主讲人：智利天主教大学 Marcelo Arenas 副教授
时间： 11月5日 （星期三） 16：00
地点： 新 主楼 G 510
Title: Querying Semantic Web Data with SPARQL (and SPARQL 1.1)
The Semantic Web is the initiative of the W3C to make information on the Web readable not only by humans but also by machines. RDF is the data model for Semantic Web data, and SPARQL is the standard query language for this data model.
In the last ten years, we have witnessed a constant growth in the amount of RDF data available on the Web, which have motivated the theoretical study of some fundamental aspects of SPARQL and the development of efficient mechanisms for implementing this query language. In this talk, we survey some of the main results about the theory of RDF and SPARQL, putting emphasis on some of the new features of the language (such as navigation and federation) that were recently introduced in SPARQL.
Marcelo Arenas is an Associate Professor at the Department of Computer Science at the Pontificia Universidad Catolica de Chile. He received his PhD from the University of Toronto in 2005. His research interests are in different aspects of database theory, such as expressive power of query languages, database semantics, inconsistency handling, database design, XML databases, data exchange, metadata management and database aspects of the Semantic Web. He has received an IBM Ph.D. Fellowship (2004), and five best paper awards (PODS 2003, PODS 2005, PODS 2011, ISWC 2006 and ICDT 2010). He has served on multiple program committees, and since 2009 he has been participating as an invited expert in the World Wide Web Consortium.