4 papers
Space-Time Tradeoffs for Spatial Conjunctive Queries
Aryan Esmailpour, Xiao Hu, Stavros Sintos
Given a conjunctive query and a database instance, we aim to develop an index that can efficiently answer spatial queries on the results of a conjunctive query. We are interested i…
Fair-Count-Min: Frequency Estimation under Equal Group-wise Approximation Factor
Nima Shahbazi, Stavros Sintos, Abolfazl Asudeh
Frequency estimation in streaming data often relies on sketches like Count-Min (CM) to provide approximate answers with sublinear space. However, CM sketches introduce additive err…
A Theoretical Framework for Distribution-Aware Dataset Search
Aryan Esmailpour, Sainyam Galhotra, Rahul Raychaudhury +1
Effective data discovery is a cornerstone of modern data-driven decision-making. Yet, identifying datasets with specific distributional characteristics, such as percentiles or pref…
On Reporting Durable Patterns in Temporal Proximity Graphs
Pankaj K. Agarwal, Xiao Hu, Stavros Sintos +1
Finding patterns in graphs is a fundamental problem in databases and data mining. In many applications, graphs are temporal and evolve over time, so we are interested in finding du…