3 papers
cs.DB2025
ACE: A Cardinality Estimator for Set-Valued Queries
Yufan Sheng, Xin Cao, Kaiqi Zhao +4
Cardinality estimation is a fundamental functionality in database systems. Most existing cardinality estimators focus on handling predicates over numeric or categorical data. They…
cs.DB2025
SemaSK: Answering Semantics-aware Spatial Keyword Queries with Large Language Models
Zesong Zhang, Jianzhong Qi, Xin Cao +1
Geo-textual objects, i.e., objects with both spatial and textual attributes, such as points-of-interest or web documents with location tags, are prevalent and fuel a range of locat…
cs.DB2023
Efficient Cost Modeling of Space-filling Curves
Guanli Liu, Lars Kulik, Christian S. Jensen +2
A space-filling curve (SFC) maps points in a multi-dimensional space to one-dimensional points by discretizing the multi-dimensional space into cells and imposing a linear order on…