Topic identification based on document coherence and spectral analysis.
Joris D'hondtPaul-Armand VerhaegenJoris VertommenDirk CattrysseJoost R. DuflouPublished in: Inf. Sci. (2011)
Keyphrases
- spectral analysis
- document content
- document set
- latent topics
- spectral methods
- information retrieval
- speech signal
- information retrieval systems
- document collections
- spectral features
- web documents
- filter bank
- document images
- text documents
- relevant documents
- heart rate variability
- neural network
- document clustering
- topic models
- co occurrence
- related documents
- image segmentation
- topic hierarchy
- autoregressive
- non stationary
- pattern recognition
- keywords
- computer vision