Haritz Salaberri


2015

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bRol: The Parser of Syntactic and Semantic Dependencies for Basque
Haritz Salaberri | Olatz Arregi | Beñat Zapirain
Proceedings of the International Conference Recent Advances in Natural Language Processing

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IXAGroupEHUDiac: A Multiple Approach System towards the Diachronic Evaluation of Texts
Haritz Salaberri | Iker Salaberri | Olatz Arregi | Beñat Zapirain
Proceedings of the 9th International Workshop on Semantic Evaluation (SemEval 2015)

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IXAGroupEHUSpaceEval: (X-Space) A WordNet-based approach towards the Automatic Recognition of Spatial Information following the ISO-Space Annotation Scheme
Haritz Salaberri | Olatz Arregi | Beñat Zapirain
Proceedings of the 9th International Workshop on Semantic Evaluation (SemEval 2015)

2014

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First approach toward Semantic Role Labeling for Basque
Haritz Salaberri | Olatz Arregi | Beñat Zapirain
Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14)

In this paper, we present the first Semantic Role Labeling system developed for Basque. The system is implemented using machine learning techniques and trained with the Reference Corpus for the Processing of Basque (EPEC). In our experiments the classifier that offers the best results is based on Support Vector Machines. Our system achieves 84.30 F1 score in identifying the PropBank semantic role for a given constituent and 82.90 F1 score in identifying the VerbNet role. Our study establishes a baseline for Basque SRL. Although there are no directly comparable systems for English we can state that the results we have achieved are quite good. In addition, we have performed a Leave-One-Out feature selection procedure in order to establish which features are the worthiest regarding argument classification. This will help smooth the way for future stages of Basque SRL and will help draw some of the guidelines of our research.

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Simple or Complex? Assessing the readability of Basque Texts
Itziar Gonzalez-Dios | María Jesús Aranzabe | Arantza Díaz de Ilarraza | Haritz Salaberri
Proceedings of COLING 2014, the 25th International Conference on Computational Linguistics: Technical Papers