University of Ioannina (UOI)Panos Vassiliadis
Big Data architectures allow to flexibly store and process heterogeneous data, from multiple sources, in its original format. The structure of those data, commonly supplied by means of REST APIs, is continuously evolving, forcing data analysts using it need to adapt their analytical processes after each release. This gets more challenging when aiming to perform an integrated or historical analysis of multiple sources. To cope with such complexity, in this collaboration we present the Big Data Integration ontology, the core construct for a data governance protocol that systematically annotates and integrates data from multiple sources in its original format. To cope with syntactic evolution in the sources, we present an algorithm that semi-automatically adapts the ontology upon new releases.
2022 Sergi Nadal, Alberto Abelló, Oscar Romero, Stijn Vansummerem, Panos Vassiliadis: Graph-Driven Federated Data Management (Extended Abstract). ICDE 2022 2019 Sergi Nadal, Oscar Romero, Alberto Abelló, Panos Vassiliadis, Stijn Vansummeren: An integration-oriented ontology to govern evolution in Big Data ecosystems. Inf. Syst. 2019