Articolo in rivista, 2022, ENG, 10.7717/PEERJ-CS.1058
De Bonis M.; Manghi P.; Atzori C.
CNR-ISTI, Pisa, Italy; CNR-ISTI, Pisa, Italy; CNR-ISTI, Pisa, Italy
Deduplication is a technique aiming at identifying and resolving duplicate metadata records in a collection. This article describes FDup (Flat Collections Deduper), a general-purpose software framework supporting a complete deduplication workflow to manage big data record collections: metadata record data model definition, identification of candidate duplicates, identification of duplicates. FDup brings two main innovations: first, it delivers a full deduplication framework in a single easy-to-use software package based on Apache Spark Hadoop framework, where developers can customize the optimal and parallel workflow steps of blocking, sliding windows, and similarity matching function via an intuitive configuration file; second, it introduces a novel approach to improve performance, beyond the known techniques of "blocking" and "sliding window", by introducing a smart similarity matching function T-match. T-match is engineered as a decision tree that drives the comparisons of the fields of two records as branches of predicates and allows for successful or unsuccessful early-exit strategies. The efficacy of the approach is proved by experiments performed over big data collections of metadata records in the OpenAIRE Research Graph, a known open access knowledge base in Scholarly communication.
PeerJ Computer Science 8 (e1058)
Deduplication, Framework, Fdup
Manghi Paolo, De Bonis Michele, Atzori Claudio
ISTI – Istituto di scienza e tecnologie dell'informazione "Alessandro Faedo"
ID: 476987
Year: 2022
Type: Articolo in rivista
Creation: 2023-01-26 15:41:45.000
Last update: 2023-01-27 10:05:10.000
CNR authors
External IDs
CNR OAI-PMH: oai:it.cnr:prodotti:476987
DOI: 10.7717/PEERJ-CS.1058
Scopus: 2-s2.0-85143878034
ISI Web of Science (WOS): 000854914600001