Masako Omachi Shinichiro Omachi Element-Level Clustering of Feature Vectors Considering Correlations for Analyzing Image Data. 146-149 2016 SKG https://doi.org/10.1109/SKG.2016.031 https://doi.ieeecomputersociety.org/10.1109/SKG.2016.031 conf/skg/2016 db/conf/skg/skg2016.html#OmachiO16