Yi-Han Lin, Xunquan Chen, Ryoichi Takashima, Tetsuya Takiguchi,
"Zero-shot sound event classification using a sound attribute vector with global and local feature learning,"
2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2023-06.
Keisuke Yoshimi, Tristan Hascoet, Rousslan F. Julien Dossa, Ryoichi Takashima, Tetsuya Takiguchi, Satoru Oishi,
"Optimizing japanese dam reservoir inflow forecast for efficient operation,"
NeurIPS 2022 Workshop on Tackling Climate Change with Machine Learning, 2022-12.
Hajime Yano, Rio Yamana, Ryoichi Takashima, Tetsuya Takiguchi, Seiji Nakagawa,
"Current source localization using deep prior with depth weighting,"
2022 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), 2022-11.
Yihan Lin, Xunquan Chen, Ryoichi Takashima, Tetsuya Takiguchi,
"Binary attribute embeddings for zero-shot sound event classification,"
IEEE Global Conference on Consumer Electronics (GCCE), pp. 13-14, 2022-10.
Takuma Yoshimoto, Ryoichi Takashima, Chiho Sasaki, Tetsuya Takiguchi,
"Highly intelligible speech synthesis for spinal muscular atrophy patients based on model adaptation,"
Speech for Social Good Workshop (Satellite Event at Interspeech 2022), 2022-09.
Ryota Tsunoda, Ryo Aihara, Ryoichi Takashima, Tetsuya Takiguchi, Yoshie Imai,
"Speaker-targeted audio-visual speech recognition using a hybrid CTC/attention model with interference loss,"
2022 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 251-255, 2022-05.
Rio Yamana, Hajime Yano, Ryoichi Takashima, Tetsuya Takiguchi, Seiji Nakagawa,
"MEG source localization using deep prior,"
IEEE Global Conference on Life Sciences and Technologies (LifeTech), pp. 590-591, 2022-03.
Sota Shimizu, Keisuke Matsubara, Yuji Adachi, Kiyoto Tai, Ryoichi Takashima, Tetsuya Takiguchi,
"Comparative evaluation of neural vocoders for speech synthesis of operatic singing,"
IEEE Global Conference on Life Sciences and Technologies (LifeTech), pp. 28-29, 2022-03.
Yuki Matsuzaka, Ryoichi Takashima, Chiho Sasaki, Tetsuya Takiguchi,
"Data augmentation for dysarthric speech recognition based on text-to-speech synthesis,"
IEEE Global Conference on Life Sciences and Technologies (LifeTech), pp. 399-400, 2022-03.
Yuya Sawa, Ryoichi Takashima, Tetsuya Takiguchi,
"Adaptation of a pronunciation dictionary for dysarthric speech recognition,"
IEEE Global Conference on Life Sciences and Technologies (LifeTech), pp. 612-616, 2022-03.
Kento Fujiwara, Ryoichi Takashima, Chihiro Sugiyama, Nobukazu Tanaka, Kanji Nohara, Kazunori Nozaki, Tetsuya Takiguchi,
"Data augmentation based on frequency warping for recognition of cleft palate speech,"
2021 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), pp. 471-476, 2021-12.
Keisuke Matsubara, Takuma Okamoto, Ryoichi Takashima, Tetsuya Takiguchi, Tomoki Toda, Yoshinori Shiga, Hisashi Kawai,
"High-intelligibility speech synthesis for dysarthric speakers with LPCNet-based TTS and CycleVAE-based VC,"
2021 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 7058-7062, 2021-06.
Yuki Takashima, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Dysarthric speech recognition based on deep metric learning,"
INTERSPEECH, pp. 4796-4800, 2020-10.
Kenta Katahira, Yuji Adachi, Kiyoto Tai, Ryoichi Takashima, Tetsuya Takiguchi,
"Opera singing voice synthesis considering vowel variations,"
IEEE Global Conference on Consumer Electronics (GCCE), pp. 663-664, 2020-10.
Weihao Zhuang, Tristan Hascoet, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Convolutional neural networks memory optimization inference with splitting image,"
IEEE Global Conference on Consumer Electronics (GCCE), pp. 678-679, 2020-10.
Yuya Sawa, Ryoichi Takashima, Tetsuya Takiguchi,
"An investigation of end-to-end speech recognition using model adaptation for dysarthric speakers,"
IEEE Global Conference on Consumer Electronics (GCCE), pp. 712-713, 2020-10.
Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Two-step acoustic model adaptation for dysarthric speech recognition,"
2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 6104-6108, 2020-05.
