Helping humans make better decisions.
I build database-native systems for prescriptive analytics.
Decision-making, as declarative as SQL.
Research
Publications →
My research on database-native prescriptive analytics spans six aspects — from query languages and execution engines to learning user intent, self-tuning, temporal reasoning, and fairness.
Videos
VLDB 2020 — Best Demonstration Award
SIGMOD 2020 — Technical Paper Talk
Talks
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2024
Enabling In-Database Decision Support with Package Queries
Gray Systems Lab, Microsoft -
2024
Wred: Workload Reduction for Scalable Index Tuning
SIGMOD 2024, Santiago, Chile -
2021
Package Queries: Scalable Prescriptive Analytics Close to the Data
Georgia Tech; Carnegie Mellon University -
2021
Stochastic Package Queries for In-Database Prescriptive Analytics
Sisu Data -
2020–21
Package Queries: Enabling Declarative and Scalable Prescriptive Analytics in Relational Data
Harvard, DASLab; Megagon Labs; MIT CSAIL, Data Systems Group -
2020
sPaQLTooLs: A Stochastic Package Query Interface for Scalable Constrained Optimization
VLDB 2020 -
2020
Stochastic Package Queries in Probabilistic Databases
SIGMOD 2020 -
2020
Stochastic Package Queries for In-Database Constrained Optimization Under Uncertainty
NEDB, MIT, Cambridge, MA; INFORMS 2020 -
2017
Scalable Package Queries in Relational Database Systems
Microsoft Research, Redmond; VLDB 2016, New Delhi -
2016
Conceptual Queries for Multiple Data Sources
IBM Research, Austin, TX -
2015
Package Queries: From Tuples to Packages
Berkeley Lab; AMPLab, UC Berkeley -
2014
Improving Package Recommendations through Query Relaxation
VLDB 2014, Hangzhou -
2013–14
Metric Spaces for Temporal Information Retrieval
ECIR 2014, Amsterdam; U. Bologna; Aarhus University
Service
Program Committee
ICDE 2027, VLDB 2027, SIGMOD 2026, SIGMOD 2025, VLDB 2025, DataPlat @ ICDE 2024, TKDE 2020
Guest Editorial Board
Information Processing & Management, special issue on Time & Information Retrieval, 2014/15
External Review Committee
VLDB 2017, SIGMOD 2015, VLDB 2015, RANLP 2013