Probabilistic Nearest Neighbors Based Locality Preserving Projections for Unsupervised Metric Learning.
Alaor Cervati NetoAlexandre L. M. LevadaPublished in: J. Univers. Comput. Sci. (2024)
Keyphrases
- metric learning
- locality preserving projections
- nearest neighbor
- dimensionality reduction
- semi supervised
- manifold structure
- distance function
- discriminative information
- data points
- distance metric
- unsupervised learning
- manifold learning
- high dimensional
- generative model
- k nearest neighbor
- high dimensional data
- pairwise
- knn
- subspace learning
- learning tasks
- semi supervised learning
- feature space
- multiple features
- principal component analysis
- multi task
- probabilistic model
- supervised learning
- linear discriminant analysis
- pattern recognition
- face recognition
- low dimensional
- sparse coding
- euclidean distance
- sparse representation
- similarity search
- labeled data
- active learning
- locally linear embedding
- data analysis