Altering document term vectors for classification: ontologies as expectations of co-occurrence.
Meenakshi NagarajanAmit P. ShethMarcos Kawazoe AguileraKimberly KeetonArif MerchantMustafa UysalPublished in: WWW (2007)
Keyphrases
- co occurrence
- term co occurrence
- query terms
- semantic relations
- latent semantic analysis
- semantic relationships
- wordnet
- semantic space
- word co occurrence
- feature vectors
- term weights
- concept hierarchy
- semantic similarity
- decision trees
- domain specific
- feature space
- topic models
- text classification
- image classification
- information retrieval systems
- keywords
- named entities
- text documents
- visual words
- language model
- semantic content
- word sense
- feature extraction
- information retrieval