Ryuki Tachibana  Ryuki Tachibana photo       

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Sr. Manager, AI
Tokyo Research Laboratory, Yamato, Japan
  +81dash50dash3150dash1269

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More information:  Watermarking Publications


2017

Human-like Hand Reaching by Motion Prediction using Long Short-Term Memory
Phongtharin Vinayavekhin, Michiaki Tatsubori, Daiki Kimura, Yifan Huang, Giovanni De Magistris, Asim Munawar, and Ryuki Tachibana
Social Robotics - 9th International Conference (ICSR 2017), Nov 22-24, 2017
Abstract   (to appear)

Text to image generative model using constrained embedding space mapping
Subhajit Chaudhury, Sakyasingha Dasgupta, Asim Munawar, Md. A. Salam Khan and Ryuki Tachibana
IEEE International workshop on Machine learning for Signal Processing (MLSP), 2017, IEEE Xplore

Conditional generation of multi-modal data using constrained embedding space mapping
Subhajit Chaudhury, Sakyasingha Dasgupta, Asim Munawar, Md. A. Salam Khan, Ryuki Tachibana
ICML 2017 Workshop on Implicit Models
arXiv:1707.00860

Effective Joint Training of Denoising Feature Space Transforms and Neural Network Based Acoustic Models
Takashi Fukuda, Osamu Ichikawa, Gakuto Kurata, Ryuki Tachibana, Samuel Thomas, Bhuvana Ramabhadran
proc. of ICASSP, pp. pp. 5190-5194, 2017

Deep reinforcement learning for high precision assembly tasks
Inoue, Tadanobu and De Magistris, Giovanni and Munawar, Asim and Yokoya, Tsuyoshi and Tachibana, Ryuki
arXiv preprint arXiv:1708.04033, 2017
Abstract


2016

Convolutional Neural Network Pre-trained with Projection Matrices on Linear Discriminant Analysis
Takashi Fukuda, Osamu Ichikawa, and Ryuki Tachibana
Proc. of 2016 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2016)

Domain Adaptation of CNN Based Acoustic Models Under Limited Resource Settings.
Suzuki, Masayuki and Tachibana, Ryuki and Thomas, Samuel and Ramabhadran, Bhuvana and Saon, George
INTERSPEECH, pp. 1588--1592, 2016
Abstract

Speech Recognition Robust Against Speech Overlapping in Monaural Recordings of Telephone Conversations
M. Suzuki, G. Kurata, T. Nagano, R. Tachibana
Proceedings of the 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP2016), pp. 5685-5689


2015

Unsupervised pronunciation disambiguation of language model training corpora
Ryuki, Tachibana and Nobuyasu, Itoh and Gakuto, Kurata and Masafumi, Nishimura and Nicola, Ueffing and Daniel, Willett and others
研究報告音楽情報科学 (MUS) 2015(65), 1--4
Abstract

Effective speech suppression using a two-channel microphone array for privacy protection in face-to-face sales monitoring
Osamu Ichikawa, Takashi Fukuda, and Ryuki Tachibana
Acoustical Science and Technology (Special Issue on Applied System), 507-515, 2015

A metric for evaluating speech recognizer output based on human-perception model
Nobuyasu Itoh, Gakuto Kurata, Ryuki Tachibana, and Masafumi Nishimura
INTERPSEECH, 2015


2014

A METRIC FOR EVALUATING SPEECH RECOGNITION ACCURACY BASED ON HUMAN PERCEPTION
Itoh Nobuyasu, Kurata Gakuto, Tachibana Ryuki, Nishimura Masafumi
情報処理学会研究報告. SLP, 音声言語情報処理 2014(11), 1--4, 一般社団法人情報処理学会


2012

Constructing ensembles of dissimilar acoustic models using hidden attributes of training data
Takashi Fukuda, Ryuki Tachibana, Upendra Chaudhari, Bhuvana Ramabhadran, Puming Zhan
Acoustics, Speech and Signal Processing (ICASSP), 2012 IEEE International Conference on, pp. 4141--4144


2011

Agglomerative Hierarchical Clustering of Emotions in Speech Based on Subjective Relative Similarity.
Ryoichi Takashima, Tohru Nagano, Ryuki Tachibana, Masafumi Nishimura
INTERSPEECH, pp. 2473--2476, 2011

Frame-level AnyBoost for LVCSR with the MMI Criterion
Ryuki Tachibana, Takashi Fukuda, Upendra Chaudhari, Bhuvana Ramabhadran, Puming Zhan
Automatic Speech Recognition and Understanding (ASRU), 2011 IEEE Workshop on, pp. 12--17


2010

Speech synthesis by modeling harmonics structure with multiple function.
Toru Nakashika, Ryuki Tachibana, Masafumi Nishimura, Tetsuya Takiguchi, Yasuo Ariki
INTERSPEECH, pp. 945--948, 2010


2009

Japanese pitch conversion for voice morphing based on differential modeling.
Ryuki Tachibana, Zhiwei Shuang, Masafumi Nishimura
INTERSPEECH, pp. 2651--2654, 2009


2008

Improving Phoneme and Accent Estimation by Leveraging a Dictionary for a Stochastic TTS Front-end
T. Nagano, R. Tachibana, N. Itoh, M. Nishimura
Proceedings of the 2008 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP2008), pp. 4689-4692


2007

Automatic Prosody Labeling using Multiple Models for Japanese
R. Tachibana, T. Nagano, G. Kurata, M. Nishimura, N. Babaguchi
IEICE transactions on information and systems E90-D(11), 1805-1812, 2007

Preliminary Experiments toward Automatic Generation of New TTS Voices from Recorded Speech Alone
R. Tachibana, T. Nagano, G. Kurata, M. Nishimura, N. Babaguchi
The eighth conference in the annual series of INTERSPEECH (INTERSPEECH2007), pp. 1917-1920

Automatic Accent Labeling for a Text-to-Speech System
RYUKI Tachibana, TOHRU Nagano, GAKUTO Kurata, MASAFUMI Nishimura, NOBORU Babaguchi
IPSJ SIG Technical Reports 2007(11), 97--102