TY - GEN
T1 - Proportional membership in fuzzy clustering as a model of ideal types
AU - Almeida, Susana Maria dos Santos Nascimento M. de
AU - Mirkin, Boris
AU - Pires, Fernando Moura
PY - 2001
Y1 - 2001
N2 - The goal of this paper is to further investigate the extreme behaviour of the fuzzy clustering proportional membership model (FCPM) in contrast to the central tendency of fuzzy c-means (FCM). A data set from the field of psychiatry has been used for the experimental study, where the cluster prototypes are indeed extreme, expressing the concept of 'ideal type'. While augmenting the original data set with patients bearing less severe syndromes, it is shown that the prototypes found by FCM are changed towards the more moderate characteristics of the data, in contrast with the almost unchanged prototypes found by FCPM, highlighting its suitability to model the concept of 'ideal type'.
AB - The goal of this paper is to further investigate the extreme behaviour of the fuzzy clustering proportional membership model (FCPM) in contrast to the central tendency of fuzzy c-means (FCM). A data set from the field of psychiatry has been used for the experimental study, where the cluster prototypes are indeed extreme, expressing the concept of 'ideal type'. While augmenting the original data set with patients bearing less severe syndromes, it is shown that the prototypes found by FCM are changed towards the more moderate characteristics of the data, in contrast with the almost unchanged prototypes found by FCPM, highlighting its suitability to model the concept of 'ideal type'.
KW - Fuzzy clustering
KW - Fuzzy model identification
KW - Ideal type
KW - Proportional membership
UR - http://www.scopus.com/inward/record.url?scp=84867811739&partnerID=8YFLogxK
U2 - 10.1007/3-540-45329-6_9
DO - 10.1007/3-540-45329-6_9
M3 - Conference contribution
SN - 354043030X
SN - 9783540430308
VL - 2258
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 52
EP - 62
BT - Progress in Artificial Intelligence
A2 - Brazdil, Pavel
A2 - Jorge, Alipio
PB - Springer Verlag
T2 - 10th Portuguese Conference on Artificial Intelligence, EPIA 2001
Y2 - 17 December 2001 through 20 December 2001
ER -