Genetic Algorithm-Based Improvement of Robot Hearing Capabilities in Separating and Recognizing Simultaneous Speech Signals. - Shun'ichi Yamamoto; Kazuhiro Nakadai; Mikio Nakano; Hiroshi Tsujino; Jean-Marc Valin; Ryu Takeda; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (IEA/AIE, 2006)

Improving speech recognition of two simultaneous speech signals by integrating ICA BSS and automatic missing feature mask generation. - Ryu Takeda; Shun'ichi Yamamoto; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (INTERSPEECH, 2006)

Leak energy based missing feature mask generation for ICA and GSS and its evaluation with simultaneous speech recognition. - Shun'ichi Yamamoto; Ryu Takeda; Kazuhiro Nakadai; Mikio Nakano; Hiroshi Tsujino; Jean-Marc Valin; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (SAPA@INTERSPEECH, 2006)

Missing-Feature based Speech Recognition for Two Simultaneous Speech Signals Separated by ICA with a pair of Humanoid Ears. - Ryu Takeda; Shun'ichi Yamamoto; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (IROS, 2006)

Recognition of Simultaneous Speech by Estimating Reliability of Separated Signals for Robot Audition. - Shun'ichi Yamamoto; Ryu Takeda; Kazuhiro Nakadai; Mikio Nakano; Hiroshi Tsujino; Jean-Marc Valin; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (PRICAI, 2006)

Evaluation of Two Simultaneous Continuous Speech Recognition with ICA BSS and MFT-Based ASR. - Ryu Takeda; Shun'ichi Yamamoto; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (IEA/AIE, 2007)

Exploiting known sound source signals to improve ICA-based robot audition in speech separation and recognition. - Ryu Takeda; Kazuhiro Nakadai; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (IROS, 2007)

A beat-tracking robot for human-robot interaction and its evaluation. - Kazumasa Murata; Kazumasa Nakadai; Ryu Takeda; Hiroshi G. Okuno; Toyotaka Torii; Yuji Hasegawa; Hiroshi Tsujino (Humanoids, 2008)

A robot listens to music and counts its beats aloud by separating music from counting voice. - Takeshi Mizumoto; Ryu Takeda; Kazuyoshi Yoshii; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (IROS, 2008)

A robot uses its own microphone to synchronize its steps to musical beats while scatting and singing. - Kazumasa Murata; Kazuhiro Nakadai; Kazuyoshi Yoshii; Ryu Takeda; Toyotaka Torii; Hiroshi G. Okuno; Yuji Hasegawa; Hiroshi Tsujino (IROS, 2008)

Barge-in-able robot audition based on ICA and missing feature theory under semi-blind situation. - Ryu Takeda; Kazuhiro Nakadai; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (IROS, 2008)

A Robot Singer with Music Recognition Based on Real-Time Beat Tracking. - Kazumasa Murata; Kazuhiro Nakadai; Kazuyoshi Yoshii; Ryu Takeda; Toyotaka Torii; Hiroshi G. Okuno; Yuji Hasegawa; Hiroshi Tsujino (ISMIR, 2008)

Automatic estimation of reverberation time with robot speech to improve ICA-based robot audition. - Ryu Takeda; Kazuhiro Nakadai; Toru Takahashi 001; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (Humanoids, 2009)

ICA-based efficient blind dereverberation and echo cancellation method for barge-in-able robot audition. - Ryu Takeda; Kazuhiro Nakadai; Toru Takahashi 001; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (ICASSP, 2009)

Step-size parameter adaptation of multi-channel semi-blind ICA with piecewise linear model for barge-in-able robot audition. - Ryu Takeda; Kazuhiro Nakadai; Toru Takahashi 001; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (IROS, 2009)

Upper-limit evaluation of robot audition based on ICA-BSS in multi-source, barge-in and highly reverberant conditions. - Ryu Takeda; Kazuhiro Nakadai; Toru Takahashi 001; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (ICRA, 2010)

Analyzing user utterances in barge-in-able spoken dialogue system for improving identification accuracy. - Kyoko Matsuyama; Kazunori Komatani; Ryu Takeda; Toru Takahashi 001; Tetsuya Ogata; Hiroshi G. Okuno (INTERSPEECH, 2010)

Speedup and performance improvement of ICA-based robot audition by parallel and resampling-based block-wise processing. - Ryu Takeda; Kazuhiro Nakadai; Toru Takahashi 001; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (IROS, 2010)

Bidirectional OM-LSA speech estimator for noise robust speech recognition. - Yasunari Obuchi; Ryu Takeda; Masahito Togami (ASRU, 2011)

