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. 2015 Jul 17;9:400. doi: 10.3389/fnhum.2015.00400

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Copyright © 2015 Zhang, Liu, Chen, Yuan, Huang, Deng, Lu, Zhang, Wang, Wang and Chen.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Comparison between the proposed SOM-SAPC and PCA-SAPC for the simulation tests. (A1) Clustering results (17 clusters) computed by SOM-SAPC for dataset DS1. (A2) Clustering results (12 clusters) computed by SOM-SAPC for dataset DS2. (B1) Clustering results (4 clusters) computed by PCA-SAPC for DS1. (B2) Clustering results (5 clusters) computed by PCA-SAPC for DS2. (C) JCs of DS1 and DS2 calculated by SOM-SAPC and PCA-SAPC, respectively. (D,E) are the findings of DS3 with different SNRs. (D) are results of JCs while (E) describes the maximum memory used by SOM-SAPC and PCA-SAPC, respectively.