Atsushi Nakamura

According to our database1, Atsushi Nakamura authored at least 141 papers between 1994 and 2021.

Collaborative distances:
  • Dijkstra number2 of four.
  • Erdős number3 of four.

Timeline

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On csauthors.net:

Bibliography

2021
4.2 A 12nm Autonomous-Driving Processor with 60.4TOPS, 13.8TOPS/W CNN Executed by Task-Separated ASIL D Control.
Proceedings of the IEEE International Solid-State Circuits Conference, 2021

2020
Estimating Modal Group Delay Characteristics of Few-Mode Fibres from Fibre Parameters.
Proceedings of the European Conference on Optical Communications, 2020

Wide-temperature-range 100-Gbaud Operation of a Lumped-electrode-type EA-DFB for an 800-Gb/s Optical Transceiver.
Proceedings of the European Conference on Optical Communications, 2020

2019
Potential Fault Detection in Optical Cables Using OTDR Operating in Two-Modes.
Proceedings of the 2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019

53-Gbaud PAM4 Differential Drive of a Conventional EA/DFB Toward Driver-Amplifier-Less Optical Transceivers.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2019

2018
Proactive Detection of Optical Cable Failure Caused by Water Freezing Using 1-μm-band Mode-Detection OTDR.
Proceedings of the Optical Fiber Communications Conference and Exposition, 2018

Uncooled Operation of 53-Gbaud PAM4 (106-Gb/s) EA/DFB Lasers with Extremely Low Drive Voltage with 0.9 Vpp.
Proceedings of the European Conference on Optical Communication, 2018

2017
Automatic spin measurements for pitched Baseballs via consumer-grade high-speed cameras.
Signal Image Video Process., 2017

2016
Estimating Speech Recognition Accuracy Based on Error Type Classification.
IEEE ACM Trans. Audio Speech Lang. Process., 2016

Differenced maximum mutual information criterion for robust unsupervised acoustic model adaptation.
Comput. Speech Lang., 2016

2015
Identification of loss factors by evaluating backscattered modal loss ratio obtained with 1-µm-band mode-detection OTDR.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

25.8 Gbps error free transmission over 10 km at wavelengths from 1271 to 1331nm by uncooled (25 to 85°C) directly modulated DFB lasers for 100G-CWDM4.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2015

2014
Structural Bayesian Linear Regression for Hidden Markov Models.
J. Signal Process. Syst., 2014

Guest Editorial: Machine Learning for Signal Processing.
J. Signal Process. Syst., 2014

Chip Level Simulation of Substrate Noise Coupling and Interference in RF ICs with CMOS Digital Noise Emulator.
IEICE Trans. Electron., 2014

Uncooled clear-eye-opening operation (25 to 95°C) of 25.8/28-Gbps 1.3-µm InGaAlAs-MQW directly modulated DFB lasers.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2014

Restructuring output layers of deep neural networks using minimum risk parameter clustering.
Proceedings of the INTERSPEECH 2014, 2014

Fast segment search for corpus-based speech enhancement based on speech recognition technology.
Proceedings of the IEEE International Conference on Acoustics, 2014

Real-time one-pass decoding with recurrent neural network language model for speech recognition.
Proceedings of the IEEE International Conference on Acoustics, 2014

Zero-resource spoken term detection using hierarchical graph-based similarity search.
Proceedings of the IEEE International Conference on Acoustics, 2014

Hyperspectroscopic imager for baby fibers.
Proceedings of the 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2014

Computer Ethics Video Clips for University Students in Japan from 2003 until 2013.
Proceedings of the IEEE 38th Annual Computer Software and Applications Conference, 2014

2013
Speech Recognition Algorithms Based on Weighted Finite-State Transducers
Synthesis Lectures on Speech and Audio Processing, Morgan & Claypool Publishers, ISBN: 9781608454747, 2013

Prior-shared feature and model space speaker adaptation by consistently employing map estimation.
Speech Commun., 2013

Cluster-based dynamic variance adaptation for interconnecting speech enhancement pre-processor and speech recognizer.
Comput. Speech Lang., 2013

