Keyphrases
- information retrieval
- lifelog
- document collections
- relevant documents
- information retrieval systems
- vector space model
- document retrieval
- effective retrieval
- retrieval systems
- query expansion
- search engine
- test collection
- text retrieval
- language model
- metadata
- computer vision
- text mining
- retrieval model
- high level
- relevance feedback
- multimedia databases
- content based retrieval
- image retrieval
- multimedia