Keyphrases
- test bed
- information retrieval
- computer vision systems
- test beds
- information retrieval systems
- information seeking
- search engine
- information access
- test collection
- language model
- relevance feedback
- web search
- query expansion
- information extraction
- tf idf
- vector space model
- space station
- schottky barrier
- document collections
- learning to rank
- document retrieval
- real time
- text mining
- machine learning
- data sets