Recent Talks

• Path Constraints on Semistructured and Structured Data (.ps)  
  The 17th ACM Symposium on Principles of Database Systems   (PODS'98), 1998.
  

• Interaction between Path and Type Constraints (.ps)  
  The 18th ACM Symposium on Principles of Database Systems   (PODS'99), 1999.
  

• Query Optimization for Semistructured Data using Path Constraints in a Deterministic Data Model (.ps)  
  The 7th Intl. Workshop on Database Programming Languages   (DBPL'99), 1999.
  

• Specifying and Reasoning about Workflows with Path Constraints (.ps)  
  The 5th International Computer Science Conference   (ICSC'99), 1999.
  

• Integrity Constraints for XML (.ps)  
  A talk given at Bell Labs, 2000.
  

• Specifying XML Data with Integrity Constraints (.ppt)  
  A tutorial given at Peking University and Chinese Academy of Sciences, May 2001.
  

• On XML Integrity Constraints in the Presence of DTDs (.ps)  
  The 20th ACM Symposium on Principles of Database Systems   (PODS'01), 2001.
  

• Keys with Upward Wildcards for XML (.ppt)  
  The 12th International Conference on Database and Expert Systems Applications   (DEXA'01), 2001.
  

• Constraints for XML (.ppt)  
  The XVI Brazilian Symposium on Databases   (SBBD'01), 2001.
  Tutorial.
  

• Keys for XML (.ppt)  
  A talk given at University of Toronto, 2001.
  

• On Verifying Consistency of XML Specifications (.ppt)  
  A talk given at Edinburgh University, February and March 2002.
  

• DTD-Directed Transformations for Data Exchange in XML (.ppt)  
  A talk given at Edinburgh University, March 2002.
  

• DTD-Directed Publishing with Attribute Translation Grammars  
  The 28th International Conference on Very Large Data Bases   (VLDB'02),   2002
  

• DTD-Directed Publishing and Integration  
  A talk given at Peking University and Renmin University, September 2002
  

• Capturing both Types and Constraints in Data Integration  
  ACM SIGMOD Conference on Management of Data (SIGMOD), 2003
  

• Schema Directed XML Publishing and Update  
  National e-Science Centre, UK, 2004
  

• Secure XML Querying with Security Views  
  ACM SIGMOD Conference on Management of Data (SIGMOD), 2004