A two-phase strategy for nonconvex clusters integrating a spectral clustering with a merging technique.
Paola FavatiOrnella MenchiPublished in: Expert Syst. Appl. (2023)
Keyphrases
- spectral clustering
- clustering algorithm
- data clustering
- similarity matrix
- clustering quality
- clustering method
- unsupervised clustering
- graph clustering
- normalized cut
- constrained clustering
- clustering result
- k means
- cluster analysis
- classical clustering algorithms
- affinity matrix
- hierarchical clustering
- evolutionary clustering
- nonnegative matrix factorization
- pairwise
- constrained spectral clustering
- image segmentation
- pairwise similarities
- similarity graph
- image processing
- data mining
- unsupervised learning
- eigendecomposition
- graph laplacian
- laplacian matrix
- computer vision
- subspace clustering
- convex optimization
- co occurrence
- feature space
- object recognition
- alternative clusterings