activity
20202024
most citedData Lakes: A Survey of Functions and Systems

124 citations · 125 across the 4 of their papers we have counts for

collaborators

5 papers

cs.DB2024

OmniMatch: Effective Self-Supervised Any-Join Discovery in Tabular Data Repositories

Christos Koutras, Jiani Zhang, Xiao Qin +5

How can we discover join relationships among columns of tabular data in a data repository? Can this be done effectively when metadata is missing? Traditional column matching works…

cs.DB2022★ 1 cited

SiMa: Effective and Efficient Matching Across Data Silos Using Graph Neural Networks

Christos Koutras, Rihan Hai, Kyriakos Psarakis +2

How can we leverage existing column relationships within silos, to predict similar ones across silos? Can we do this efficiently and effectively? Existing matching approaches do no…

cs.DB2022

Amalur: Data Integration Meets Machine Learning

Rihan Hai, Christos Koutras, Andra Ionescu +5

The data needed for machine learning (ML) model training, can reside in different separate sites often termed data silos. For data-intensive ML applications, data silos pose a majo…

cs.DB2021★ 124 cited

Data Lakes: A Survey of Functions and Systems

Rihan Hai, Christos Koutras, Christoph Quix +1

Data lakes are becoming increasingly prevalent for big data management and data analytics. In contrast to traditional 'schema-on-write' approaches such as data warehouses, data lak…

cs.DB2020

Valentine: Evaluating Matching Techniques for Dataset Discovery

Christos Koutras, George Siachamis, Andra Ionescu +6

Data scientists today search large data lakes to discover and integrate datasets. In order to bring together disparate data sources, dataset discovery methods rely on some form of…