TY - JOUR
T1 - A flexible multi-layer self-organizing map for generic processing of tree-structured data
AU - Rahman, M. K M
AU - Pi Yang, Wang
AU - Chow, Tommy W.S.
AU - Wu, Sitao
PY - 2007/5
Y1 - 2007/5
N2 - A new multi-layer self-organizing map (MLSOM) is proposed for unsupervised processing tree-structured data. The MLSOM is an improved self-organizing map for handling structured data. By introducing multiple SOM layers, the MLSOM can overcome the computational speed and visualization problems of SOM for structured data (SOM-SD). Node data in different levels of a tree are processed in different layers of the MLSOM. Root nodes are dedicatedly processed on the top SOM layer enabling the MLSOM a better utilization of SOM map compared with the SOM-SD. Thus, the MLSOM exhibits better data organization, clustering, visualization, and classification results of tree-structured data. Experimental results on three different data sets demonstrate that the proposed MLSOM approach can be more efficient and effective than the SOM-SD. © 2006 Pattern Recognition Society.
AB - A new multi-layer self-organizing map (MLSOM) is proposed for unsupervised processing tree-structured data. The MLSOM is an improved self-organizing map for handling structured data. By introducing multiple SOM layers, the MLSOM can overcome the computational speed and visualization problems of SOM for structured data (SOM-SD). Node data in different levels of a tree are processed in different layers of the MLSOM. Root nodes are dedicatedly processed on the top SOM layer enabling the MLSOM a better utilization of SOM map compared with the SOM-SD. Thus, the MLSOM exhibits better data organization, clustering, visualization, and classification results of tree-structured data. Experimental results on three different data sets demonstrate that the proposed MLSOM approach can be more efficient and effective than the SOM-SD. © 2006 Pattern Recognition Society.
KW - Multi-layer self-organizing map (MLSOM)
KW - Self-organizing map (SOM)
KW - Tree-structured data
UR - http://www.scopus.com/inward/record.url?scp=33846267243&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-33846267243&origin=recordpage
U2 - 10.1016/j.patcog.2006.10.010
DO - 10.1016/j.patcog.2006.10.010
M3 - RGC 21 - Publication in refereed journal
SN - 0031-3203
VL - 40
SP - 1406
EP - 1424
JO - Pattern Recognition
JF - Pattern Recognition
IS - 5
ER -