International Journal of Computational Intelligence Systems

Volume 4, Issue 5, October 2011, Pages 749 - 758

A Projection Pursuit Based Risk Assessment Method in Mobile Ad hoc Networks

Authors
Fu Cai, Liu Ming, Chen Jing, Zhang Li, Xiao-Yang Liu
Corresponding Author
Fu Cai
Available Online 7 September 2011.
DOI
https://doi.org/10.2991/ijcis.2011.4.5.1How to use a DOI?
Keywords
project pursuit, genetic algorithm, risk assessment, projection direction, projection index.
Abstract
Establishing high performance cooperation and estimating nodes’ risk level in mobile ad hoc networks (MANETs) are currently fundamental and challenging due to the inherent characteristics of MANETs, such as the highly dynamic topology and the absence of an effective security mechanism. Trust based assessment methods were recently put forward but presumed restrictions to the data samples or presumed weights for node’s attributes are required. In this paper, Projection Pursuit based Risk Assessment (PPRA), is proposed to analyze node’s creditability. As projection pursuit turns high-dimensional node properties to low-dimension space, all nodes’ risk levels could be clustered effectively and accurately. Projection index, the same as judgment index of clustering consequence, is utilized to reveal the behavior of different nodes. By maximizing projection index through Genetic Algorithm (GA), optimal projection direction is obtained, and then the projection values of each node could be calculated. Finally, the results in one-dimension or two-dimension projection space show that our method is more efficient and practical than traditional methods.
Open Access
This is an open access article distributed under the CC BY-NC license.

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Journal
International Journal of Computational Intelligence Systems
Volume-Issue
4 - 5
Pages
749 - 758
Publication Date
2011/09
ISSN
1875-6883
DOI
https://doi.org/10.2991/ijcis.2011.4.5.1How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - JOUR
AU  - Fu Cai
AU  - Liu Ming
AU  - Chen Jing
AU  - Zhang Li
AU  - Xiao-Yang Liu
PY  - 2011
DA  - 2011/09
TI  - A Projection Pursuit Based Risk Assessment Method in Mobile Ad hoc Networks
JO  - International Journal of Computational Intelligence Systems
SP  - 749
EP  - 758
VL  - 4
IS  - 5
SN  - 1875-6883
UR  - https://doi.org/10.2991/ijcis.2011.4.5.1
DO  - https://doi.org/10.2991/ijcis.2011.4.5.1
ID  - Cai2011
ER  -