Keynote talk: "Towards Highly Versatile Document Image Analysis," at the 2nd Korea-Japan Pattern Recognition Workshop, Matsushima, Japan, October, 2007 [to appear].

Keynote Conference Address:  "Digital Libraries and Document Image Analysis," at the 7th IAPR Int'l Conf. on Document Analysis and Recognition, Edinburgh, Scotland, August 4, 2003. [PPT]

Invited Talk:  "Image Understanding and Web Security," at the 1st IEEE Workshop on Document Image Analysis and Retrieval, Madison, WI, June 21, 2003. [PPT]

Keynote Address:  "Document Image Degradation Modeling," at the 4th IAPR Int'l Workshop on Document Analysis Systems, Rio de Janeiro, Brazil, 2000.

Plenary Talk:  "Document Image Analysis Research," at the IEEE Int'l Conf. on Computer Vision and Pattern Recognition, Fort Collins, CO 1999.

Invited Talk:  "Quantitative Evaluation Methodologies in Computer Vision," at the IEEE Workshop on Emprical Evaluation Methods in Computer Vision, Santa Barbara, CA, 1998.

Keynote Technology Speech:  at the USPS Advanced Technology Conference, Washington, DC, 1990.

Invited Tutorial Talk:  "Design Rule Checking Techniques," at the IEEE CANDE Workshop, Long Branch, NJ, 1977.