@techreport{weko_92654_1, author = "Kazuki,Fujikawa and Kazuhiro,Seki and Kuniaki,Uehara", title = "NegFinder: A Web Service for Identifying Negation Signals and Their Scopes", year = "2013", institution = "Kobe University, Kobe University, Kobe University", number = "12", month = "jun" }