Xuejiao Deng, Masako Akagi, Tristan Hascoet, Tetsuya Takiguchi, Kiyoto Tai, Yuji Adachi, Ryoichi Takashima, Yasuo Ariki,
"Adhesive strength estimation from copper surface images,"
The 26th International Workshop on Frontiers of Computer Vision (IW-FCV 2020), 2020-02.
Weihao Zhuang, Hascoet Tristan, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Optimizing the computational efficiency of 3D segmentation models for connectomics,"
The 26th International Workshop on Frontiers of Computer Vision (IW-FCV 2020), 2020-02.
Keiichi Tanida, Tristan Hascoet, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki, Natsuho Ooe, Takuya Sato,
"Application and evaluation of transfer learning to aquatic insect recognition,"
The 26th International Workshop on Frontiers of Computer Vision (IW-FCV 2020), 2020-02.
Naoyuki Kanda, Shota Horiguchi, Ryoichi Takashima, Yusuke Fujita, Kenji Nagamatsu, Shinji Watanabe,
"Auxiliary interference speaker loss for target-speaker speech recognition,"
INTERSPEECH, pp. 236-240, 2019-09.
Ryoichi Takashima, Sheng Li, Hisashi Kawai,
"Investigation of sequence-level knowledge distillation methods for CTC acoustic models,"
2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 6156-6160, 2019-05.
Sheng Li, Xugang Lu, Ryoichi Takashima, Peng Shen, Tatsuya Kawahara, Hisashi Kawai,
"Improving very deep time-delay neural network with vertical-attention for effectively training CTC-based ASR systems,"
2018 IEEE Spoken Language Technology Workshop (SLT), pp. 77-83, 2018-12.
Sheng Li, Xugang Lu, Ryoichi Takashima, Peng Shen, Tatsuya Kawahara, Hisashi Kawai,
"Improving CTC-based acoustic model with very deep residual time-delay neural networks,"
INTERSPEECH, pp. 3708-3712, 2018-09.
Ryoichi Takashima, Sheng Li, Hisashi Kawai,
"An investigation of a knowledge distillation method for CTC acoustic models,"
2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 5809-5813, 2018-04.
Ryoichi Takashima, Sheng Li, Hisashi Kawai,
"CTC loss function with a unit-level ambiguity penalty,"
2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 5909-5913, 2018-04.
Sheng Li, Xugang Lu, Peng Shen, Ryoichi Takashima, Tatsuya Kawahara, Hisashi Kawai,
"Incremental training and constructing the very deep convolutional residual network acoustic models,"
2017 IEEE Automatic Speech Recognition and Understanding Workshop (ASRU), pp. 222-227, 2017-12.
Yohei Kawaguchi, Ryoichi Takashima, Takashi Endo, Masahito Togami,
"Time-domain subsampling and reconstruction for microphone array,"
2017 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), pp. 370-374, 2017-12.
Yohei Kawaguchi, Sandra Ramaswami, Ryoichi Takashima, Takashi Endo, Rintaro Ikeshita,
"Sub-nyquist non-uniform sampling for low-cost sound monitoring,"
2017 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), pp. 452-456, 2017-12.
Ryoichi Takashima, Yohei Kawaguchi, Qinghua Sun, Takashi Sumiyoshi, Masahito Togami,
"An application of noise-robust speech translation using asynchronous smart devices,"
2017 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), pp. 1592-1595, 2017-12.
Sandra Ramaswami, Yohei Kawaguchi, Ryoichi Takashima, Takashi Endo, Masahito Togami,
"ADMM-based audio reconstruction for low-cost-sound-monitoring,"
2017 25th European Signal Processing Conference (EUSIPCO), pp. 1260-1264, 2017-09.
Ryoichi Takashima, Yohei Kawaguchi, Masahito Togami,
"Separation of vibration-derived sound signals based on fusion processing of vibration sensors and microphones,"
2017 25th European Signal Processing Conference (EUSIPCO), pp. 2428-2432, 2017-09.
Yusuke Fujita, Ryoich Takashima, Takeshi Homma, Masahito Togami,
"Data augmentation using multi-input multi-output source separation for deep neural network based acoustic modeling,"
INTERSPEECH, pp. 3818-3822, 2016-09.
