Center for Semantic Web Research

About

Since its creation, the Web has been a main object of research for information management, which has been primarily studied using classical paradigms. However, since the early 2000s, we are witnessing drastic changes in the area of Web data management. If we had to summarize them in one sentence, it would be: real distribution of big data.


In this new scenario, capturing the meaning of heterogeneous data and developing tools for its processing play a crucial role. The Semantic Web is an enormous initiative led by the World Wide Web Consortium whose main objective is to achieve these goals, thus transforming the current Web of documents into a Web of data, where human users and computer applications can take a better advantage of the massive amount of information stored on it. Some key steps have been made to achieve these goals. However, we are still far from having techniques that take full advantage of the semantics and the logic behind Web data, once its structure, scale and distribution –altogether– are considered as a full-fledged phenomenon.


The main goal of the Center for Semantic Web Research is to study how to effectively extract semantic data from the Web, and to develop the basic tools for such effective extraction. This is an initiative that brings together professors, researchers and students from Pontifical Catholic University of Chile, University of Chile and University of Talca, and which is funded by the Iniciativa Científica Milenio.

People

Marcelo Arenas

Marcelo Arenas

Director

Pablo  Barceló

Pablo Barceló

Deputy Director

Renzo Angles

Renzo Angles

Young researcher

Jorge Baier

Jorge Baier

Young Researcher

Carlos Buil-Aranda

Carlos Buil-Aranda

Young researcher

Benjamin Bustos

Benjamin Bustos

Young Researcher

Claudio Gutierrez

Claudio Gutierrez

Senior Researcher

Aidan Hogan

Aidan Hogan

Associate researcher

Jorge Pérez

Jorge Pérez

Associate researcher

Bárbara Poblete

Bárbara Poblete

Young researcher

Juan L. Reutter

Juan L. Reutter

Associate researcher

Cristian Riveros

Cristian Riveros

Young researcher

Domagoj Vrgoc

Domagoj Vrgoc

Postdoctoral researcher

Gabriel Diéguez

Gabriel Diéguez

Master's student

Jazmine Maldonado

Jazmine Maldonado

Undergraduate Student

Pablo Muñoz

Pablo Muñoz

PhD student

Vanessa Peña

Vanessa Peña

PHD Student

Mauricio Quezada

Mauricio Quezada

PHD Student

Miguel Romero

Miguel Romero

PhD student

Adrián Soto

Adrián Soto

Undegraduate student

Fernando Suárez

Fernando Suárez

Master's student

Olaf Hartig

Olaf Hartig

Postdoctoral research fellow at the Cheriton School of Computer Science at the University of Waterloo

