... Poster Sessions, pages 77–80,Prague, June 2007.c2007 Association for Computational LinguisticsEnsemble Document Clustering Using Weighted Hypergraph Generated by NMFHiroyuki Shinnou, Minoru ... usedin the Probabilistic Latent Semantic Indexing (Hof-mann, 1999). Because the axis in the reduced spaceby NMF corresponds to a topic, the reduced vectorrepresents the clustering result. For a ... multiple clustering results (Fredand Jain, 2002). The second method constructs newvectors for each instance data usingmultiplecluster-ing results (Strehl and Ghosh, 2002). Both methodsapply the clustering...