Paul Fogel Keynote Spee

1. Experiences in Mass Digitization: Examining OCR Quality at Scale Paul Fogel California Digital Library University of California

2. HathiTrust

4. The Partnership

5. Consortia Committee on Institutional Cooperation Triangle Research Libraries Network University of California Individual Institutions Arizona State University Baylor University Boston University California Digital Library Columbia University Cornell University Dartmouth College Duke University Emory University Harvard University Library Indiana University Johns Hopkins University Lafayette College Library of Congress Mass. Inst. of Technology Michigan State University New York University New York Public Library North Carolina Central University North Carolina State University Northwestern University The Ohio State University The Pennsylvania State University Princeton University Purdue University Stanford University Texas A&M University Universidad Complutense de Madrid University of California Berkeley University of California Davis University of California Irvine University of California Los Angeles University of California Merced University of California Riverside University of California San Diego University of California San Francisco University of California Santa Barbara University of California Santa Cruz The University of Chicago University of Connecticut University of Florida University of Illinois University of Illinois at Chicago The University of Iowa University of Maryland University of Michigan University of Minnesota University of Nebraska-Lincoln The University of North Carolina University of Notre Dame University of Pennsylvania University of Pittsburgh University of Utah University of Virginia University of Washington University of Wisconsin-Madison Utah State University Yale University Library

6. The Corpus

8. Visualizations

11. Issues of Scale: The Index

12. Size

13. Performance or

14. Issues of Scale: Languages

15. Lots of them

16. A sad example: the page image the extracted text

17. Complexity

18. Issues of Scale: OCR Failures and Correction

19. OCR Failures

20. Corrections

21. Corrections

22. Corrections

23. Thank you. [email_address] http://www.cdlib.org/services/collections/massdig/