Tuesday, 4/11/06
Halbert - DLF 2006 Spring
12
Core Clustering
•"Ab initio" (unsupervised) topic
discovery/structuring
•Useful when you must organize resources but:
–You lack an ontology
–You have specialized/nuanced collections
–There is no training set available
•Developed by Aaron Krowne, Steve Ingram
•Our system based on recent NMF algorithm
•Flat and two hierarchical methods
•Depends on Sparselib++
•Also developed support tools:
–Phrase finder
–Vectorizer