collaborators

5 papers

cs.DB2026

The Missing Dimensions in Geo-Distributed Database Evaluation

Oto Mraz, Kyriakos Psarakis, George Christodoulou +2

Geo-distributed OLTP databases are widely deployed across cloud regions, yet current evaluation practices do not cover the challenges of this aspect. Existing benchmarks assume sta…

cs.DB2025

LAKEGEN: A LLM-based Tabular Corpus Generator for Evaluating Dataset Discovery in Data Lakes

Zhenwei Dai, Chuan Lei, Asterios Katsifodimos +3

How to generate a large, realistic set of tables along with joinability relationships, to stress-test dataset discovery methods? Dataset discovery methods aim to automatically iden…

cs.DB2025

Transactional Cloud Applications: Status Quo, Challenges, and Opportunities

Rodrigo Laigner, George Christodoulou, Kyriakos Psarakis +2

Transactional cloud applications such as payment, booking, reservation systems, and complex business workflows are currently being rewritten for deployment in the cloud. This migra…

cs.DC2025

Styx: Transactional Stateful Functions on Streaming Dataflows

Kyriakos Psarakis, George Christodoulou, George Siachamis +2

Developing stateful cloud applications, such as low-latency workflows and microservices with strict consistency requirements, remains arduous for programmers. The Stateful Function…

cs.DB2025

CoddLLM: Empowering Large Language Models for Data Analytics

Jiani Zhang, Hengrui Zhang, Rishav Chakravarti +6

Large Language Models (LLMs) have the potential to revolutionize data analytics by simplifying tasks such as data discovery and SQL query synthesis through natural language interac…