Atsushi Nakamura
Orcid: 0000-0003-0788-2221
According to our database1,
Atsushi Nakamura
authored at least 156 papers
between 1994 and 2024.
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Bibliography
2024
Electromagnetic Interference With the Mobile Communication Devices in Unmanned Aerial Vehicles and Its Countermeasures.
IEEE Access, 2024
Cryptographic Key Generation Using Conventional Single-Mode Fiber and an Optical Time Domain Reflectometer.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024
CW-WDM MSA compatible 100-mW (up to 50°C), 400-GHz spacing highly-reliable CW-DFB 8-channel laser array.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2024
2023
Definition of Mode Field Diameter for Few-Mode Fibers based on Stationary Expression of Propagation Constant.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023
Bending Radius Dependence of Power Coupling Coefficient and Spatial Mode Dispersion in Coupled Multi-Core Fibers.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2023
Proceedings of the Innovative Mobile and Internet Services in Ubiquitous Computing, 2023
Design and Implementation of a Throughput Improvement Method for Asynchronous Pulse Code Multiple Access.
Proceedings of the Fourteenth International Conference on Ubiquitous and Future Networks, 2023
2022
A 12-nm Autonomous Driving Processor With 60.4 TOPS, 13.8 TOPS/W CNN Executed by Task-Separated ASIL D Control.
IEEE J. Solid State Circuits, 2022
BOTDA-Based Technique for Measuring Maximum Loss and Crosstalk at Splice Point in Few-Mode Fibers.
IEICE Trans. Commun., 2022
Over 100 mW Uncooled Operation of SOA-integrated 1.3-µm Highly Reliable CW-DFB Laser.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022
Wideband Impulse Response Measurement of Coupled 2-Core Fibers of Various Lengths employing Dual-Comb Coherent Sampling.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022
Method of Estimating Inter-Core Crosstalk for Constructing Uncoupled Multi-Core Fiber Transmission Line.
Proceedings of the Optical Fiber Communications Conference and Exhibition, 2022
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
Design and Implementation of Pulse-Based Protocol with Chirp Spread Spectrum for Massive IoT.
Proceedings of the 20th International Symposium on Communications and Information Technologies, 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
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
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
J. Signal Process. Syst., 2014
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 15th Annual Conference of the International Speech Communication Association, 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
Proceedings of the 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2014
Proceedings of the IEEE 38th Annual Computer Software and Applications Conference, 2014
2013
Synthesis Lectures on Speech and Audio Processing, Morgan & Claypool Publishers, ISBN: 978-3-031-02562-4, 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
LGLC tunable laser with highly stable SMSR against large filter deviation for full C-band operation.
Proceedings of the 2013 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 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
Proceedings of the 14th Annual Conference of the International Speech Communication Association, 2013
A method for structure estimation of weighted finite-state transducers and its application to grapheme-to-phoneme conversion.
Proceedings of the 14th Annual Conference of the International Speech Communication Association, 2013
Is speech enhancement pre-processing still relevant when using deep neural networks for acoustic modeling?
Proceedings of the 14th Annual Conference of the International Speech Communication Association, 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
Proceedings of the IEEE International Conference on Acoustics, 2013
Proceedings of the Human Interface and the Management of Information. Information and Interaction for Health, Safety, Mobility and Complex Environments, 2013
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
IEEE Trans. Speech Audio Process., 2012
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
Speech Commun., 2012
Speech Commun., 2012
IEICE Trans. Electron., 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
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 13th Annual Conference of the International Speech Communication Association, 2012
Integrating Deep Neural Networks into Structural Classification Approach based on Weighted Finite-State Transducers.
Proceedings of the 13th Annual Conference of the International Speech Communication Association, 2012
Speaker Adaptation Using Variational Bayesian Linear Regression in Normalized Feature Space.
Proceedings of the 13th Annual Conference of the International Speech Communication Association, 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
Proceedings of the 2012 IEEE International Conference on Acoustics, 2012
Proceedings of the 2012 IEEE International Conference on Acoustics, 2012
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
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
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 12th Annual Conference of the International Speech Communication Association, 2011
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
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
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
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 11th Annual Conference of the International Speech Communication Association, 2010
Probabilistic integration of joint density model and speaker model for voice conversion.
Proceedings of the 11th Annual Conference of the International Speech Communication Association, 2010
A novel confidence measure based on marginalization of jointly estimated error cause probabilities.
Proceedings of the 11th Annual Conference of the International Speech Communication Association, 2010
Proceedings of the 11th Annual Conference of the International Speech Communication Association, 2010
A regularized discriminative training method of acoustic models derived by minimum relative entropy discrimination.
Proceedings of the 11th Annual Conference of the International Speech Communication Association, 2010
Improvements of search error risk minimization in viterbi beam search for speech recognition.
Proceedings of the 11th Annual Conference of the International Speech Communication Association, 2010
Proceedings of the IEEE International Conference on Acoustics, 2010
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
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
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 10th Annual Conference of the International Speech Communication Association, 2009
Margin-space integration of MPE loss via differencing of MMI functionals for generalized error-weighted discriminative training.
Proceedings of the 10th Annual Conference of the International Speech Communication Association, 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
Proceedings of the 2009 IEEE Hot Chips 21 Symposium (HCS), 2009
2008
Speech Commun., 2008
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 9th Annual Conference of the International Speech Communication Association, 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
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 8th Annual Conference of the International Speech Communication Association, 2007
String and lattice based discriminative training for the corpus of spontaneous Japanese lecture transcription task.
Proceedings of the 8th Annual Conference of the International Speech Communication Association, 2007
The world of mushrooms: human-computer interaction prototype systems for ambient intelligence.
Proceedings of the 9th International Conference on Multimodal Interfaces, 2007
Proceedings of the IEEE International Conference on Acoustics, 2007
2006
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
IEEE Comput. Intell. Mag., 2006
Sentence boundary detection using sequential dependency analysis combined with CRF-based chunking.
Proceedings of the Ninth International Conference on Spoken Language Processing, 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
Proceedings of the 2006 IEEE International Conference on Acoustics Speech and Signal Processing, 2006
2005
IEICE Trans. Inf. Syst., 2005
Proceedings of the 33rd Annual ACM SIGUCCS Conference on User Services 2005, 2005
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 9th European Conference on Speech Communication and Technology, 2005
Proceedings of the 9th European Conference on Speech Communication and Technology, 2005
Proceedings of the 9th European Conference on Speech Communication and Technology, 2005
2004
IEEE Trans. Speech Audio Process., 2004
Proceedings of the 8th International Conference on Spoken Language Processing, 2004
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
Proceedings of the Advances in Neural Information Processing Systems 15 [Neural Information Processing Systems, 2002
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
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
Proceedings of the Sixth European Conference on Speech Communication and Technology, 1999
Proceedings of the Sixth European Conference on Speech Communication and Technology, 1999
1997
Proceedings of the Fifth European Conference on Speech Communication and Technology, 1997
1996
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
Proceedings of the 3rd International Conference on Spoken Language Processing, 1994