GTTS Systems for the SWS Task at MediaEval 2013
Luis Javier Rodríguez-Fuentes, Amparo Varona, Mikel Peñagarikano, Germán Bordel, Mireia Díez · 2013
This paper briey describes the systems presented by the Software Technologies Working Group (http://gtts.ehu.es, GTTS) of the University of the Basque Country (UPV/EHU) to the Spoken Web Search (SWS) task at MediaEval 2013. GTTS systems consist of four main modules: (1) feature extraction; (2) speech activity detection; (3) DTW-based query matching; and (4) score calibration and fusion. The most remarkable contributions are the use of phone loglikelihood ratio features, the normalization of the DTW distance matrix and the calibration/fusion approach (which is imported from language/speaker verication).