Yuichi HattoriSozo InoueGo HirakawaVisualization for Activity Information Sharing System Using Self-Organizing Map.537-5422011BWCCAhttps://doi.org/10.1109/BWCCA.2011.87https://doi.ieeecomputersociety.org/10.1109/BWCCA.2011.87conf/bwcca/2011db/conf/bwcca/bwcca2011.html#HattoriIH11