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charla de vacante de excelencia: “Satisfiability of XPath”
(2012-09-14)


Charlista: 
Diego Figueira, University of Edinburgh
Fecha: 
26 Septiembre, 2012 - 14:00
Sala: 
Auditorio DCC, tercer piso
Organización: 
DCC

 

Abstract:

 

XPath is a node selecting language for XML documents. Although its satisfiability problem is in general undecidable, there are several syntactic restrictions that make the problem decidable. I will present a survey on the existing results on the satisfiability problem for fragments of XPath. I will also mention some open problems and conjectures.




La Web: La sabiduría de la gente y la cola larga
(2012-09-13)


Charlista: 
Ricardo Baeza Yates
Fecha: 
26 Septiembre, 2012 - 12:00
Sala: 
Auditorio DCC, tercer piso
Organización: 
DCC
Bio: 

 

Ricardo Baeza-Yates is VP of Yahoo! Research for Europe, Middle East and Latin America, leading the labs at Barcelona, Spain and Santiago, Chile, as well as supervising the newer lab in Haifa, Israel. Until 2005 he was the director of the Center for Web Research at the Department of Computer Science of the Engineering School of the University of Chile; and ICREA Professor at the Department of Technology of the University Pompeu Fabra in Barcelona, Spain. He is co-author of the best-seller book Modern Information Retrieval, published in 1999 by Addison-Wesley with a second edition in 2011, as well as co-author of the 2nd edition of the Handbook of Algorithms and Data Structures, Addison-Wesley, 1991; and co-editor of Information Retrieval: Algorithms and Data Structures, Prentice-Hall, 1992, among more than 200 other publications. He hasreceived the Organization of American States award for young researchers in exact sciences (1993) and several national awards in Chile. In 2003 he was the first computer scientist to be elected to the Chilean Academy of Sciences. During 2007 he was awarded the Graham Medal for innovation in computing, given by the University of Waterloo to distinguished ex-alumni. In 2009 he was awarded the Latin American distinction for contributions to CS in the region and became an ACM Fellow, followed in 2011 by an IEEE Fellow.

 

 

Abstract:

 

The Web continues to grow and evolve very fast, changing our daily lives. This activity represents the collaborative work of the millions of institutions and people that contribute content to the Web as well as more than one billion people that use it. In this ocean of hyperlinked data there is explicit and implicit information and knowledge. But how is the Web? Web data mining is the main task to answer this question.

 




Charla: Human-Centered Evaluation of Software Artefacts in Computer Science: Introduction, State-of-the-Art, and Perspectives
(2012-09-12)


Charlista: 
Dr. Stefan Hanenberg, University of Duisburg-Essen, Germany
Fecha: 
14 Septiembre, 2012 - 14:30
Sala: 
Auditorio DCC, tercer piso
Organización: 
DCC

Abstract:

 

This talk gives an introduction to the process of human-centered studies of constructs in computer science (with a focus on software artifacts). It motivates the need for such studies, gives an overview of required techniques, illustrates some pitfalls, and gives an overview of perspectives for these studies.




Seminario ACGO: Secure Two-Party Computation in Sublinear (Amortized) Time
(2012-08-27)


Charlista: 
Fernando Krell, Columbia U.
Fecha: 
29 Agosto, 2012 - 14:30
Sala: 
Auditorio DCC, Tercer Piso
Organización: 
DCC

Abstract:

Traditional approaches to generic secure computation begin by representing the function F being computed as a circuit. If F depends on each of its input bits, this implies a protocol with complexity at least linear in the input size. In fact, linear running time is inherent for non-trivial functions since each party must ``touch'' every bit of their input lest information about the other party's input be leaked. This seems to rule out many applications of secure computation (e.g., database search) in scenarios where inputs are huge.




Charla: "La era de la impugnación"
(2012-08-22)


Charlista: 
Alberto Mayol, sociólogo y académico FACSO Universidad de Chile
Fecha: 
29 Agosto, 2012 - 12:30
Sala: 
Auditorio DCC, tercer piso
Bio: 

Alberto Mayol es sociólogo y académico de la Facultad de Ciencias Sociales de la Universidad de Chile; investigador del Centro de Investigación en Estructura Social y autor del libro  “No al Lucro. De la crisis del modelo a la nueva era política”.    
 




Charla: Los sistemas de tiempo real en aplicaciones embebidas y las redes de datos
(2012-08-07)


Charlista: 
Prof. Rodrigo Santos, Universidad Nacional del Sur, Argentina.
Fecha: 
9 Agosto, 2012 - 15:30
Sala: 
Auditorio DCC, tercer piso.
Organización: 
DCC

Resumen:

En la presentación se introducen los conceptos básicos de los sistemas de tiempo real y cómo estos se pueden aplicar para el análisis y diseño de aplicaciones y redes de comunicaciones. Se analiza con especial detenimiento a las redes oportunistas y se trazan las líneas principales de trabajo en el área del Laboratorio de Sistemas Digitales de la Universidad Nacional del Sur, Argentina.

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Comunicaciones DCC




Charla: SPARQLing RDF: Publicación, Intercambio y Consumo de "Big Semantic Data"
(2012-07-31)


Charlista: 
Charlista: Miguel Martínez-Prieto, Universidad de Valladolid
Fecha: 
1 Agosto, 2012 - 16:00
Sala: 
Auditorio DCC, tercer piso.

 

La charla tratará sobre el problema de cómo resolver el manejo de grandes volúmenes de datos semánticos, particularmente su publicación, intercambio y consumo. Se presentará una propuesta basada en HDT, una compactificación para grandes volúmenes de datos RDF, y los desafíos que involucra.

 

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Comunicaciones DCC




Panel "Cloud Computing en Chile: seguridad y aspectos legales en la Nube"
(2012-07-06)


Fecha: 
13 Julio, 2012 - 12:00
Sala: 
Auditorio DCC, tercer piso.

 

El Departamento de Ciencias de la Computación de la Universidad de Chile,  su comunidad de Ex Alumnos con el apoyo de INTEL , invitan a participar en el segundo panel de discusión

 

Cloud Computing en Chile: seguridad y aspectos legales en la Nube




Charla "Imagen y Dibujo como Lenguaje del Conocimiento (hacia un curso de visualización)"
(2012-06-29)


Charlista: 
David Cofré, artista plástico.
Fecha: 
4 Julio, 2012 - 14:00
Sala: 
Auditorio DCC, tercer piso.



Charla "Enseñar es aprender y aprender es descubrir"
(2012-06-21)


Charlista: 
Jérémy Barbay, académico DCC.
Fecha: 
27 Junio, 2012 - 16:00
Sala: 
Auditorio DCC, tercer piso.
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