Ara es mostren els items 56-75 de 128

    • Feature decorrelation methods in speech recognition. A comparative study 

      Batlle Mont, Eloi; Nadeu Camprubí, Climent; Rodríguez Fonollosa, José Adrián (International Speech Communication Association (ISCA), 1998)
      Text en actes de congrés
      Accés obert
      In this paper we study various decorrelation methods for the features used in speech recognition and we compare the performance of each one by running several tests with a speech database. First of all we study the ...
    • Fir system identification using a linear combination of cumulants 

      Rodríguez Fonollosa, José Adrián; Vidal Manzano, José; Moreno Bilbao, M. Asunción (. IEEE INT. CONF. ON ACOUSTICS, SPEECH & SIGNAL PROC, 1992)
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      A general linear approach to identifying the parameters of a moving average (MA) model from the statistics of the output is developed. It is shown that, under some constraints, the impulse response of the system can be ...
    • First experiments on an HMM based double layer framework for automatic continuous speech recognition 

      Nogueiras Rodríguez, Albino; Casar López, Marta; Rodríguez Fonollosa, José Adrián; Caballero Galeote, Mónica (2006)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The usual approach to automatic continuous speech recognition is what can be called the acoustic-phonetic modelling approach. In this approach, voice is considered to hold two different kinds of information acoustic and ...
    • From bilingual to multilingual neural machine translation by incremental training 

      Escolano Peinado, Carlos; Ruiz Costa-Jussà, Marta; Rodríguez Fonollosa, José Adrián (Association for Computational Linguistics, 2019)
      Comunicació de congrés
      Accés obert
      Multilingual Neural Machine Translation approaches are based on the use of task specific models and the addition of one more language can only be done by retraining the whole system. In this work, we propose a new training ...
    • From bilingual to multilingual neural-based machine translation by incremental training 

      Escolano Peinado, Carlos; Ruiz Costa-Jussà, Marta; Rodríguez Fonollosa, José Adrián (2020-08-02)
      Article
      Accés obert
      A common intermediate language representation in neural machine translation can be used to extend bilingual systems by incremental training. We propose a new architecture based on introducing an interlingual loss as an ...
    • Hybrid machine translation: integration of linguistics and statistics : editorial 

      Rodríguez Fonollosa, José Adrián; Ruiz Costa-Jussà, Marta (Elsevier, 2015-07)
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      Accés obert
    • Identificaión ciega adptativa basada en el algoritmo de Baum-Welch 

      Rodríguez Fonollosa, José Adrián; Vidal, Josep (1994)
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    • Implementación sobre TMS320C31 del codificador de voz "Half rate" descrito en la recomendación GSM 6.20 

      Antón Haro, Carles; González, Jaime; Rodríguez Fonollosa, José Adrián (1997)
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    • Improved convergence of gradient algorithms for adaptive IIR filters 

      Rodríguez Fonollosa, José Adrián; Masgrau Gómez, Enrique José (Institute of Electrical and Electronics Engineers (IEEE), 1989)
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      The introduction of a simple correction term in gradient algorithms for adaptive IIR filtering is shown to improve their convergence and robustness. The error surface, i.e. the mean-squared value of the output error as a ...
    • Impulse response recovery of linear systems through weighted cumulant slice 

      Vidal Manzano, José; Rodríguez Fonollosa, José Adrián (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1996-10-01)
      Article
      Accés obert
      Identifiability of the so-called ω-slice algorithm is proven for ARMA linear systems. Although proofs were developed in the past for the simpler cases of MA and AR models, they were not extendible to general exponential ...
    • Including Zeros in the Backward Adaptive Predictor of AVPC Coders 

      Masgrau Gómez, Enrique José; Rodríguez Fonollosa, José Adrián (1989)
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      The inclusion of a pole-zero vector predictor in the backward loop of an AVPC coder[1] is approached . We hope to reach the same profit shown by the pole-zero predictor in the ADPCM-CCITT standard. By using a VLMS transversal ...
    • La tecnologia de la parla en català: avenços i reptes 

      Rodríguez Fonollosa, José Adrián (2010-07)
      Article
      Accés obert
      L’article brinda un panorama sumari però exhaustiu de la situació de les tecnologies de la parla en català. Una primera part introductòria dóna pas a una relació d’aplicacions i recursos. Finalment, s’aborda el projecte ...
    • Language modelling for speaker diarization in telephonic interviews 

      India Massana, Miquel Àngel; Hernando Pericás, Francisco Javier; Rodríguez Fonollosa, José Adrián (Elsevier, 2023-03)
      Article
      Accés obert
      The aim of this paper is to investigate the benefit of combining both language and acoustic modelling for speaker diarization. Although conventional systems only use acoustic features, in some scenarios linguistic data ...
    • Latest trends in hybrid machine translation and its applications 

      Rodríguez Fonollosa, José Adrián; Ruiz Costa-Jussà, Marta (Elsevier, 2015-07)
      Article
      Accés obert
      This survey on hybrid machine translation (MT) is motivated by the fact that hybridization techniques have become popular as they attempt to combine the best characteristics of highly advanced pure rule or corpus-based MT ...
    • Linguistic knowledge-based vocabularies for Neural Machine Translation 

      Casas Manzanares, Noé; Ruiz Costa-Jussà, Marta; Rodríguez Fonollosa, José Adrián; Alonso, Juan; Fanlo, Ramon (Cambridge University Press, 2020)
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      Accés obert
      Neural Networks applied to Machine Translation need a finite vocabulary to express textual information as a sequence of discrete tokens. The currently dominant subword vocabularies exploit statistically-discovered common ...
    • Linguistic-based evaluation criteria to identify statistical machine translation errors 

      Farrús Cabeceran, Mireia; Ruiz Costa-Jussà, Marta; Mariño Acebal, José Bernardo; Rodríguez Fonollosa, José Adrián (2010-05)
      Comunicació de congrés
      Accés obert
      Machine translation evaluation methods are highly necessary in order to analyze the performance of translation systems. Up to now, the most traditional methods are the use of automatic measures such as BLEU or the ...
    • Low delay phone recognition 

      Rodríguez Fonollosa, José Adrián; Mariño Acebal, José Bernardo (1998)
      Text en actes de congrés
      Accés obert
    • LSTM neural network-based speaker segmentation using acoustic and language modelling 

      India Massana, Miquel Àngel; Rodríguez Fonollosa, José Adrián; Hernando Pericás, Francisco Javier (International Speech Communication Association (ISCA), 2017)
      Comunicació de congrés
      Accés obert
      This paper presents a new speaker change detection system based on Long Short-Term Memory (LSTM) neural networks using acoustic data and linguistic content. Language modelling is combined with two different ...
    • Mail Access Plus. Sistema de Mensajería Unificada 

      Rodríguez Fonollosa, José Adrián; Guillermo, Vila; David, Font (Universidad de Zaragoza. URSI, 2000)
      Text en actes de congrés
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      This paper describes an unified messaging system which joins voice mail, fax and e-mail access. Its architecture consists in a group of independent servers, each offering an interface between the unified mailbox and an ...
    • Measuring acoustic reduction in feature space 

      Rodríguez Fonollosa, José Adrián; Schulz, Henrik (2012)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Modelling varying speaking style remains a challenge to sta te of the art speech recognition and synthesis systems. Vowel a nd consonant reduction have been identified as correlative to speaking st yle variation, but ...