4 papers
Entity Resolution via Batched Oracle Queries
Lorenzo Balzotti, Donatella Firmani, Luca Gagliardelli +1
We consider an oracle that processes a limited batch of records at a time and clusters those that refer to the same real-world entity. We study how to interrogate such an oracle to…
DXP: Billing Data Preparation for Big Data Analytics
Luca Gagliardelli, Domenico Beneventano, Marco Esposito +5
In this paper, we present the data preparation activities that we performed for the Digital Experience Platform (DXP) project, commissioned and supervised by Doxee S.p.A.. DXP mana…
Evaluation of Dataframe Libraries for Data Preparation on a Single Machine
Angelo Mozzillo, Luca Zecchini, Luca Gagliardelli +3
Data preparation is a trial-and-error process that typically involves countless iterations over the data to define the best pipeline of operators for a given task. With tabular dat…
Generalized Supervised Meta-blocking (technical report)
Luca Gagliardelli, George Papadakis, Giovanni Simonini +2
Entity Resolution constitutes a core data integration task that relies on Blocking in order to tame its quadratic time complexity. Schema-agnostic blocking achieves very high recal…