Browsing by Author "Ghahabi Esfahani, Omid"
Ghahabi Esfahani, Omid; Hernando Pericás, Francisco Javier (Institute of Electrical and Electronics Engineers (IEEE), 2014)
Restricted access - publisher's policyThe use of Deep Belief Networks (DBNs) is proposed in this paper to model discriminatively target and impostor i-vectors in a speaker verification task. The authors propose to adapt the network parameters of each speaker ...
Ghahabi Esfahani, Omid (Universitat Politècnica de Catalunya, 2018-05-29)
Open AccessOver the last few years, i-vectors have been the state-of-the-art technique in speaker and language recognition. Recent advances in Deep Learning (DL) technology have improved the quality of i-vectors but the DL techniques ...
Ghahabi Esfahani, Omid; Bonafonte Cávez, Antonio; Hernando Pericás, Francisco Javier; Moreno Bilbao, M. Asunción (International Speech Communication Association (ISCA), 2016)
Restricted access - publisher's policyThis paper is focused on the application of the Language Identification (LID) technology for intelligent vehicles. We cope with short sentences or words spoken in moving cars in four languages: English, Spanish, German, ...
Ghahabi Esfahani, Omid; Hernando Pericás, Francisco Javier (2014-11-19)
Restricted access - publisher's policyAn effective global impostor selection method is proposed in this paper for discriminative Deep Belief Networks (DBN) in the context of a multi-session i-vector based speaker recognition. The proposed method is an ...
Ghahabi Esfahani, Omid; Hernando Pericás, Francisco Javier (2014)
Restricted access - publisher's policyIn this paper we propose an impostor selection method for a Deep Belief Network (DBN) based system which models i-vectors in a multi-session speaker verification task. In the proposed method, instead of choosing a ...
On the acoustic environment of a neonatal intensive care unit: initial description, and detection of equipment alarms Raboshchuk, Ganna; Nadeu Camprubí, Climent; Ghahabi Esfahani, Omid; Solvez, Sergi; Muñoz Mahamud, Blanca; Riverola de Veciana, Ana; Navarro Hervas, Santiago (International Speech Communication Association (ISCA), 2014)
Restricted access - publisher's policyThe acoustic environment of a typical neonatal intensive care unit (NICU) is very rich and may contain a large number of different sounds, which come either from the equipment or from the human activities taking place in ...