| bio |
schedule | about me
I am a professor of Computer Science
at Pomona College. I joined Pomona in fall 2015 and chaired the department between 2017 and 2020.
My research interests include database theory and
database systems, management and search of semi-structured and unstructured
data, and analysis of social media data for technical and social insights.
- Recent publications:
Jelle Hellings, Marc Gyssens, Yuqing Wu, Dirk Van Gucht, Jan Van den Bussche, Stijn Vansummeren, George H. L. Fletcher: Comparing Downward Fragments of the Relational Calculus with Transitive Closure on Trees. Inf. Syst. 89: 101467 (2020).
Kaijie Zhu, George Fletcher, Odysseas Papapetrou, Nikolay Yakovets, Yuqing Wu: Scalable temporal clique enumeration. In International Symposium on Spatial and Temporal Databases. In SSTD 2019: 120-129.
Jelle Hellings, Marc Gyssens, Dirk Van Gucht, Yuqing Wu: First-order Definable Counting-only Queries. In Annals of Mathematics and Artificial Intelligence 87(1-2). 109-136 (2019).
Marc Gyssens, Dirk Van Gucht, Jelle Hellings, Jan Paredaens, Jef Wijsen, Yuqing Wu: Calculi for Symmetric Queries. in Journal of Computer and System Sciences. 105: 54-86 (2019).
Jelle Hellings, Marc Gyssens, Dirk Van Gucht, Yuqing Wu:First-Order Definable Counting-Only Queries. In Foundations of Information and Knowledge Systems 2018: 225-243.
Jelle Hellings, Yuqing Wu, Marc Gyssens, Dirk Van Gucht: The Power of Tarski's Relation Algebra on Trees. In Foundations of Information and Knowledge Systems 2018: 244-264.