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Scanned Documents

Scanned Documents. LBSC 796/INFM 718R Douglas W. Oard Week 8, October 29, 2007. Expanding the Search Space. Scanned Docs. Identity: Harriet “… Later, I learned that John had not heard …”. OCR. MT. Handwriting. Speech. High Payoff Investments. Searchable Fraction.

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Scanned Documents

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  1. Scanned Documents LBSC 796/INFM 718R Douglas W. Oard Week 8, October 29, 2007

  2. Expanding the Search Space Scanned Docs Identity: Harriet “… Later, I learned that John had not heard …”

  3. OCR MT Handwriting Speech High Payoff Investments Searchable Fraction Transducer Capabilities

  4. The Big Picture • Find the words • Index the words • Do ranked retrieval • Use that system to find what you want

  5. Some Issues • Language-based search without language! • Shape codes • Accuracy-selection effect of ranked retrieval • Poor recognition scatters in the query-term space • Blind relevance feedback • Based on clean text • Image-domain summaries

  6. Some Applications • Case management for litigation • Duplicate detection for declassification productivity and anti-tiling • Knowledge management from everything I have ever xeroxed or faxed

  7. Some Applications • Legacy Tobacco Documents Library • http://legacy.library.ucsf.edu/ • Google Books • http://books.google.com/ • George Washington’s Papers • http://ciir.cs.umass.edu/irdemo/hw-demo/

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