Research Interests
- Database Systems: relational, deductive, object-oriented, and hierarchical ( not what you think!).
- Query Languages and Query Optimization.
- Data Analysis: multi-dimensional databases, data warehousing, OLAP,
data mining.
- Information Integration: multi-database systems, interoperability,
schema integration and evolution.
- Newer Data Models: social networks, semi-structured data, data on the web, XML.
- Networks: social networks, LDAP network directories, network data management.
- Logic Programming: extensions, semantics, and optimization; application for data cleaning.
- Higher-Order Logics and Advanced Database Models.
- Uncertainty in Data Modeling and Deduction.
- Personalization and Social Web: recommender systems, social networks and media.
- Sports Analytics: for now, cricket.
Current Projects:
- From Database Management Systems (DBMS) to Data and Model Management Systems (DMMS). Funded by NSERC Discovery Grant.
- Causality: Counterfactuals, Causal DAG as constraints on models, causal DAG extraction. Supported by NSERC.
- Novel Statistical and Machine Learning Algorithms for Analysis of
Canadian Political Donations and Lobbying Data. Funded by Funded by NSERC Alliance Grant, in collaboration with
Investigative Journalism Foundation and Prof Rohan Alexander, Department of Statistical Sciences, University of Toronto.
-
Climate Action Delay Discourse Analysis. Funded by SSHRC Insights Grant, in collaboration with Prof Katya Rhodes, Department of Public Administration, University of Victoria.
- AI in biology (e.g., peptide sequencing); AI in healthcare (e.g., agentic workflow for multi-turn patient-doctor conversation). In collaboration with Prof Muhammad Abdul-Mageed.
Past Projects:
- Next Generation Applications of Social Systems (supported by NSERC Discovery Grant)
- Business Intelligence (funded by an NSERC Strategic Grant on Business Intelligence Network, in
cooperation with top universities in Canada and leading industries including IBM/Cognos and
SAP/Business Objects):
- Analyzing Influential Behavior in Very Large Social Networks
(with Francesco Bonchi and Amit Goyal)
- Data Cleaning Using Integrity Constraints (with Leo Bertossi and Solmaz Kolahi)
- Keyword Oriented Online Analytical Processing (KOOLAP)
(with Shanshan Chen, Naresh Kumar, Pei Lee, and Min Xie)
- Building Taxonomies from Documents and Social Media
(with Ali Moosavi and Rachel Pottinger)
- Data Cleaning in Data Warehouses (with Leo Bertossi)
- Privacy-aware Recommender Systems (with Rui Chen and Min Xie)
- Sports Analytics: Outcome Prediction of One Day International Cricket Matches
- Query Processing by, for, and of the Masses: Putting the User in the Loop
(funded by NSERC)
- Social Networks Structure Analysis (with Francesco Bonchi, David Gleich, Chen Grief and Pooya Esfandiar)
- Privacy-preserving data mining (with Shaofeng Bu and Raymond Ng)
- XML
Data Warehouse, funded by NSERC
- SOQCET
- X-DARES-U
-
Constraint-Driven Data Mining on Heterogeneous Data Stores, funded
by BC Advanced Systems Institute.
-
New Frontiers in Data Mining (Joint Project: UBC/UofT/SFU), funded
by NCE/IRIS
-
Building Querying, Analyzing, and Mining Data Warehouses on the Internet
(Joint Project: Concordia/SFU/UBC/UofT), funded by NCE/IRIS
- Data Warehousing and OLAP
- Database Mining
- Semi-structured Data and XML
- Network Directories (aka LDAP)
- Information Integration
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