Speech recognition in living rooms: Integrated speech enhancement and recognition system based on spatial, spectral and temporal modeling of sounds.
Comput. Speech Lang., 2013

Blocked Gibbs sampling based multi-scale mixture model for speaker clustering on noisy data.
Proceedings of the IEEE International Workshop on Machine Learning for Signal Processing, 2013

Unsupervised discriminative language modeling using error rate estimator.
Proceedings of the INTERSPEECH 2013, 2013

A method for structure estimation of weighted finite-state transducers and its application to grapheme-to-phoneme conversion.
Proceedings of the INTERSPEECH 2013, 2013

Is speech enhancement pre-processing still relevant when using deep neural networks for acoustic modeling?
Proceedings of the INTERSPEECH 2013, 2013

Discriminative recognition rate estimation for N-best list and its application to N-best rescoring.
Proceedings of the IEEE International Conference on Acoustics, 2013

Large vocabulary continuous speech recognition based on WFST structured classifiers and deep bottleneck features.
Proceedings of the IEEE International Conference on Acoustics, 2013

Feature space variational Bayesian linear regression and its combination with model space VBLR.
Proceedings of the IEEE International Conference on Acoustics, 2013

Unsupervised discriminative adaptation using differenced maximum mutual information based linear regression.
Proceedings of the IEEE International Conference on Acoustics, 2013

Graph index based query-by-example search on a large speech data set.
Proceedings of the IEEE International Conference on Acoustics, 2013

Tactile Vibration of Personal Digital Assistants for Conveying Feelings.
Proceedings of the Human Interface and the Management of Information. Information and Interaction for Health, Safety, Mobility and Complex Environments, 2013

Substrate noise reduction based on impedance balance using tunable resistances.
Proceedings of the 9th International Workshop on Electromagnetic Compatibility of Integrated Circuits, 2013

Measurements and simulation of substrate noise coupling in RF ICs with CMOS digital noise emulator.
Proceedings of the 9th International Workshop on Electromagnetic Compatibility of Integrated Circuits, 2013

2012
Statistical Voice Conversion Based on Noisy Channel Model.
IEEE Trans. Speech Audio Process., 2012

Round-Robin Duel Discriminative Language Models.
IEEE Trans. Speech Audio Process., 2012

Structural Classification Methods Based on Weighted Finite-State Transducers for Automatic Speech Recognition.
IEEE Trans. Speech Audio Process., 2012

Low-Latency Real-Time Meeting Recognition and Understanding Using Distant Microphones and Omni-Directional Camera.
IEEE Trans. Speech Audio Process., 2012

Joint estimation of confidence and error causes in speech recognition.
Speech Commun., 2012

Efficient training of discriminative language models by sample selection.
Speech Commun., 2012

Wide-Tuning-Wavelength-Range LGLC Laser with Low-Loss Dual-Core Spot Size Converter.
IEICE Trans. Electron., 2012

Model Shrinkage for Discriminative Language Models.
IEICE Trans. Inf. Syst., 2012

Recognition rate estimation based on word alignment network and discriminative error type classification.
Proceedings of the 2012 IEEE Spoken Language Technology Workshop (SLT), 2012

Dynamic variance adaptation using differenced maximum mutual information.
Proceedings of the 2012 Symposium on Machine Learning in Speech and Language Processing, 2012

Fully Bayesian speaker clustering based on hierarchically structured utterance-oriented Dirichlet process mixture model.
Proceedings of the INTERSPEECH 2012, 2012

Integrating Deep Neural Networks into Structural Classification Approach based on Weighted Finite-State Transducers.
Proceedings of the INTERSPEECH 2012, 2012

Speaker Adaptation Using Variational Bayesian Linear Regression in Normalized Feature Space.
Proceedings of the INTERSPEECH 2012, 2012

Bag Of ARCS: New representation of speech segment features based on finite state machines.
Proceedings of the 2012 IEEE International Conference on Acoustics, 2012

Error type classification and word accuracy estimation using alignment features from word confusion network.
Proceedings of the 2012 IEEE International Conference on Acoustics, 2012

