Unsupervised vocabulary discovery using non-negative matrix factorization with graph regularization.
Meng SunHugo Van hammePublished in: ICASSP (2011)
Keyphrases
- solution path
- graph laplacian
- graph representation
- weighted graph
- random walk
- unsupervised learning
- regularization parameter
- graph structure
- graph matching
- bipartite graph
- knowledge discovery
- graph model
- prior information
- machine learning
- agglomerative clustering
- unsupervised feature selection
- data mining
- graph theory
- semi supervised
- spanning tree
- undirected graph
- supervised learning
- keywords
- scientific discovery
- regularization method
- connected components