Design and implementation of selectable sound separation on the Texai telepresence system using HARK. - Takeshi Mizumoto; Kazuhiro Nakadai; Takami Yoshida; Ryu Takeda; Takuma Otsuka; Toru Takahashi 001; Hiroshi G. Okuno (ICRA, 2011)

Evaluation of Spoken Dialogue System that uses Utterance Timing to Interpret User Utterances. - Kazunori Komatani; Kyoko Matsuyama; Ryu Takeda; Tetsuya Ogata; Hiroshi G. Okuno (IWSDS, 2011)

Voice activity detection based on augmented statistical noise suppression. - Yasunari Obuchi; Ryu Takeda; Naoyuki Kanda (APSIPA, 2012)

Multichannel speech dereverberation and separation with optimized combination of linear and non-linear filtering. - Masahito Togami; Yohei Kawaguchi; Ryu Takeda; Yasunari Obuchi; Nobuo Nukaga (ICASSP, 2012)

Using rhythmic features for Japanese spoken term detection. - Naoyuki Kanda; Ryu Takeda; Yasunari Obuchi (SLT, 2012)

Efficient Blind Dereverberation and Echo Cancellation Based on Independent Component Analysis for Actual Acoustic Signals. - Ryu Takeda; Kazuhiro Nakadai; Toru Takahashi 001; Kazunori Komatani; Tetsuya Ogata; Hiroshi G. Okuno (Neural Comput., 2012)

Elastic spectral distortion for low resource speech recognition with deep neural networks. - Naoyuki Kanda; Ryu Takeda; Yasunari Obuchi (ASRU, 2013)

Noise robust speaker verification with delta cepstrum normalization. - Naoyuki Kanda; Ryu Takeda; Yasunari Obuchi (INTERSPEECH, 2013)

Optimized Speech Dereverberation From Probabilistic Perspective for Time Varying Acoustic Transfer Function. - Masahito Togami; Yohei Kawaguchi; Ryu Takeda; Yasunari Obuchi; Nobuo Nukaga (IEEE Trans. Speech Audio Process., 2013)

Boundary contraction training for acoustic models based on discrete deep neural networks. - Ryu Takeda; Naoyuki Kanda; Nobuo Nukaga (INTERSPEECH, 2014)

Acoustic model training based on node-wise weight boundary model increasing speed of discrete neural networks. - Ryu Takeda; Kazunori Komatani; Kazuhiro Nakadai (ASRU, 2015)

Performance comparison of MUSIC-based sound localization methods on small humanoid under low SNR conditions. - Ryu Takeda; Kazunori Komatani (Humanoids, 2015)

Bayesian Language Model based on Mixture of Segmental Contexts for Spontaneous Utterances with Unexpected Words. - Ryu Takeda; Kazunori Komatani (COLING, 2016)

Sound source localization based on deep neural networks with directional activate function exploiting phase information. - Ryu Takeda; Kazunori Komatani (ICASSP, 2016)

Discriminative multiple sound source localization based on deep neural networks using independent location model. - Ryu Takeda; Kazunori Komatani (SLT, 2016)

Unsupervised adaptation of deep neural networks for sound source localization using entropy minimization. - Ryu Takeda; Kazunori Komatani (ICASSP, 2017)

Unsupervised Segmentation of Phoneme Sequences based on Pitman-Yor Semi-Markov Model using Phoneme Length Context. - Ryu Takeda; Kazunori Komatani (IJCNLP(1), 2017)

Node Pruning Based on Entropy of Weights and Node Activity for Small-Footprint Acoustic Model Based on Deep Neural Networks. - Ryu Takeda; Kazuhiro Nakadai; Kazunori Komatani (INTERSPEECH, 2017)

Lexical Acquisition through Implicit Confirmations over Multiple Dialogues. - Kohei Ono; Ryu Takeda; Eric Nichols; Mikio Nakano; Kazunori Komatani (SIGDIAL Conference, 2017)

Acoustic model training based on node-wise weight boundary model for fast and small-footprint deep neural networks. - Ryu Takeda; Kazuhiro Nakadai; Kazunori Komatani (Comput. Speech Lang., 2017)

Size Effect on Call Properties of Japanese Tree Frogs Revealed by Audio-Processing Technique. - Ikkyu Aihara; Ryu Takeda; Takeshi Mizumoto; Takuma Otsuka; Hiroshi G. Okuno (J. Robotics Mechatronics, 2017)

Noise-Robust MUSIC-Based Sound Source Localization Using Steering Vector Transformation for Small Humanoids. - Ryu Takeda; Kazunori Komatani (J. Robotics Mechatronics, 2017)

