Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yoshiro Yamamoto and Katsuya Kono,Discussion of outlier detection methods of purchasing data,2016 14th International Conference on ICT and Knowledge Engineering (ICT&KE),,IEEE,2016-11,,,12-18,https://cir.nii.ac.jp/crid/1360285710245189632,https://doi.org/10.1109/ictke.2016.7804092