S
Subhro Das
Researcher at IBM
Publications - 69
Citations - 1275
Subhro Das is an academic researcher from IBM. The author has contributed to research in topics: Computer science & Kalman filter. The author has an hindex of 15, co-authored 52 publications receiving 1033 citations. Previous affiliations of Subhro Das include Bosch & Carnegie Mellon University.
Papers
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Proceedings ArticleDOI
Large vocabulary natural language continuous speech recognition
Lalit R. Bahl,Raimo Bakis,Jerome R. Bellegarda,Peter Fitzhugh Brown,David Burshtein,Subhro Das,P.V. de Souza,Ponani S. Gopalakrishnan,Frederick Jelinek,Dimitri Kanevsky,Robert Leroy Mercer,A. Nadas,David Nahamoo,Michael Picheny +13 more
TL;DR: A description is presented of the authors' current research on automatic speech recognition of continuously read sentences from a naturally-occurring corpus: office correspondence, which combines features from their current isolated-word recognition system and from their previously developed continuous-speech recognition system.
Journal ArticleDOI
Distributed Kalman Filtering With Dynamic Observations Consensus
Subhro Das,Jose M. F. Moura +1 more
TL;DR: This paper proposes a consensus+innovations distributed estimator, termed Distributed Information Kalman Filter, and proves under what conditions this estimator is asymptotically unbiased with bounded mean-squared error, smaller than for other alternative distributed estimators.
Journal ArticleDOI
Consensus+Innovations Distributed Kalman Filter With Optimized Gains
Subhro Das,Jose M. F. Moura +1 more
TL;DR: This paper develops a Kalman filter type consensus + innovations distributed linear estimator of the dynamic field termed as Consensus+Innovations Kalman Filter and proves that the mean-squared error of the estimator asymptotically converges if the degree of instability of the field dynamics is within a prespecified threshold defined as tracking capacity of the estimation.
Proceedings ArticleDOI
Experiments with the Tangora 20,000 word speech recognizer
Amir Averbuch,Lalit R. Bahl,Raimo Bakis,Peter Fitzhugh Brown,G. Daggett,Subhro Das,K. Davies,S.V. De Gennaro,P.V. de Souza,Edward A. Epstein,D. Fraleigh,Frederick Jelinek,Burn L. Lewis,Robert Leroy Mercer,J. Moorhead,A. Nadas,David Nahamoo,Michael Picheny,G. Shichman,P. Spinelli,D. Van Compernolle,H. Wilkens +21 more
TL;DR: The implementation, user interface, and comparative performance of the recognizer is described, which supports spelling and interactive personalization to augment the vocabularies.
Proceedings ArticleDOI
Improvements in children's speech recognition performance
Subhro Das,D. Nix,M. Picheny +2 more
TL;DR: Comparative studies demonstrating the performance gain realized by adopting to children's acoustic and language model data to construct a children's speech recognition system are described.