The Penn DB Group headed to Boston this week for the VLDB conference! At the main conference, undergraduate alumni Daniel Xue presented his paper about fully concurrent GROUP BY aggregation, which was his senior thesis at Penn last year. Daniel’s work shows that a simple custom hash table may be Read more
The Penn Database Group is welcoming Alan Yao to the Ph.D. program this year! Alan earned his bachelor’s and master’s degree from UCLA. Alan will work wit the DB group and with Jake Gardner at the intersection of machine learning and data management.
Our group won the 2026 CIDR Best Paper Award for our paper, “Survivorship Bias in Industrial Database Workloads.” As we look at our workload logs now, how can we possibly predict the query the user wants to run, but cannot run? Marcus et al., “Survivorship Bias in Industrial Database Workloads” Read more
Many of us attended the Northeast Database Day meetup last week at UMass Boston! Penn students presented five posters: In addition to student posters, Ryan presented one of the three keynotes, “Next Steps for Learned Query Optimization” (slides).
The Penn Database Group is welcoming Noopur Bhatt to the Ph.D. program this year! Noopur previously earned her master’s degree from Columbia University and her bachelor’s degree from Georgia Tech. Noopur will work with both the DB group and the Schlein Center for Cybersecurity at the intersection of policy, security, Read more
The Penn Database Group is welcoming Zijie Zhao to the Ph.D. program this year! Zijie previously earned his bachelor’s degree from Tianjin University, and is joining the DB group to work on adaptive and self-tuning systems.
The Penn DB Group presented a number of papers at SIGMOD 2024, hosted in Santiago, Chile! Penn presented five papers (four in SIGMOD and one in aiDM). Ph.D. student Soonbo Han (advisor: Zachary Ives) presented his work titled “Implementation Strategies for Views over Property Graphs,” which won the best paper Read more
This May, several members of the Penn DB group attended the Northeast Database Day hosted at BU! The group presented two posters on query optimization. Ph.D. student Jeff Tao (supervisors: Ryan Marcus and Andrew Head) presented his work on using Bayesian optimization and deep learning to search for optimal query Read more
The Penn Database Group recently returned from VLDB in lovely Vancouver! Penn students, faculty, and collaborators presented three research papers and two workshop papers at the conference. Ph.D. student Chenyuan Wu (supervisor: Boon Thau Loo) presented work on FlexChain and AdaChain. FlexChain (PDF) is the first work to present a Read more
The Penn Database Group is welcoming to new Ph.D. students this year! Jeff Tao Zixuan Yi