Stephen Roehrig


Teaching Professor of Information Systems, H. John Heinz III School of Public Policy and Management

Education:
  • Suffolk University - B.S. - 1974
  • University of Rhode Island - M.S. - 1976
  • University of Pennsylvania - Ph.D. - 1992
Teaching and Research Interests:
  • Relational database and data warehousing theory and practice, privacy and confidentiality in large databases, computational models of defeasible reasoning.
Published Papers: 
  • Disclosure Detection in Multivariate Categorical Databases: Auditing Confidentiality Protection through Two New Matrix Operators
    Management Science 45, 1999; 1710-1723.
    (with: Sumit Chowdhury, George Duncan, Ramayya Krishnan, Sumita Mukherjee)

  • The Relationship Between Advertising and Content Provision on the Internet
    European J. Marketing, Summer 1998.
    (with: Y. Yuan, J. Caulkins)

  • Incompletely Specified Probabilistic Networks
    Journal of Management Information Systems, 1995.

  • Path Analysis and Probabilistic Networks
    Decision Support Systems, 1995.

Publications: 
  • "The Structure of W-Limit Sets of Nonexpansive Maps"
    Proceedings of the American Mathematical Society, (1981).
    (with: R. Sine)

Consulting:
  • U.S. Bureau of the Census
  • U.S. Bureau of Labor Statistics
  • U.S. Energy Information Agency