HOME    »    PROGRAMS/ACTIVITIES    »    Annual Thematic Program
IMA Tutorial
Digital Libraries
Thursday 25- Friday 26 January 2001


Organizer:  

Ahmed Tewfik
Department of Electrical Engineering
University of Minnesota
tewfik@ee.umn.edu

 

Speakers: James D. Johnston (AT&T Laboratories, Research), Shashi Shekhar (Minnesota), Sameh Sowelam ( Cognicity Corp.)

Among the issues to be addressed in the tutorial are:

Databases: security, privacy, probablistic learning, search

Encryption: Security, privacy, anonymity,watermarking, e-law

Perceptual Coding - A tutorial on methods and problems

James D. Johnston, AT&T

 

Data Modeling for Digital Libraries

Shashi Shekhar, University of Minnesota    Slides

Data modeling and representation is a critical, and possibly the most difficult, step in constructing any kind of datastore, including digital libraries, datawarehouses and databases. Errors in data models may lead to irrelevant or incorrect answers to user queries, as well as poor reliability and performance. The objective of data modeling is to complete a rigorous design with quality checks before the physical implementation of the digital library. A common approach to data modeling and representation of multimedia content in digital libraries is via the design of relevant Abstract Data Types, e.g. audio, video, images, spatial, temporal, etc., which can be integrated into popular modeling languages using their extensible type systems. Data models and representations of multimedia data should capture relevant aspects of domain semantics while providing support for efficient storage (e.g. compression), retrieval (e.g. querying), transmission and rendering (display).

Watermarking

Sameh Sowelam, Cognicity Corp.

Watermarking refers to the process of embedding data in an audio, image, video or text file. Watermarking is currently in use in copyright and copy protection systems, one-to-one marketing and smart media files. In this tutorial, We will us examples from currently fielded watermarking based systems to review the different forms of watermarking and data embedding techniques. We will focus on the capabilities and limitations of watermarking in each of the broad application areas where the technology has been deployed. We will also provide a quick introduction to the processing, communications, cryptography and human perception theories that underlie all watermarking approaches.

TUTORIAL SCHEDULE

THURSDAY, JANUARY 25
All talks are in Lind Hall 409 unless otherwise noted.
9:20 am Willard Miller, Fred Dulles Introduction
9:30 am Shashi Shekhar
University of Minnesota

Data Modeling for Digital Libraries

Slides

10:30 am Break Lind Hall 400
2:00 pm Sameh Sowelam
Cognicity Corp.

Watermarking

Slides    pdf    html

FRIDAY, JANUARY 26
All talks are in Lind Hall 409 unless otherwise noted.
10:30 am Break Lind Hall 400
2:00 pm James D. Johnston
AT&T Labs Research
Perceptual Coding - A Tutorial on Methods and Problems

Slides

3:00 pm Break Lind Hall 400
3:30 pm James D. Johnston
AT&T Labs Research
Perceptual Coding - A Tutorial on Methods and Problems (continued)

Slides

LIST OF CONFIRMED PARTICIPANTS
(in addition to postdocs and long term visitors)

as of 1/26/2001
Name Department Affiliation
Chris Burns Software Development Lambsoft, Inc.
Christine Cheng Mathematical Sciences Johns Hopkins University
Fred Dulles   Institute for Mathematics & its Applications
Marc Jensen   Lambsoft, Inc.
Moon-Gu Jeon Computer Science University of Minnesota
James D. Johnston   AT&T Labs., Research
James P. Licari Digital Technology Center University of Minnesota
Phil Mendelsohn Mathematics University of Minnesota
Willard Miller   Institute for Mathematics & its Applications
Christina Miske   Lambsoft, Inc.
Shashi Shekhar Computer Science University of Minnesota
Sameh Sowelam   Cognicity, Inc.
Jeffrey Thingvold   Lambsoft, Inc.


Material from Talks

2000-2001 Program: Mathematics in Multimedia

top of page

Go