Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NAKAMURA Munehiro and KAJIWARA Yusuke and MURATA Hiroaki and KIMURA Haruhiko,Facial Expression Recognition Using Features of Density Distributions between Facial Images,Journal of Japan Society for Fuzzy Theory and Intelligent Informatics,1347-7986,Japan Society for Fuzzy Theory and Intelligent Informatics,2012,24,4,836-847,https://cir.nii.ac.jp/crid/1390282680162189568,https://doi.org/10.3156/jsoft.24.836