Information Retrieval (continued)
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How are documents retrieved for a query?
- The "vector space" model
- Term Frequency/Inverse Document Frequency (TF/IDF)
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How are IR systems evaluated?
- Ranking the results
- Precision and recall
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An application involving image retrieval:
sentences vs. word and phrase lists (Flank 2000)
- Structure and processing of queries
- Processing of documents and presentation of results
- Measuring performance
(2)
(return to previous IR slides)
(return to syllabus)