Seminar

Publications

  • Sergio Abriola, Pablo Barcelo, Diego Figueira and Santiago Figueira. Bisimulations on data graphs. Accepted for publication in 15th International Conference on Principles of Knowledge Representation and Reasoning (KR 2016), 2016. [PDF]
  • Anthony Widjaja Lin and Pablo Barcelo. String solving with word equations and transducers: Towards a logic for analysing mutation XSS. In Proceedings of the 42nd Annual ACM SIGPLAN-SIGACT Symposium on Principles of Programming Languages (POPL 2015), pages 123-136, St. Petersburg, Florida, USA, 2016. [PDF]
  • Felipe Pezoa, Juan L. Reutter, Fernando Suárez, Martín Ugarte and Domagoj Vrgoc. Foundations of JSON Schema. In Proceedings of the 25th International Conference on World Wide Web Pages 263-273., 2016. [PDF]
  • Marcelo Arenas, Gabriel Diéguez and Jorge Pérez. Bidirectional Constraints for Exchanging Data: Beyond Monotone Queries. In Proceedings of the Twenty-Fourth International Joint Conference on Artificial Intelligence (IJCAI 2015), pages 2698-2705, Buenos Aires, Argentina, 2015. [PDF]
  • Pablo Barcelo and Gaelle Fontaine. On the data complexity of consistent query answering over graph databases. In Proceedings of the 18th International Conference on Database Theory (ICDT 2015), pages 380-397, Brussels, Belgium, 2015. [PDF]
  • Pablo Barcelo, Reinhard Pichler and Sebastian Skritek. Efficient Evaluation and Approximation of Well-designed Pattern Trees. In Proceedings 34th ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Database Systems (PODS 2015), pages 131-144, 2015, 2015. [PDF]
  • Aidan Hogan. Skolemising Blank Nodes while Preserving Isomorphism. 24th International World Wide Web Conference (WWW 2015), pages 430–440, Florence, Italy., 2015. [PDF]
  • Francisco J. Gutierrez and Barbara Poblete. Sentiment-based User Profiles in Microblogging Platforms. In Proceedings of the 26th ACM Conference on Hypertext and Social Media (HT'15), pages 23-32, Guzelyurt, TRNC, Cyprus, 2015. [PDF]
  • Filip Mazowiecki and Cristian Riveros. Maximal Partition Logic: Towards a Logical Characterization of Copyless Cost Register Automata. 24th EACSL Annual Conference on Computer Science Logic, Pages 144-159, CSL 2015, Berlin, Germany., 2015.
  • Muhammad Saleem, Muhammad Intizar Ali, Aidan Hogan, Qaiser Mehmood, Axel-Cyrille Ngonga Ngomo. The LSQ Dataset: Querying for Queries. In the Poster & Demo Proceedings of the 14th International Semantic Web Conference (ISWC 2015), Bethlehem, US, October 11–15, 2015. [PDF]
  • Aidan Hogan. Linked Data and the Semantic Web Standards. Chapter in 'Linked Data Management', Andreas Harth, Katja Hose, Ralf Schenkel (eds.), CRC Press, May, 2014. [PDF]
  • Benjamin Bustos and Aidan Hogan. IMGpedia: A Proposal to Enrich DBpedia with Image Meta-Data. 9th Alberto Mendelzon International Workshop on Foundations of Data Management, Lima, Peru, May 6–8, 2015. [PDF]
  • Afzal Godil, Helin Dutagaci, Benjamin Bustos, S. Choi, Suchuan Dong, Takahiko Furuya, H. Li, Norman Link, A. Moriyama, Rafael Meruane, Ryutarou Ohbuchi, Dietrich Paulus, Tobias Schreck, Viktor Seib, Ivan Sipiran, H. Yin, and C. Zhang. Range scans based 3D shape retrieval. In Proc. 8th Eurographics Workshop on 3D Object Retrieval (3DOR'15), pages 153-160. Eurographics Association, 2015., 2015.
  • Robert Gregor, Andreas Lamprecht, Ivan Sipiran, Tobias Schreck, and Benjamin Bustos. Empirical evaluation of dissimilarity measures for 3D object retrieval with application to multi-feature retrieval. In Proc. 13th International Workshop on Content-Based Multimedia Indexing (CBMI'15), pages 1-6. IEEE, 2015., 2015.
  • Daniel Hernández, Aidan Hogan and Markus Krötzsch. Reifying RDF: What Works Well With Wikidata?, International Workshop on Scalable Semantic Web Knowledge Base Systems (SSWS), Bethlehem, US, Oct 11, 2015. [PDF]
  • Jose Herrera, Denis Parra and Barbara Poblete. Retrieving Relevant Conversations for Q&A on Twitter. SIGIR 2015 International Workshop on Social Personalisation & Search. , 2015. [PDF]
  • Jazmine Maldonado, Vanessa Peña-Araya and Barbara Poblete. Spatio and Temporal Characterization of Chilean News Events in Social Media. SIGIR 2015 Workshop on Temporal, Social and Spatially-aware Information Access (TAIA'15), August 13, 2015, Santiago, Chile., 2015. [PDF]
  • Luca Matteis, Aidan Hogan and Roberto Navigli. Keyword-Based Navigation and Search over the Linked Data Web. Linked Data on the Web Workshop (LDOW 2015) at WWW 2015, Florence, Italy, May 19, 2015. [PDF]
  • Ivan Sipiran, Benjamin Bustos, Tobias Schreck, Alex M. Bronstein, Sungbin Choi, Long Lai, Haisheng Li, Roee Litman, and Li Sun. Scalability of non-rigid 3D shape retrieval. In Proc. 8th Eurographics Workshop on 3D Object Retrieval (3DOR'15), pages 121-128. Eurographics Association, 2015., 2015.
  • Marcelo Arenas, Gabriel Diéguez and Jorge Pérez. Expressiveness and Complexity of Bidirectional Constraints for Data Exchange. In Proceedings of the 8th Alberto Mendelzon Workshop on Foundations of Data Management (AMW 2014), Cartagena de Indias, Colombia, 2014. [PDF]
  • Marcelo Arenas, Georg Gottlob and Andreas Pieris. Expressive Languages for Querying the Semantic Web. In Proceedings of the 8th Alberto Mendelzon Workshop on Foundations of Data Management (AMW 2014), Cartagena de Indias, Colombia, 2014. [PDF]
  • Aidan Hogan. Reasoning Techniques for the Web of Data. Volume 19 of "Studies on the Semantic Web", IOS Press, pp. 1–330, ISBN:978-1-61499-382-7, May, 2014.

Awards

News

Outreach

Contact

Mailing address

Marcelo Arenas
Vicuna Mackenna 4860
Edificio San Agustin, 4to piso
Macul 7820436
Santiago
Chile