Spoken document retrieval by discriminative modeling in a high dimensional feature space.
Proceedings of the 2012 IEEE International Conference on Acoustics, 2012

New analytical update rule for TDOA inference for underdetermined BSS in noisy environments.
Proceedings of the 2012 IEEE International Conference on Acoustics, 2012

Basis vector orthogonalization for an improved kernel gradient matching pursuit method.
Proceedings of the 2012 IEEE International Conference on Acoustics, 2012

Decoding network optimization using minimum transition error training.
Proceedings of the 2012 IEEE International Conference on Acoustics, 2012

Discriminative feature transforms using differenced maximum mutual information.
Proceedings of the 2012 IEEE International Conference on Acoustics, 2012

Melanoma screening system using hyperspectral imager attached to imaging fiberscope.
Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2012

New analytical calculation and estimation of TDOA for underdetermined BSS in noisy environments.
Proceedings of the Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, 2012

2011
Lattice gauge theory on a multi-core processor, Cell/B.E.
Proceedings of the International Conference on Computational Science, 2011

Efficient Combination of Likelihood Recycling and Batch Calculation for Fast Acoustic Likelihood Calculation.
IEICE Trans. Inf. Syst., 2011

Bayesian linear regression for Hidden Markov Model based on optimizing variational bounds.
Proceedings of the 2011 IEEE International Workshop on Machine Learning for Signal Processing, 2011

Preface.
Proceedings of the 2011 IEEE International Workshop on Machine Learning for Signal Processing, 2011

Model Adaptation for Automatic Speech Recognition Based on Multiple Time Scale Evolution.
Proceedings of the INTERSPEECH 2011, 2011

Gibbs sampling based Multi-scale Mixture Model for speaker clustering.
Proceedings of the IEEE International Conference on Acoustics, 2011

High accurate model-integration-based voice conversion using dynamic features and model structure optimization.
Proceedings of the IEEE International Conference on Acoustics, 2011

Machine and acoustical condition dependency analyses for fast acoustic likelihood calculation techniques.
Proceedings of the IEEE International Conference on Acoustics, 2011

Round-robin duel discriminative language models in one-pass decoding with on-the-fly error correction.
Proceedings of the IEEE International Conference on Acoustics, 2011

Subspace pursuit method for kernel-log-linear models.
Proceedings of the IEEE International Conference on Acoustics, 2011

2010
Predictor-Corrector Adaptation by Using Time Evolution System With Macroscopic Time Scale.
IEEE Trans. Speech Audio Process., 2010

A Sequential Pattern Classifier Based on Hidden Markov Kernel Machine and Its Application to Phoneme Classification.
IEEE J. Sel. Top. Signal Process., 2010

Online Unsupervised Classification With Model Comparison in the Variational Bayes Framework for Voice Activity Detection.
IEEE J. Sel. Top. Signal Process., 2010

Problem Solving Environment for Lattice QCD on Cell/B, E, .
J. Convergence Inf. Technol., 2010

An Approach for Practical Use of Common-Mode Noise Reduction Technique for In-Vehicle Electronic Equipment.
IEICE Trans. Commun., 2010

Improved Sequential Dependency Analysis Integrating Labeling-Based Sentence Boundary Detection.
IEICE Trans. Inf. Syst., 2010

Real-time meeting recognition and understanding using distant microphones and omni-directional camera.
Proceedings of the 2010 IEEE Spoken Language Technology Workshop, 2010

Cepstral smoothing of separated signals for underdetermined speech separation.
Proceedings of the International Symposium on Circuits and Systems (ISCAS 2010), May 30, 2010

Large vocabulary continuous speech recognition using WFST-based linear classifier for structured data.
Proceedings of the INTERSPEECH 2010, 2010

Probabilistic integration of joint density model and speaker model for voice conversion.
Proceedings of the INTERSPEECH 2010, 2010

A novel confidence measure based on marginalization of jointly estimated error cause probabilities.
Proceedings of the INTERSPEECH 2010, 2010

Round-robin discrimination model for reranking ASR hypotheses.
Proceedings of the INTERSPEECH 2010, 2010

