@inproceedings{weko_157007_1, author = "/ 小柳,滋 and / 上原子,正利", title = "D-038 Hierarchical Clustering and Bisecting K-Means in producing Time Series Patent Map", booktitle = "情報科学技術フォーラム一般講演論文集", year = "2007", volume = "6", number = "2", pages = "91--92", month = "aug" }