Some Remarks on the Paper "semQA: SPARQL with Idempotent Disjunction"

—In the paper “semQA: SPARQL with Idempotent Disjunction” [Shironoshita et al. 2009], the authors study the RDF query language SPARQL. In particular, they claim that some of the results presented in [P´erez et al. 2006] are not correct. In this note, we refute the claims made in [Shironoshita et al. 2009], and actually show that some of the formal results of [Shironoshita et al. 2009] are incorrect.

• Type: Journal
• Year: 2011
• Where: TKDE
• Authors: Marcelo Arenas, Claudio Gutierrez, Jorge Pérez
• Keywords: P´erez Et, RDF Query Language, Shironoshita Et, TKDE 2011