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@TECHREPORT{Rasipuram_Idiap-RR-02-2011,
         author = {Rasipuram, Ramya and Magimai.-Doss, Mathew},
       keywords = {articulatory features, Automatic Speech Recognition, Kullback-Leibler divergence based hidden Markov model, multilayer perceptron, phonemes, posterior probabilities},
       projects = {Idiap},
          month = {2},
          title = {Integrating Articulatory Features using Kullback-Leibler Divergence based Acoustic Model for Phoneme Recognition},
           type = {Idiap-RR},
         number = {Idiap-RR-02-2011},
           year = {2011},
    institution = {Idiap},
       abstract = {In this paper, we propose a novel framework to integrate articulatory features (AFs) into HMM- based ASR system. This is achieved by using posterior probabilities of different AFs (estimated by multilayer perceptrons) directly as observation features in Kullback-Leibler divergence based HMM (KL-HMM) system. On the TIMIT phoneme recognition task, the proposed framework yields a phoneme recognition accuracy of 72.4\% which is comparable
to KL-HMM system using posterior probabilities of phonemes as features (72.7\%). Furthermore, a best performance of 73.5\% phoneme recognition accuracy is achieved by jointly modelling AF probabilities and phoneme probabilities as features. This shows the efficacy and flexibility of the proposed approach.},
            pdf = {https://publications.idiap.ch/attachments/reports/2010/Rasipuram_Idiap-RR-02-2011.pdf}
}