Rocker: A Refinement Operator for Key Discovery
Rocker is a refinement-operator-based approach for the extraction of keys and almost-keys from RDF datasets. Besides being finite, proper and non-redundant, Rocker is a state-of-the-art tool which can scale to very large knowledge bases.
Rocker is part of the LIMES framework. It can be downloaded from the GitHub repository. Rocker can be used as a tool for deduplication and RDF data quality. The demo page is currently available here.