Presentation	2013-03-06 Measurement of the Degree of 'Loss of Anonymity' in Communication Systems Atsushi IWAI,
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Abstract(in English)	To evaluate the degree of anonymity in a communication system, Edman et al. proposed a new metric that employs calculation of the permanent of the adjacency matrix [5]. The definition of the metric includes the denominator of log(n!)for normalization, which, according to Iwai, could violate the property of Shannon additivity [11].This paper extends the analysis and proposes a method of evaluating the degree of "loss of anonymity", which does not involve normalization and employs a modified permanent-based approach.
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Keyword(in English)	Anonymity Measure / Combinatorial Approach / Loss of Anonymity / Normalization
Paper #	MSS2012-82,SS2012-82
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Committee	MSS
Conference Date	2013/2/27(1days)
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Paper Information
Registration To	Mathematical Systems Science and its applications(MSS)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Measurement of the Degree of 'Loss of Anonymity' in Communication Systems
Sub Title (in English)
Keyword(1)	Anonymity Measure
Keyword(2)	Combinatorial Approach
Keyword(3)	Loss of Anonymity
Keyword(4)	Normalization
1st Author's Name	Atsushi IWAI
1st Author's Affiliation	Faculty of Social and Information Studies, Gunma University()
Date	2013-03-06
Paper #	MSS2012-82,SS2012-82
Volume (vol)	vol.112
Number (no)	457
Page	pp.pp.-
#Pages	6
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