Ameya N. Deoras

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Sequencing of multiple related species followed by comparative genomics analysis constitutes a powerful approach for the systematic understanding of any genome. Here, we use the genomes of 12 Drosophila species for the de novo discovery of functional elements in the fly. Each type of functional element shows characteristic patterns of change, or(More)
Comparative genomics of multiple related species is a powerful methodology for the discovery of functional genomic elements, and its power should increase with the number of species compared. Here, we use 12 Drosophila genomes to study the power of comparative genomics metrics to distinguish between protein-coding and non-coding regions. First, we study the(More)
This paper addresses the novel problem of recognizing digits spoken simultaneously by two different talkers. A factorial hidden Markov model architecture is proposed to accurately model the simultaneous utterance of two digits. Nadas' (1999) MIXMAX approximation is extended to a mixture of Gaussians observation PDF which enables the implementation of the(More)
This paper presents a novel solution to the problem of isolated digit recognition in background music. A Factorial Hidden Markov Model (FHMM) architecture is proposed to accurately model the simultaneous occurrence of two independent processes, such as an utterance of a digit and an excerpt of music. The FHMM is implemented with its equivalent HMM by(More)
This paper presents a novel solution to the problem of isolated digit recognition in background music. A Factorial Hidden Markov Model (FHMM) architecture is proposed to accurately model the simultaneous occurrence of two independent processes, such as an utterance of a digit and an excerpt of music. The FHMM is implemented with its equivalent HMM by(More)
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