Browsing by Author "Gutiérrez Gallardo, Claudio"
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- ItemFísica : su trayectoria en Chile (1800-1960).(2006) Gutiérrez Gallardo, Claudio
- ItemSome Remarks on the Paper "semQA: SPARQL with Idempotent Disjunction”(IEEE, 2011) Arenas Saavedra, Marcelo Alejandro; Gutiérrez Gallardo, Claudio; Pérez, JorgeIn the paper, “semQA: SPARQL with Idempotent Disjunction”, the authors study the RDF query language SPARQL. In particular, they claim that some of the results presented in are not correct. In this note, we refute the claims made in, and actually show that some of the formal results of are incorrect.