Keyphrases
- web documents
- information retrieval
- genetic algorithm
- vector space model
- information extraction
- web pages
- simulated annealing
- text mining
- information retrieval systems
- data mining
- document representation
- question answering
- fitness function
- semi structured
- focused crawling
- prefetching
- pattern discovery
- document retrieval
- document collections
- query expansion
- genetic programming