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Universidad de Chile
(13 results)-
White Papers
Revisiting the Rice Theorem of Cellular Automata
February 24, 2011, 12:00am PST
A cellular automaton is a parallel synchronous computing model, which consists in a juxtaposition of finite automata whose state evolves according to that of their neighbors. It induces a...
Provided by Universidad de Chile
-
White Papers
Communication Complexity and Intrinsic Universality in Cellular Automata
September 17, 2010, 12:00am PDT
The notions of universality and completeness are central in the theories of computation and computational complexity. However, proving lower bounds and necessary conditions remains hard in most of...
Provided by Universidad de Chile
-
White Papers
Updating RDFS: From Theory to Practice
March 6, 2011, 12:00am PST
There is a comprehensive body of theory studying updates and schema evolution of knowledge bases, ontologies, and in particular of RDFS. In this paper the authors turn these ideas into practice by...
Provided by Universidad de Chile
-
White Papers
Subqueries in SPARQL
March 1, 2011, 12:00am PST
Subqueries are a powerful feature which allows enforcing reuse, composition, rewriting and optimization in a query language. In this paper the authors perform a comprehensive study of the...
Provided by Universidad de Chile
-
White Papers
Compact Representation of Large RDF Data Sets for Publishing and Exchange
September 16, 2010, 12:00am PDT
Increasingly huge RDF data sets are being published on the Web. Currently, they use different syntaxes of RDF, contain high levels of redundancy and have a plain indivisible structure. All this...
Provided by Universidad de Chile
-
White Papers
On the Semantics of SPARQL
June 28, 2009, 12:00am PDT
The Resource Description Framework (RDF) is the standard data model for representing information about World Wide Web resources. Jointly with its release as Recommendation of the W3C, the natural...
Provided by Universidad de Chile
-
White Papers
nSPARQL: A Navigational Language for RDF
June 18, 2010, 12:00am PDT
Navigational features have been largely recognized as fundamental for graph database query languages. This fact has motivated several authors to propose RDF query languages with navigational...
Provided by Universidad de Chile
-
White Papers
Simple and Efficient Minimal RDFS
May 24, 2009, 12:00am PDT
The original RDFS language design includes several features that hinder the task of developers and theoreticians. This paper has two main contributions in the direction of simplifying the...
Provided by Universidad de Chile
-
White Papers
Foundations of RDF Databases
April 15, 2009, 12:00am PDT
The goal of this paper is to give an overview of the basics of the theory of RDF databases. The authors provide a formal definition of RDF that includes the features that distinguish this model...
Provided by Universidad de Chile
-
White Papers
An Extension of SPARQL for RDFS
March 16, 2008, 12:00am PDT
RDF Schema (RDFS) extends RDF with a schema vocabulary with a predefined semantics. Evaluating queries which involve this vocabulary is challenging, and there is not yet consensus in the Semantic...
Provided by Universidad de Chile
-
White Papers
Modeling the Web of Data
May 17, 2011, 12:00am PDT
The view of a universal space of information as the (infinite) generalization of a library is an extremely useful one. It includes almost all facets the authors would like to incorporate when...
Provided by Universidad de Chile
-
White Papers
SNQL: A Social Networks Query and Transformation Language
April 23, 2011, 12:00am PDT
Social Network (SN) data has become ubiquitous, demanding advanced and flexible means to represent transform and query such data. In addition to the intrinsic challenges of querying graph data is...
Provided by Universidad de Chile
-
White Papers
Foundations of Semantic Web Databases
June 21, 2009, 12:00am PDT
The Semantic Web is based in the idea of a common and minimal language to enable large quantities of existing data to be analyzed and processed. This triggers the need to develop the database...
Provided by Universidad de Chile
-
White Papers
Foundations of Semantic Web Databases
June 21, 2009, 12:00am PDT
The Semantic Web is based in the idea of a common and minimal language to enable large quantities of existing data to be analyzed and processed. This triggers the need to develop the database...
Provided by Universidad de Chile
-
White Papers
SNQL: A Social Networks Query and Transformation Language
April 23, 2011, 12:00am PDT
Social Network (SN) data has become ubiquitous, demanding advanced and flexible means to represent transform and query such data. In addition to the intrinsic challenges of querying graph data is...
Provided by Universidad de Chile
-
White Papers
Modeling the Web of Data
May 17, 2011, 12:00am PDT
The view of a universal space of information as the (infinite) generalization of a library is an extremely useful one. It includes almost all facets the authors would like to incorporate when...
Provided by Universidad de Chile
-
White Papers
An Extension of SPARQL for RDFS
March 16, 2008, 12:00am PDT
RDF Schema (RDFS) extends RDF with a schema vocabulary with a predefined semantics. Evaluating queries which involve this vocabulary is challenging, and there is not yet consensus in the Semantic...
Provided by Universidad de Chile
-
White Papers
Foundations of RDF Databases
April 15, 2009, 12:00am PDT
The goal of this paper is to give an overview of the basics of the theory of RDF databases. The authors provide a formal definition of RDF that includes the features that distinguish this model...
Provided by Universidad de Chile
-
White Papers
Simple and Efficient Minimal RDFS
May 24, 2009, 12:00am PDT
The original RDFS language design includes several features that hinder the task of developers and theoreticians. This paper has two main contributions in the direction of simplifying the...
Provided by Universidad de Chile
-
White Papers
nSPARQL: A Navigational Language for RDF
June 18, 2010, 12:00am PDT
Navigational features have been largely recognized as fundamental for graph database query languages. This fact has motivated several authors to propose RDF query languages with navigational...
Provided by Universidad de Chile
-
White Papers
On the Semantics of SPARQL
June 28, 2009, 12:00am PDT
The Resource Description Framework (RDF) is the standard data model for representing information about World Wide Web resources. Jointly with its release as Recommendation of the W3C, the natural...
Provided by Universidad de Chile
-
White Papers
Compact Representation of Large RDF Data Sets for Publishing and Exchange
September 16, 2010, 12:00am PDT
Increasingly huge RDF data sets are being published on the Web. Currently, they use different syntaxes of RDF, contain high levels of redundancy and have a plain indivisible structure. All this...
Provided by Universidad de Chile
-
White Papers
Subqueries in SPARQL
March 1, 2011, 12:00am PST
Subqueries are a powerful feature which allows enforcing reuse, composition, rewriting and optimization in a query language. In this paper the authors perform a comprehensive study of the...
Provided by Universidad de Chile
-
White Papers
Updating RDFS: From Theory to Practice
March 6, 2011, 12:00am PST
There is a comprehensive body of theory studying updates and schema evolution of knowledge bases, ontologies, and in particular of RDFS. In this paper the authors turn these ideas into practice by...
Provided by Universidad de Chile
-
White Papers
Communication Complexity and Intrinsic Universality in Cellular Automata
September 17, 2010, 12:00am PDT
The notions of universality and completeness are central in the theories of computation and computational complexity. However, proving lower bounds and necessary conditions remains hard in most of...
Provided by Universidad de Chile
-
White Papers
Revisiting the Rice Theorem of Cellular Automata
February 24, 2011, 12:00am PST
A cellular automaton is a parallel synchronous computing model, which consists in a juxtaposition of finite automata whose state evolves according to that of their neighbors. It induces a...
Provided by Universidad de Chile
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