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A cost-based optimizer for SPARQL queries
Conference ObjectAbstract:Palabras claves:Autores:María-Esther Vidal, Ruckhaus E., Ruiz E., Sierra J.Fuentes:scopusANAPSID: An adaptive query processing engine for SPARQL endpoints
Conference ObjectAbstract: Following the design rules of Linked Data, the number of available SPARQL endpoints that support remPalabras claves:Autores:Acosta M., Castillo J., Lampo T., María-Esther Vidal, Ruckhaus E.Fuentes:scopusChoosing between graph databases and RDF engines for consuming and mining linked data
Conference ObjectAbstract: Graphs naturally represent Linked Data and implementations of graph-based tasks are required not onlPalabras claves:Autores:De Abreu D., Flores A., María-Esther Vidal, Palma G., Pestana V., Pinero J., Queipo J., Sánchez J.Fuentes:scopusCompacting frequent star patterns in RDF graphs
ArticleAbstract: Knowledge graphs have become a popular formalism for representing entities and their properties usinPalabras claves:Knowledge Graph, Linked data, RDF compaction, semantic webAutores:Auer S., Karim F., María-Esther VidalFuentes:scopusBOUNCER: Privacy-Aware Query Processing over Federations of RDF Datasets
Conference ObjectAbstract: Data provides the basis for emerging scientific and interdisciplinary data-centric applications withPalabras claves:Autores:Almhithawi Z., Auer S., Endris K.M., Lytra I., María-Esther VidalFuentes:scopusBatWAn: A binary and multi-way query plan analyzer
Conference ObjectAbstract: The majority of existing SPARQL query engines generate query plans composed of binary join operatorsPalabras claves:Autores:Galkin M., María-Esther VidalFuentes:scopusBenchmarking federated SPARQL query engines: Are existing testbeds enough?
Conference ObjectAbstract: Testbeds proposed so far to evaluate, compare, and eventually improve SPARQL query federation systemPalabras claves:Autores:Buil-Aranda C., Corcho O., María-Esther Vidal, Montoya G., Ruckhaus E.Fuentes:scopusAnswering top K queries efficiently with overlap in sources and source paths
Conference ObjectAbstract: Challenges in answering queries over Web-accessible sources are selecting the sources that must be aPalabras claves:Autores:Bleiholder J., María-Esther Vidal, Naumann F., Rashid L., Wu Y.Fuentes:scopusCapturing knowledge in semantically-typed relational patterns to enhance relation linking
Conference ObjectAbstract: Transforming natural language questions into formal queries is an integral task in Question AnswerinPalabras claves:Knowledge Capture, Knowledge graphs, Question Answering Systems, relation linkingAutores:Auer S., Jaradeh M.Y., Lange C., Lytra I., María-Esther Vidal, Mulang’ I.O., Sakor A., Singh K.Fuentes:scopusDEFENDER: A decomposer for queries against federations of endpoints
Conference ObjectAbstract: We present DEFENDER and illustrate the benefits of identifying promising query decompositions and efPalabras claves:Autores:Acosta M., María-Esther Vidal, Montoya G.Fuentes:scopus