In general, I am interested in management of data, information and knowledge using computers. More specifically, my topics of interest include

• Data Management and Information Systems
  • Data modeling and Conceptual database design
  • Metadata Management and Data Semantics
  • Web Information Systems
• Quality Concerns in Data Management
  • Data quality assessment
    • Metrics for data quality
    • Data mining for data quality
  • Data profiling and cleaning
  • Design for higher quality data
  • Data privacy and security
  • Application-driven data quality (e.g., marketing, e-Business, healthcare, clinical research, bioinformatics)
• Knowledge Management
  • Semantic Web
  • Semantic Wiki (e.g., SMW)

My current research focuses on development and evaluation of a goal-oriented design methodology for higher quality data in relational databases, based on the techniques that have been developed in goal-oriented approaches to software requirements engineering and design (e.g., i* and Tropos).

In the past, I have also worked on following P2P data mangagement and knowledge management projects

• Hyperion (2004 - 2005)
• EXIP (reports) (2003-2005)

Journal Papers

• Tasmeia Yousaf, Iluju Kiringa, Lei Jiang. An Open Service Architecture for the Hyperion Peer Database System. International Journal of Cooperative Information Systems (IJCIS), 17(1): 53-75, 2008.

Conference & Workshop Papers

• Lei Jiang, Alex Borgida, and John Mylopoulos. Towards a Compositional Semantic Account of Data Quality Attributes. In Proceedings of the 27th International conference on Conceptual Modelling (ER'08), 2008.
  
  
• Lei Jiang, Alex Borgida, Thodoros Topaloglou, and John Mylopoulos. Data Quality by Design: A Goal-Oriented Approach. In Proceedings of the 12th International Conference on Information Quality (ICIQ'07), 2007.
  
  
• Lei Jiang, Thodoros Topaloglou, Alex Borgida and John Mylopoulos. Goal-Oriented Conceptual Database Design. In Proceedings of the 15th IEEE International Requirements Engineering Conference (RE'07), 2007.
  
  
• Lei Jiang, Thodoros Topaloglou, Alex Borgida and John Mylopoulos. Incorporating Goal Analysis in Database Design: A Case Study from Biological Data Management. In Proceedings of the 14th IEEE International Requirements Engineering Conference (RE'06), pages 196-204, 2006.
  
  
• Sotirios Liaskos, Lei Jiang, Alexei Lapouchnian, Yiqiao Wang, Yijun Yu, Julio Cesar Sampaio do Prado Leite, John Mylopoulos. Exploring the Dimensions of Variability: a Requirements Engineering Perspective. First International Workshop on Variability Modelling of Software-intensive Systems (VaMoS 2007), 2007.

Demos & Posters

• Patricia Rodríguez-Gianolli, Maddalena Garzetti, Lei Jiang, Anastasios Kementsietsidis, Iluju Kiringa, Mehedi Masud, Renée J. Miller, John Mylopoulos. Data Sharing in the Hyperion Peer Database System In Proceedings of the International Conference on Very Large Databases (VLDB'05), pages 1291-1294, 2005. (Demo)
  
  
• Patricia Rodríguez-Gianolli, Maddalena Garzetti, Lei Jiang, Anastasios Kementsietsidis, Iluju Kiringa, Mehedi Masud, Renée J. Miller, John Mylopoulos. Peer DB Management System - Data Sharing in the Hyperion Peer Database System, IBM Centers for Advanced Studies Conference (CASCON'05), 2005. (Poster)
  
  
• Lei Jiang. The Hyperion Project. 15th Annual Canadian Conference on Intelligent Systems, Québec City, Québec, 2005. (Poster)

Thesis

• Lei Jiang. Managing research knowledge with the exSecutive information portal. Master’s thesis, Dept. of Computer Science, University of Toronto, 2003.