Universitat Politècnica de Catalunya
Universitat Politècnica de Catalunya. Departament d'Enginyeria de Serveis i Sistemes d'Informació
Universitat Politècnica de Catalunya. inSSIDE - integrated Software, Service, Information and Data Engineering
Universitat Politècnica de Catalunya. IMP - Information Modeling and Processing
2017
With the arrival of Data Lakes (DL) there is an increasing need for efficient dataset classification to support data analysis and information retrieval. Our goal is to use meta-features describing datasets to detect whether they are similar. We utilise a novel proximity mining approach to assess the similarity of datasets. The proximity scores are used as an efficient first step, where pairs of datasets with high proximity are selected for further time-consuming schema matching and deduplication. The proposed approach helps in early-pruning unnecessary computations, thus improving the efficiency of similar-schema search. We evaluate our approach in experiments using the OpenML online DL, which shows significant efficiency gains above 25% compared to matching without early-pruning, and recall rates reaching higher than 90% under certain scenarios.
Peer Reviewed
Postprint (author's final draft)
Conference report
English
Àrees temàtiques de la UPC::Informàtica::Enginyeria del software; Data mining; Proximity Mining; Data Lakes; Data Governance; Similarity Search; Mineria de dades
Springer
https://link.springer.com/chapter/10.1007/978-3-319-68474-1_20
Open Access
E-prints [72987]
