Semantic speech recognition in the Basque context Part I: cross-lingual approaches

This work, divided into Part I and II, describes the development of GorUP a Semantic Speech Recognition System in the Basque context. Part I analyses crosslingual approaches oriented to under-resourced languages and Part II the development of the Language Identification system. During the development, data optimization methods and Soft Computing methodologies oriented to complex environment are used in order to overcome the lack of resources. Moreover, in this context three languages coexist: French, Spanish and Basque. Indeed our main goal is the development of robust Automatic Speech Recognition (ASR) systems for Basque, but all language variability has to be analyzed. In this regard, Basque speakers mix during the speech not only sounds but also words of the three languages which results in a strong presence of cross-lingual elements. Besides, Basque is an agglutinative language with a special morpho-syntactic structure inside the words that may lead N. Barroso · O. Barroso Irunweb Enterprise, Auzolan 2B – 2, Irun, 20303, Basque Country, Spain N. Barroso e-mail: [email protected] O. Barroso e-mail: [email protected] K. López de Ipiña ( ) · A. Ezeiza · C. Hernández · M. Graña Grupo de Inteligencia Computacional, University of the Basque Country UPV/EHU, Plaza de Europa 1, 20008 Donostia, Spain e-mail: [email protected] A. Ezeiza e-mail: [email protected] C. Hernández e-mail: [email protected] M. Graña e-mail: [email protected] to intractable vocabularies. Nowadays, our work is oriented to Information Retrieval and mainly to small internet massmedia. In these cases the available resources for Basque in general, and for this task in particular, are very few and complex to process because of the noisy environment. Thus, the methods employed in this development (ontology-based approach or cross-lingual methodologies oriented to profit from more powerful languages) could suit the requirements of many under-resourced languages.