activity
20152026
most citedPolitical Discourse on Social Media: Echo Chambers, Gatekeepers, and the Price of Bipartisanship

79 citations · 221 across the 28 of their papers we have counts for

collaborators

30 papers

cs.DB2026

Evaluating Learned Spatial Indexes

Sachith Pai, Jun Yang, Michael Mathioudakis

Learned indexes improve query performance by adapting search structures to data and workload distributions. Although many learned indexes have been proposed, their trade-offs remai…

cs.CL2026

Matching Meaning at Scale: Evaluating Semantic Search for 18th-Century Intellectual History through the Case of Locke

Yu Wu, Ananth Mahadevan, Filip Ginter +2

While digitized corpora have transformed the study of intellectual transmission, current methods rely heavily on lexical text reuse detection, capturing verbatim quotations but fun…

cs.DB2024★ 2 cited

Optimizing a Data Science System for Text Reuse Analysis

Ananth Mahadevan, Michael Mathioudakis, Eetu Mäkelä +1

Text reuse is a methodological element of fundamental importance in humanities research: pieces of text that re-appear across different documents, verbatim or paraphrased, provide…

cs.LG2023★ 1 cited

Cost-Effective Retraining of Machine Learning Models

Ananth Mahadevan, Michael Mathioudakis

It is important to retrain a machine learning (ML) model in order to maintain its performance as the data changes over time. However, this can be costly as it usually requires proc…

cs.DB2023

WaZI: A Learned and Workload-aware Z-Index

Sachith Pai, Michael Mathioudakis, Yanhao Wang

Learned indexes fit machine learning (ML) models to the data and use them to make query operations more time and space-efficient. Recent works propose using learned spatial indexes…

cs.DS2023★ 5 cited

Max-Min Diversification with Fairness Constraints: Exact and Approximation Algorithms

Yanhao Wang, Michael Mathioudakis, Jia Li +1

Diversity maximization aims to select a diverse and representative subset of items from a large dataset. It is a fundamental optimization task that finds applications in data summa…