46 citations · 72 across the 6 of their papers we have counts for
4 papers · 1 filter
A Cost-based Storage Format Selector for Materialization in Big Data Frameworks
Rana Faisal Munir, Alberto Abelló, Oscar Romero +2
Modern big data frameworks (such as Hadoop and Spark) allow multiple users to do large-scale analysis simultaneously. Typically, users deploy Data-Intensive Workflows (DIWs) for th…
Day-ahead Trading of Aggregated Energy Flexibility - Full Version
Emmanouil Valsomatzis, Torben Bach Pedersen, Alberto Abello
Flexibility of small loads, in particular from Electric Vehicles (EVs), has recently attracted a lot of interest due to their possibility of participating in the energy market and…
PRESISTANT: Learning based assistant for data pre-processing
Besim Bilalli, Alberto Abelló, Tomàs Aluja-Banet +1
Data pre-processing is one of the most time consuming and relevant steps in a data analysis process (e.g., classification task). A given data pre-processing operator (e.g., transfo…
An Integration-Oriented Ontology to Govern Evolution in Big Data Ecosystems
Sergi Nadal, Oscar Romero, Alberto Abelló +2
Big Data architectures allow to flexibly store and process heterogeneous data, from multiple sources, in their original format. The structure of those data, commonly supplied by me…