A regularized discriminative training method of acoustic models derived by minimum relative entropy discrimination.
Proceedings of the INTERSPEECH 2010, 2010

Improvements of search error risk minimization in viterbi beam search for speech recognition.
Proceedings of the INTERSPEECH 2010, 2010

Music dereverberation using harmonic structure source model and Wiener filter.
Proceedings of the IEEE International Conference on Acoustics, 2010

Minimum Error Classification with geometric margin control.
Proceedings of the IEEE International Conference on Acoustics, 2010

A discriminative model for continuous speech recognition based on Weighted Finite State Transducers.
Proceedings of the IEEE International Conference on Acoustics, 2010

Discriminative confidence and error cause estimation for extended speech recognition function.
Proceedings of the IEEE International Conference on Acoustics, 2010

A comparative study on methods of Weighted language model training for reranking lvcsr N-best hypotheses.
Proceedings of the IEEE International Conference on Acoustics, 2010

Discriminative training based on an integrated view of MPE and MMI in margin and error space.
Proceedings of the IEEE International Conference on Acoustics, 2010

Search error risk minimization in Viterbi beam search for speech recognition.
Proceedings of the IEEE International Conference on Acoustics, 2010

Using online model comparison in the Variational Bayes framework for online unsupervised Voice Activity Detection.
Proceedings of the IEEE International Conference on Acoustics, 2010

SOC for car navigation system with a 55.3GOPS image recognition engine.
Proceedings of the 15th Asia South Pacific Design Automation Conference, 2010

2009
Simultaneous estimation of confidence and error cause in speech recognition using discriminative model.
Proceedings of the INTERSPEECH 2009, 2009

Margin-space integration of MPE loss via differencing of MMI functionals for generalized error-weighted discriminative training.
Proceedings of the INTERSPEECH 2009, 2009

On-line adaptation and Bayesian detection of environmental changes based on a macroscopic time evolution system.
Proceedings of the IEEE International Conference on Acoustics, 2009

Efficient combination of likelihood recycling and batch calculation based on conditional fast processing and acoustic back-off.
Proceedings of the IEEE International Conference on Acoustics, 2009

A unified view for discriminative objective functions based on negative exponential of difference measure between strings.
Proceedings of the IEEE International Conference on Acoustics, 2009

2008
Sequential dependency analysis for online spontaneous speech processing.
Speech Commun., 2008

Improving computer ethics video clips for higher education.
Proceedings of the 36th Annual ACM SIGUCCS Conference on User Services 2008, 2008

Flexible discriminative training based on equal error group scores obtained from an error-indexed forward-backward algorithm.
Proceedings of the INTERSPEECH 2008, 2008

A unified interpretation of adaptation approaches based on a macroscopic time evolution system and indirect/direct adaptation approaches.
Proceedings of the IEEE International Conference on Acoustics, 2008

Specify-explore-refine (SER): from specification to implementation.
Proceedings of the 45th Design Automation Conference, 2008

2007
Discriminative Training for Large-Vocabulary Speech Recognition Using Minimum Classification Error.
IEEE Trans. Speech Audio Process., 2007

Efficient WFST-Based One-Pass Decoding With On-The-Fly Hypothesis Rescoring in Extremely Large Vocabulary Continuous Speech Recognition.
IEEE Trans. Speech Audio Process., 2007

An approach to efficient generation of high-accuracy and compact error-corrective models for speech recognition.
Proceedings of the INTERSPEECH 2007, 2007

String and lattice based discriminative training for the corpus of spontaneous Japanese lecture transcription task.
Proceedings of the INTERSPEECH 2007, 2007

The world of mushrooms: human-computer interaction prototype systems for ambient intelligence.
Proceedings of the 9th International Conference on Multimodal Interfaces, 2007

Incremental Adaptation Based on a Macroscopic Time Evolution System.
Proceedings of the IEEE International Conference on Acoustics, 2007

2006
Dynamic Assignment of Gaussian Components in Modelling Speech Spectra.
J. VLSI Signal Process., 2006

Automatic determination of acoustic model topology using variational Bayesian estimation and clustering for large vocabulary continuous speech recognition.
IEEE Trans. Speech Audio Process., 2006

