Welcome

First some pictures of my beautiful country

About

My name is Martín Ugarte, but I guess you got that from the URL. Among other things, I'm a human being, a researcher, a pirate, and a web developer; not necessarily in that order. I currently work as a postdoc researcher in the CoDE department of ULB with professor Stijn Vansummeren. During my PhD at PUC Chile I worked on logics and query languages; my current work touches different aspects of Data Management. I'm also interested in cryptography, with a special focus on the privacy of cryptocurrencies. You can find me most of the time in the Solbosch Campus; feel free to contact me and drop by.

Work

Journal Papers

Designing a Query Language for RDF: Marrying Open and Closed Worlds
Marcelo Arenas and Martín Ugarte To appera in ACM Transactions on Database Systems
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

The Dynamic Yannakakis Algorithm: Compact and Efficient Query Processing Under Updates [pdf]
Muhammad Idris, Martín Ugarte and Stijn Vansummeren In Proceedings of the 2017 ACM SIGMOD international conference on Management of data (SIGMOD 2017). To appear.
Foundations of JSON Schema [pdf]
Felipe Pezoa, Juan L. Reutter, Fernando Suarez, Martín Ugarte and Domagoj Vrgoc In Proceedings of the 25th 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 35th 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

Querying the Deep Web: Back to the Foundations [pdf]
Andrea Calí, Davide Martinenghi, Igor Razgon and Martín Ugarte In proceedings of the 11th Alberto Mendelzon Workshop on Foundations of Data Management (AMW 2017)
Foundations of Accessing the Deep Web with keywords [pdf]
Andrea Calí and Martín Ugarte Proceedings of the 3rd International KEYSTONE Conference on Semantic Keyword-based Search on Structured Data Sources (IKC 2017)
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 2017 Martin Ugarte. Very few rights reserved.