2026-04-19T19:15:30Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1170362026-01-30T08:40:03Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc Al-serafi, Ayman Mounir Mohamed author Calders, Toon author Abelló Gamazo, Alberto author Romero Moral, Óscar author 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) Àrees temàtiques de la UPC::Informàtica::Enginyeria del software Data mining Proximity Mining Data Lakes Data Governance Similarity Search Mineria de dades DS-Prox : dataset proximity mining for governing the data lake