@inproceedings{weko_117170_1,
   author	 = "丸山,宏",
   title	 = "階層的フィルタリング",
   booktitle	 = "全国大会講演論文集",
   year 	 = "1989",
   volume	 = "第39回",
   number	 = "人工知能および認知科学",
   pages	 = "263--264",
   month	 = "oct"
}