Keyphrases
- x ray
- document processing
- document analysis
- information retrieval systems
- signal processing
- document collections
- document retrieval
- flight data
- document classification
- text documents
- information retrieval
- space shuttle
- document clustering
- document images
- document representation
- infrared
- web documents
- bag of words
- relevant documents
- user queries
- vector space model
- tf idf
- pattern recognition
- keywords
- electronic documents
- search engine
- neural network