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  Claudio Gutierrez  
 

Foundations of RDF Databases

Claudio Gutierrez, Universidad de Chile

Thursday, June 5th, 09:00

Abstract

The motivation behind the development of RDF was, to borrow the words Tim Berners-Lee used for the Semantic Web, "to have a common and minimal language to enable to map large quantities of existing data onto it so that the data can be analyzed in ways never dreamed of by its creators." To bring to reality this vision, the processing of RDF data at big scale must be viable. This challenge amounts essentially to develop the theory and practice of RDF databases.

In this talk, we will present the current state of the theory of RDF databases, from the perspective of the work of our (Santiago, Chile) group. We will start discussing the RDF data model from a database perspective [3]. Then we will present the basis of querying RDF and RDFS data, and discuss the pattern matching paradigm for querying RDF [2]. (We will also briefly discuss the challenges of viewing RDF from a graph database perspective [1].) Finally we will discuss SPARQL, the recent W3C recommendation query language for RDF, its semantics, expressiveness and complexity [4].

  1. R. Angles and C. Gutierrez. Querying RDF Data from a Graph Database Perspective. In 2nd European Semantic Web Conference, ESWC, 2005.
  2. C. Gutierrez, C. Hurtado, and A. O. Mendelzon. Foundations of Semantic Web Databases. In ACM Symposium on Principles of Database Systems, PODS, 2004.
  3. S. Munoz, J. Perez, and C. Gutierrez. Minimal Deductive Systems for RDF. In 4th European Semantic Web Conference, ESWC, 2007.
  4. 4. J. Perez, M. Arenas, and C. Gutierrez. The Semantics and Complexity of SPARQL. In 5th International Semantic Web Conference, ISWC, 2006.

Bio

Claudio Gutierrez received degrees in mathematics from Universidad de Chile, in mathematical logic from Universidad Catolica de Chile, and a Ph.D. degree in computer science from Wesleyan University, U.S.A. Currently, he is associated professor in the Computer Science Department at the Universidad de Chile, and associated researcher at the Center for Web Research. His research interests lie in the intersection of databases and the Semantic Web. He has received best paper awards at the European Semantic Web Conference in 2005, at the International Semantic Web Conference in 2006, and at the European Semantic Web Conference in 2007.

  

 
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