Speech Recognition Based on Student's t-Distribution Derived from Total Bayesian Framework.
IEICE Trans. Inf. Syst., 2006

Production-Oriented Models for Speech Recognition.
IEICE Trans. Inf. Syst., 2006

Advanced computational models and learning theories for spoken language processing.
IEEE Comput. Intell. Mag., 2006

Sentence boundary detection using sequential dependency analysis combined with CRF-based chunking.
Proceedings of the INTERSPEECH 2006, 2006

Acoustic Model Adaptation Based on Coarse/Fine Training of Transfer Vectors Using Directional Statistics.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

An Extremely Large Vocabulary Approach to Named Entity Extraction from Speech.
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006

2005
Selection of Shared-State Hidden Markov Model Structure Using Bayesian Criterion.
IEICE Trans. Inf. Syst., 2005

Digital video clips covering computer ethics in higher education.
Proceedings of the 33rd Annual ACM SIGUCCS Conference on User Services 2005, 2005

Lattice QCD Simulations as an HPC Challenge.
Proceedings of the High-Performance Computing - 6th International Symposium, 2005

Effects of Bayesian predictive classification using variational Bayesian posteriors for sparse training data in speech recognition.
Proceedings of the INTERSPEECH 2005, 2005

Experiments with probabilistic principal component analysis in LVCSR.
Proceedings of the INTERSPEECH 2005, 2005

Generalized fast on-the-fly composition algorithm for WFST-based speech recognition.
Proceedings of the INTERSPEECH 2005, 2005

2004
Variational bayesian estimation and clustering for speech recognition.
IEEE Trans. Speech Audio Process., 2004

A theoretical analysis of speech recognition based on feature trajectory models.
Proceedings of the INTERSPEECH 2004, 2004

Bayesian modelling of the speech spectrum using mixture of Gaussians.
Proceedings of the 2004 IEEE International Conference on Acoustics, 2004

Automatic determination of acoustic model topology using variational Bayesian estimation and clustering.
Proceedings of the 2004 IEEE International Conference on Acoustics, 2004

2003
Application of variational Bayesian estimation and clustering to acoustic model adaptation.
Proceedings of the 2003 IEEE International Conference on Acoustics, 2003

Recognition method with parametric trajectory generated from mixture distribution HMMs.
Proceedings of the 2003 IEEE International Conference on Acoustics, 2003

2002
Restructuring Gaussian mixture density functions in speaker-independent acoustic models.
Speech Commun., 2002

Application of Variational Bayesian Approach to Speech Recognition.
Proceedings of the Advances in Neural Information Processing Systems 15 [Neural Information Processing Systems, 2002

Constructing shared-state hidden Markov models based on a Bayesian approach.
Proceedings of the 7th International Conference on Spoken Language Processing, ICSLP2002, 2002

A recognition method with parametric trajectory synthesized using direct relations between static and dynamic feature vector time series.
Proceedings of the IEEE International Conference on Acoustics, 2002

2000
Cellular-phone based speech-to-speech translation system ATR-MATRIX.
Proceedings of the Sixth International Conference on Spoken Language Processing, 2000

1999
Unified framework for acoustic topology modelling: ML-SSS and question-based decision trees.
Proceedings of the Sixth European Conference on Speech Communication and Technology, 1999

Acoustic modeling based on a generalized laplacian distribution.
Proceedings of the Sixth European Conference on Speech Communication and Technology, 1999

Japanese spontaneous speech database with wide regional and age distribution.
Proceedings of the Sixth European Conference on Speech Communication and Technology, 1999

1997
Predicting speech recognition performance.
Proceedings of the Fifth European Conference on Speech Communication and Technology, 1997

1996
Japanese speech databases for robust speech recognition.
Proceedings of the 4th International Conference on Spoken Language Processing, 1996

1995
A minimum error training of garbage model for keyword spotter with artificially generated training data.
Proceedings of the Fourth European Conference on Speech Communication and Technology, 1995

1994
A speech and language database for speech translation research.
Proceedings of the 3rd International Conference on Spoken Language Processing, 1994


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