IXA group


PhD Thesis: Computational Model for Semantic Textual Similarity (A. Gonzalez, 2017/07/07)

Title: Computational Model for Semantic Textual Similarity
Author: Aitor Gonzalez-Agirre
Supervisors: German Rigau i Claramunt  / Eneko Agirre Bengoa (Ixa Group)
Date: July 7, 2017, Friday
Time: 11:00
Where:  Faculty of Informatics, Ada Lovelace Room (UPV/EHU)


The goal is to advance on computational models of meaning and their evaluation. We define two tasks: Semantic Textual Similarity (STS) and […]

Ninth Workshop on Syntax, Semantics and Structure in Statistical Translation (SSST-9)

Eneko AGIRRE and Nora ARANBERRI, Ixa Group from University of the Basque Country,  together with Dekai Wu, Hong Kong University of Science and Technology (HKUST) and Marine Carpuat, National Research Council (NRC) Canada, are the organizers of the SSST-9 – ”Ninth Workshop on Syntax, Semantics and Structure in Statistical Translation” that takes place in Denver, Colorado, USA, […]

The Basque WordNet semantic dictionary is a "public resource" now

Machines need computing tools that are more powerful than conventional dictionaries for tasks like information extraction, disambiguation of word meanings, etc. This is in fact the function of the Euskal WordNet application —developed by the IXA Group (UPV/EHU)— which can already be consulted and downloaded free of charge.

This is the first Lexical Knowledge Base (LKB) […]

Koldo Mitxelena award for PhD theses to Arantxa Otegi

Our colleague Arantxa Otegi won last Janaury the III. Koldo MItxelena Award for PhD Theses organized by Euskaltzaindia (the Academy of Basque Language) and the University of the Basque Country.


Congratulations to her supervisors (Xabier Arregi and Eneko Agirre).

The title of this thesis is ‘Expansion for information retrieval: contribution of word sense disambiguation and […]

Talk. Martha Palmer: Beyond Shallow Semantics (2012-10-08)

Speaker:  Martha Palmer.  Department of Linguistics, University of Colorado (AEB)

Title: Beyond Shallow Semantics.
Date: October 8, 2012
Time: 16:00-19:00
Where: Computer Science Faculty, Room 3.2



Shallow semantic analyzers, such as semantic role labelers and sense taggers, are increasing in accuracy and becoming commonplace. However, they only provide limited and local representations of words and individual predicate-argument structures. This talk […]

*SEM conference: Lexical and computational semantics

ACL special interest groups SIGLEX and SIGSEM are organising a joint conference on Lexical and computational semantics: *SEM

Eneko Agirre from the Ixa Group is the general chair in this conference.

The main goal of *SEM is to provide a stable fo of rum for the growing number of NLP researchers working on different aspects of semantic processing, which […]

Talk. Daniele Pighin. Semantic Structures in Translation Ranking (2011/05/31)

Speaker: Daniele Pighin
Technical University of Catalonia, UPC
Date: May 31, 2011
Time: 11:30
Where: Computer Science Faculty, Room 3.2

Automatic Projection of Semantic Structures:
an Application to Pairwise Translation Ranking

The […]

Invited talk: 'Computational Semantics and Pragmatics' (Rodolfo DelMonte, 2011/01/17,18

Speaker: Rodolfo Delmonte, (Università Ca’ Foscari, Venice, Italy).
Date: January 17 and 18, 2011
Time: 16:00 – 19:30
Where: Computer Science Faculty

These two sessions cover some of the most important aspects of Computational Semantics and Pragmatics including:
* Lexical Representations and Argument Structure
* Parsing with constituency or dependency structure
* Co-reference resolution
* Underspecified arguments
* Argumentative structure, subjectivity, […]