Unsupervised Adaptation of Neural Networks for Discriminative Sound Source Localization with Eliminative Constraint. - Ryu Takeda; Yoshiki Kudo; Kazuki Takashima; Yoshifumi Kitamura; Kazunori Komatani (ICASSP, 2018)

Multi-timescale Feature-extraction Architecture of Deep Neural Networks for Acoustic Model Training from Raw Speech Signal. - Ryu Takeda; Kazuhiro Nakadai; Kazunori Komatani (IROS, 2018)

Word Segmentation From Phoneme Sequences Based On Pitman-Yor Semi-Markov Model Exploiting Subword Information. - Ryu Takeda; Kazunori Komatani; Alexander I. Rudnicky (SLT, 2018)

Frame-Wise Online Unsupervised Adaptation of DNN-HMM Acoustic Model from Perspective of Robust Adaptive Filtering. - Ryu Takeda; Kazunori Komatani (INTERSPEECH, 2020)

Multiple-Embedding Separation Networks: Sound Class-Specific Feature Extraction for Universal Sound Separation. - Hokuto Munakata; Ryu Takeda; Kazunori Komatani (APSIPA ASC, 2021)

Spatial Normalization to Reduce Positional Complexity in Direction-aided Supervised Binaural Sound Source Separation. - Ryu Takeda; Kazuhiro Nakadai; Kazunori Komatani (APSIPA ASC, 2021)

Age Estimation with Speech-Age Model for Heterogeneous Speech Datasets. - Ryu Takeda; Kazunori Komatani (Interspeech, 2021)

Design Guidelines for Developing Systems for Dialogue System Competitions. - Kazunori Komatani; Ryu Takeda; Keisuke Nakashima; Mikio Nakano (IWSDS, 2021)

Investigation of Node Pruning Criteria for Neural Networks Model Compression with Non-Linear Function and Non-Uniform Network Topology. - Kazuhiro Nakadai; Yosuke Fukumoto; Ryu Takeda (SLT, 2021)

Training Data Generation with DOA-based Selecting and Remixing for Unsupervised Training of Deep Separation Models. - Hokuto Munakata; Ryu Takeda; Kazunori Komatani (INTERSPEECH, 2022)

Empirical Sampling from Latent Utterance-wise Evidence Model for Missing Data ASR based on Neural Encoder-Decoder Model. - Ryu Takeda; Yui Sudo; Kazuhiro Nakadai; Kazunori Komatani (INTERSPEECH, 2022)

Knowledge Graph Augmentation with Entity Identification for Improving Knowledge Graph Completion Performance. - Shuichi Chikatsuji; Kenta Yamamoto; Ryu Takeda; Kazunori Komatani (PRICAI (1), 2022)

Lexical Acquisition during Dialogues through Implicit Confirmation. - Kazunori Komatani; Kohei Ono; Ryu Takeda; Eric Nichols; Mikio Nakano (Dialogue Discourse, 2022)

Out-of-Vocabulary Word Detection in Spoken Dialogues Based on Joint Decoding with User Response Patterns. - Miki Oshio; Hokuto Munakata; Ryu Takeda; Kazunori Komatani (APSIPA ASC, 2023)

Flexible Evidence Model to Reduce Uncertainty Mismatch Between Speech Enhancement and ASR Based on Encoder-Decoder Architecture. - Ryu Takeda; Yui Sudo; Kazunori Komatani (APSIPA ASC, 2023)

Meta-domain Adversarial Contrastive Learning for Alleviating Individual Bias in Self-sentiment Predictions. - Zhi Li; Ryu Takeda; Takahiro Hara (INTERSPEECH, 2023)

Recursive Sound Source Separation with Deep Learning-based Beamforming for Unknown Number of Sources. - Hokuto Munakata; Ryu Takeda; Kazunori Komatani (INTERSPEECH, 2023)

Analyzing Differences in Subjective Annotations by Participants and Third-party Annotators in Multimodal Dialogue Corpus. - Kazunori Komatani; Ryu Takeda; Shogo Okada (SIGDIAL, 2023)

Joint Separation and Localization of Moving Sound Sources Based on Neural Full-Rank Spatial Covariance Analysis. - Hokuto Munakata; Yoshiaki Bando; Ryu Takeda; Kazunori Komatani; Masaki Onishi (IEEE Signal Process. Lett., 2023)

Scale-invariant Online Voice Activity Detection under Various Environments. - Ryu Takeda; Kazunori Komatani (APSIPA, 2024)

Collecting Human-Agent Dialogue Dataset with Frontal Brain Signal toward Capturing Unexpressed Sentiment. - Shun Katada; Ryu Takeda; Kazunori Komatani (LREC/COLING, 2024)