Keyphrases
- document collections
- detection accuracy
- false alarms
- xml documents
- object detection
- detection algorithm
- information retrieval
- document retrieval
- relevant documents
- false positives
- detection method
- web documents
- metadata
- information retrieval systems
- text documents
- automatic detection
- document classification
- event detection
- detection rate
- free text
- database
- similarity scores
- structured documents
- latent semantic analysis
- vector space model
- website
- natural language processing
- query expansion