Masahito Togami, Ryoichi Takashima, Yusuke Fujita,
"Solving permutation problem with a cascade combination of phase difference entropy and power spectral correlation,"
2016 IEEE International Workshop on Acoustic Signal Enhancement (IWAENC), 2016-09.
Yusuke Fujita, Ryoichi Takashima, Takeshi Homma, Rintaro Ikeshita, Yohei Kawaguchi, Takashi Sumiyoshi, Takashi Endo, Masahito Togami,
"Unified ASR system using LGM-based source separation, noise-robust feature extraction, and word hypothesis selection,"
2015 IEEE Workshop on Automatic Speech Recognition and Understanding (ASRU), pp. 416-422, 2015-12.
Masahito Togami, Yohei Kawaguchi, Ryoichi Takashima,
"Frequency domain acoustic echo reduction based on Kalman smoother with time-varying noise covariance matrix,"
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 5909-5913, 2014-05.
Takao Fujii, Ryo Aihara, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Voice conversion based on non-negative matrix factorization in noisy environments,"
IEEE/SICE International Symposium on System Integration, pp. 495-498, 2013-12.
Ryoichi Takashima, Ryo Aihara, Tetsuya Takiguchi, Yasuo Ariki,
"Noise-robust voice conversion based on spectral mapping on sparse space,"
8th ISCA Speech Synthesis Workshop (SSW), pp. 71-75, 2013-08.
Ryo Aihara, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Exemplar-based individuality-preserving voice conversion for articulation disorders in noisy environments,"
INTERSPEECH, pp. 3638-3641, 2013-08.
Toru Nakashika, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Voice conversion in high-order eigen space using deep belief nets,"
INTERSPEECH, pp. 369-372, 2013-08.
Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Prediction of unlearned position based on local regression for single-channel talker localization using acoustic transfer function,"
2013 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 4295-4299, 2013-05.
Ryo Aihara, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Individuality-preserving voice conversion for articulation disorders based on non-negative matrix factorization,"
2013 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 8037-8040, 2013-05.
Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Exemplar-based voice conversion in noisy environment,"
2012 IEEE Spoken Language Technology Workshop (SLT), pp. 313-317, 2012-12.
Toshiya Yoshioka, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Robust feature extraction to utterance fluctuations due to articulation disorders based on sparse expression,"
2012 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), 2012-12.
Ryo Aihara, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Consonant enhancement for articulation disorders based on non-negative matrix factorization,"
2012 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), 2012-12.
Tetsuya Takiguchi, Ryoichi Takashima, Yasuo Ariki, Toshiaki Imada, J.-F. L. Lin, Patricia K. Kuhl, Masaki Kawakatsu, Makoto Kotani,
"An adaboost-based weighting method for localizing human brain magnetic activity,"
2012 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), 2012-12.
Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Estimation of talker's head orientation based on discrimination of the shape of cross-power spectrum phase coefficients,"
INTERSPEECH, 2012-09.
Tetsuya Takiguchi, Toshiaki Imada, Ryoichi Takashima, Yasuo Ariki, J.-F. L. Lin, Patricia K. Kuhl, Masaki Kawakatsu, Makoto Kotani,
"A new multiple-kernel-learning weighting method for localizing human brain magnetic activity,"
2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 761-764, 2012-03.
Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Single-channel head orientation estimation based on discrimination of acoustic transfer function,"
INTERSPEECH, pp. 2721-2724, 2011-08.
Ryoichi Takashima, Tohru Nagano, Ryuki Tachibana, Masafumi Nishimura,
"Agglomerative hierarchical clustering of emotions in speech based on subjective relative similarity,"
INTERSPEECH, pp. 2473-2476, 2011-08.
Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Feature selection based on multiple kernel learning for single-channel sound source localization using the acoustic transfer function,"
2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 2696-2699, 2011-05.
Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"HMM-based separation of acoustic transfer function for single-channel sound source localization,"
2010 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 2830-2833, 2010-03.
Takashi Muroi, Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Gradient-based acoustic features for speech recognition,"
2009 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2009), pp. 445-448, 2009-12.
Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Single-channel multi-talker-localization based on maximum likelihood,"
IEEE Statistical Signal Processing Workshop 2009, pp. 769-772, 2009-08.
Ryoichi Takashima, Tetsuya Takiguchi, Yasuo Ariki,
"Monaural sound-source-direction estimation using the acoustic transfer function of an active microphone,"
12th International Conference on Information Fusion, pp. 48-53, 2009-07.
Tetsuya Takiguchi, Ryoichi Takashima, Yasuo Ariki,
"Active microphone with parabolic reflection board for estimation of sound source direction,"
Joint workshop on Hands-free Speech Communication and Microphone Arrays (HSCMA2008), pp. 65-68, 2008-05.
Tetsuya Takiguchi, Ryoichi Takashima, Yasuo Ariki,
"Estimation of sound source direction using parabolic reflection board,"
International Workshop on Nonlinear Circuits and Signal Processing (NCSP2008), pp. 9-12, 2008-03.