Fast and accurate Nearest Neighbor search in the manifolds of symmetric positive definite matrices.
Ligang ZhengGuoping QiuJiwu HuangJiang DuanPublished in: ICASSP (2014)
Keyphrases
- nearest neighbor search
- high dimensional
- nearest neighbor
- feature space
- image retrieval
- similarity search
- manifold learning
- low dimensional
- riemannian manifolds
- exhaustive search
- cost model
- metric space
- road network
- genetic algorithm
- dictionary learning
- search methods
- training set
- pattern recognition
- image classification
- knn
- euclidean space
- optimal solution
- objective function
- decision trees
- machine learning
- valued data