QUIP: Query-driven Missing Value Imputation This paper develops a query-time missing value imputation frame- work, entitled QUIP, that minimizes the joint costs of imputation and query execution. QUIP achieves this by modifying how rela- tional operators are processed. It adds a cost-based decision function in each operator that checks whether the operator should invoke imputation […]

February 17, 2023, Friday, 1:00 PM - 2 PM Donald Bren Hall 4011, ICS, UC Irvine Zoom: https://uci.zoom.us/j/92445274511 (UCI only) Abstract Volume leakage is a major threat to searchable encryption and data outsourcing, where an adversary can obtain the number of values in response to a query and deduce additional information about the data, such as the […]

The Department of Computer Science, UC Irvine WELCOMES Prof. Babak Salimi UCSD Hosts: Prof. Chen Li Certifying the Fairness of Predictive Models in the Face of Selection Bias   Abstract: The widespread use of data-driven algorithmic decision making in crucial areas such as hiring, loan assessments, medical diagnoses, and pretrial release has raised questions about […]

The Department of Computer Science, Information Systems Group, UC Irvine WELCOMES Dr. Alex Behm Databricks Photon: How to think vectorized 3/3/2023, Friday, 1:00 - 2 pm Place DBH 4011 I'm presenting Photon, a new vectorized execution engine powering Databricks written from scratch in C++. I will introduce you to its basic building blocks by walking […]