Olli Virmajoki Papers on DiSC'04 Fast PNN-based Clustering Using K-nearest Neighbor Graph Publications Note: Links lead to the DBLP on the Web. Olli Virmajoki Pasi Fränti , Olli Virmajoki, Ville Hautamäki : Fast PNN-based Clustering Using K-nearest Neighbor Graph. ICDM 2003 : 525-528 Olli Virmajoki, Pasi Fränti , Timo Kaukoranta : Fast PNN Using Partial Distortion Search. CAIP 2001 : 77-84 1 [ 1 ] [ 2 ] 2 [ 2 ] 3 [ 1 ] ©2004 Association for Computing Machinery