Subtractive Initialization of Nonnegative Matrix Factorizations for Document Clustering.
Gabriella CasalinoNicoletta Del BuonoCorrado MencarPublished in: WILF (2011)
Keyphrases
- document clustering
- nonnegative matrix factorization
- negative matrix factorization
- matrix factorization
- factor matrices
- k means
- clustering algorithm
- tensor factorization
- clustering method
- document collections
- text mining
- data matrix
- document clusters
- cluster analysis
- tolerance rough set
- text documents
- collaborative filtering
- sparsity constraints
- databases
- pairwise constraints
- image features
- probabilistic model
- metadata