Welcome

First some pictures of my beautiful country

About

My name is Martín Ugarte. Among other things, I'm a human being, a teacher, a pirate, a researcher and a web developer; not necessarily in that order. I currently work as a postdoc researcher in the WIT Lab of the CoDE department at ULB. I recently finished my PhD thesis which was supervised by professor Marcelo Arenas and was about querying the semantic Web for optional information. You can find me most of the time at the Solbosch Campus; feel free to send an email and drop by.

Work

Journal Papers

Discovering XSD Keys from XML Data. [pdf]
Marcelo Arenas, Jonny Daenen, Frank Neven, Martín Ugarte, Jan Van Den Bussche and Stijn Vansummeren ACM Transactions on Database Systems 39, 4, Article 28 (December 2014)

Conference Papers

Foundations of JSON Schema [pdf]
Felipe Pezoa, Juan L. Reutter, Fernando Suarez, Martín Ugarte and Domagoj Vrgoc In Proceedings of the 25rd International World Wide Web Conference (WWW 2016)
Designing a Query Language for RDF: Marrying Open and Closed Worlds [pdf]
Marcelo Arenas and Martín Ugarte In Proceedings of the 35rd Principles of Database Systems symposium series (PODS 2016)
CONSTRUCT Queries in SPARQL. [pdf]
Egor V. Kostylev, Juan L. Reutter and Martín Ugarte In Proceedings of the 18th International Conference on Database Theory (ICDT 2015).
Discovering XSD Keys from XML Data. [pdf]
Marcelo Arenas, Jonny Daenen, Frank Neven, Martín Ugarte, Jan Van Den Bussche and Stijn Vansummeren In Proceedings of 2013 SIGMOD International Conference on Management of Data (SIGMOD 2013)

Workshop Papers

A preliminary investigation into SPARQL query complexity and federation in Bio2RDF.
Marcelo Arenas, Carlos Buil-Aranda, Michel Dumontier and Martín Ugarte In the Proceedings of the 9th Alberto Mendelzon Workshop on Foundations of Data Management (AMW 2015)
Satisfiability of JSON Schema and Instance Validation. [pdf]
Juan L. Reutter, Martín Ugarte and Domagoj Vrgoc Presented in the 9th Alberto Mendelzon Workshop on Foundations of Data Management (AMW 2015).
Towards a Positive Query Language for RDF [pdf]
Marcelo Arenas and Martín Ugarte Presented in the 8th Alberto Mendelzon Workshop on Foundations of Data Management (AMW 2014).

PhD Thesis

Building a Query Language for the Web of Data: Efficiency in an Open World [pdf]
Martín Ugarte Advisor: Marcelo Arenas. Ph.D. Thesis, Escuela de Ingeniería, PUC - Chile

Turing Machine Simulator
With José Antonio Matte we developed a platform for programming, compiling, running, storing and sharing Turing machines. Feel free to use it!

Resultado Exacto
With B. Assael and R. Herrera we created a web app for playing to predict football scores with friends. It has about 30 leagues to play and is free.

I'll soon publish my lectures on Python programming and Logics for Computer Science. Meanwhile you can send me a message and I'll gladly share them.

Contact

© Copyleft 2015 Martin Ugarte. Very few rights reserved.