizing maps
Año:2013
Áreas de investigación
  • Inteligencia artificial,
  • Sistemas basados en agentes,
  • Redes de sensores,
  • Control adaptativo,
  • Control neuronal,
  • Vigilancia y seguridad
Datos
Descripción
It has been demonstrated that rating trust and reputation of individual nodes is an effective approach in distributed environments in order to improve security, support decision-making and promote node collaboration. Nevertheless, these systems are vulnerable to deliberate false or unfair testimonies. In one scenario, the attackers collude to give negative feedback on the victim in order to lower or destroy its reputation. This attack is known as bad mouthing attack. In another scenario, a number of entities agree to give positive feedback on an entity (often with adversarial intentions). This attack is known as ballot stuffing. Both attack types can significantly deteriorate the performances of the network. The existing solutions for coping with these attacks are mainly concentrated on prevention techniques. In this work, we propose a solution that detects and isolates the abovementioned attackers, impeding them in this way to further spread their malicious activity. The approach is based on detecting outliers using clustering, in this case self-organizing maps. An important advantage of this approach is that we have no restrictions on training data, and thus there is no need for any data pre-processing. Testing results demonstrate the capability of the approach in detecting both bad mouthing and ballot stuffing attack in various scenarios.
Internacional
Si
JCR del ISI
Si
Título de la revista
Logic Journal of the Igpl
ISSN
1367-0751
Factor de impacto JCR
1,136
Información de impacto
Volumen
21
DOI
10.1093/jigpal/jzs028
Número de revista
4
Desde la página
549
Hasta la página
559
Mes
SIN MES
Ranking
Posición en JCR 2012: LOGIC 1/19 (Q1), MATHEMATICS 28/295 (Q1), MATHEMATICS, APPLIED 64/247 (Q2)
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Zorana Bankovic UPM
  • Autor: Juan Carlos Vallejo López Universidad Politécnica de Madrid
  • Autor: David Fraga Aydillo UPM
  • Autor: Jose Manuel Moya Fernandez UPM
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Laboratorio de Sistemas Integrados (LSI)
  • Departamento: Ingeniería Electrónica