Mono-and Crosslingual Retrieval Experiments with Spatial Restrictions at GeoCLEF 2007.
Ralph KölleBen HeuwingThomas MandlChrista Womser-HackerPublished in: CLEF (2007)
Keyphrases
- document retrieval
- spatio temporal
- information retrieval
- spatial information
- image database
- automatically generated
- retrieval accuracy
- retrieval method
- image retrieval
- spatial and temporal
- relevance feedback
- efficient retrieval
- average precision
- text retrieval
- retrieval model
- spatial data
- geographic information retrieval
- retrieval systems
- space time
- multimedia databases
- query expansion
- language model
- automatic query expansion
- blind relevance feedback
- information retrieval systems
- case based reasoning
- video sequences