Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NANBA Hidetsugu,Extraction and Summarization of Trend Information,Journal of Japan Society for Fuzzy Theory and Intelligent Informatics,1347-7986,Japan Society for Fuzzy Theory and Intelligent Informatics,2010,22,5,549-555,https://cir.nii.ac.jp/crid/1390282680161883904,https://doi.org/10.3156/jsoft.22.5_549