TY - GEN
T1 - Semi supervised fuzzy clustering networks for constrained analysis of time-series gene expression data
AU - Maraziotis, Ioannis A.
AU - Dragomir, Andrei
AU - Bezerianos, Anastasios
PY - 2006/1/1
Y1 - 2006/1/1
N2 - Clustering analysis of time series data from DNA microarray hybridization studies is essential for identifying biological relevant groups of genes. Microarrrays provide large datasets that are currently primarily analyzed using crisp clustering techniques. Crisp clustering methods such as K-means or self organizing maps assign each gene to one cluster, thus omitting information concerning the multiple roles of genes. One of the major advantages of fuzzy clustering is that genes can belong to more than one group, revealing this way more profound information concerning the function and regulation of each gene. Additionally, recent studies have proven that integrating a small amount of information in purely unsupervised algorithms leads to much better performance. In this paper we propose a new semi-supervised fuzzy clustering algorithm which we apply in time series gene expression data. The clustering that was performed on simulated as well as experimental microarray data proved that the proposed method outperformed other clustering techniques.
AB - Clustering analysis of time series data from DNA microarray hybridization studies is essential for identifying biological relevant groups of genes. Microarrrays provide large datasets that are currently primarily analyzed using crisp clustering techniques. Crisp clustering methods such as K-means or self organizing maps assign each gene to one cluster, thus omitting information concerning the multiple roles of genes. One of the major advantages of fuzzy clustering is that genes can belong to more than one group, revealing this way more profound information concerning the function and regulation of each gene. Additionally, recent studies have proven that integrating a small amount of information in purely unsupervised algorithms leads to much better performance. In this paper we propose a new semi-supervised fuzzy clustering algorithm which we apply in time series gene expression data. The clustering that was performed on simulated as well as experimental microarray data proved that the proposed method outperformed other clustering techniques.
UR - http://www.scopus.com/inward/record.url?scp=33749834394&partnerID=8YFLogxK
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U2 - 10.1007/11840930_85
DO - 10.1007/11840930_85
M3 - Conference contribution
AN - SCOPUS:33749834394
SN - 3540388710
SN - 9783540388715
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 818
EP - 826
BT - Artificial Neural Networks, ICANN 2006 - 16th International Conference, Proceedings
PB - Springer Verlag
T2 - 16th International Conference on Artificial Neural Networks, ICANN 2006
Y2 - 10 September 2006 through 14 September 2006
ER -