Keyphrases
- vector space
- document representation
- distance measure
- euclidean space
- similarity search
- retrieval model
- training documents
- feature vectors
- concept space
- low dimensional
- latent semantic indexing
- vector space model
- latent semantic
- finite dimensional
- keywords
- covariance matrices
- n gram
- data sets
- information retrieval systems
- knn
- probabilistic model
- machine learning
- neural network