| 2026 | SIGdial | Suppressing Unnecessary Clarification Requests for Unknown Word Acquisition in Spoken Dialogue Using Syllable-Based ASR Confidence. | Takumi Furuta, Ryu Takeda, Kazunori Komatani |
| 2026 | SIGdial | Question Types for Knowledge Acquisition in LLM-based Dialogue Systems: Experiments with Simulated and Human Users. | Kazunori Komatani, Ryu Takeda, Mikio Nakano |
| 2026 | SIGdial | Rethinking Binary Evaluation of Turn-Taking under Inherent Ambiguity. | Yunosuke Kubo, Kenta Yamamoto, Ryu Takeda, Kazunori Komatani |
| 2025 | SIGdial | Learning to Ask Efficiently in Dialogue: Reinforcement Learning Extensions for Stream-based Active Learning. | Issei Waki, Ryu Takeda, Kazunori Komatani |
| 2024 | COLING | Collecting Human-Agent Dialogue Dataset with Frontal Brain Signal toward Capturing Unexpressed Sentiment. | Shun Katada, Ryu Takeda, Kazunori Komatani |
| 2023 | Interspeech | Meta-domain Adversarial Contrastive Learning for Alleviating Individual Bias in Self-sentiment Predictions. | Zhi Li, Ryu Takeda, Takahiro Hara |
| 2023 | Interspeech | Recursive Sound Source Separation with Deep Learning-based Beamforming for Unknown Number of Sources. | Hokuto Munakata, Ryu Takeda, Kazunori Komatani |
| 2023 | SIGdial | Analyzing Differences in Subjective Annotations by Participants and Third-party Annotators in Multimodal Dialogue Corpus. | Kazunori Komatani, Ryu Takeda, Shogo Okada |
| 2022 | Interspeech | Training Data Generation with DOA-based Selecting and Remixing for Unsupervised Training of Deep Separation Models. | Hokuto Munakata, Ryu Takeda, Kazunori Komatani |
| 2022 | Interspeech | 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 |
| 2022 | PRICAI | Knowledge Graph Augmentation with Entity Identification for Improving Knowledge Graph Completion Performance. | Shuichi Chikatsuji, Kenta Yamamoto, Ryu Takeda, Kazunori Komatani |
| 2021 | Interspeech | Age Estimation with Speech-Age Model for Heterogeneous Speech Datasets. | Ryu Takeda, Kazunori Komatani |
| 2020 | Interspeech | Frame-Wise Online Unsupervised Adaptation of DNN-HMM Acoustic Model from Perspective of Robust Adaptive Filtering. | Ryu Takeda, Kazunori Komatani |
| 2018 | ICASSP | Unsupervised Adaptation of Neural Networks for Discriminative Sound Source Localization with Eliminative Constraint. | Ryu Takeda, Yoshiki Kudo, Kazuki Takashima, Yoshifumi Kitamura, Kazunori Komatani |
| 2018 | IROS | Multi-timescale Feature-extraction Architecture of Deep Neural Networks for Acoustic Model Training from Raw Speech Signal. | Ryu Takeda, Kazuhiro Nakadai, Kazunori Komatani |
| 2017 | ICASSP | Unsupervised adaptation of deep neural networks for sound source localization using entropy minimization. | Ryu Takeda, Kazunori Komatani |
| 2017 | IJCNLP | Unsupervised Segmentation of Phoneme Sequences based on Pitman-Yor Semi-Markov Model using Phoneme Length Context. | Ryu Takeda, Kazunori Komatani |
| 2017 | Interspeech | 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 |
| 2017 | SIGdial | Lexical Acquisition through Implicit Confirmations over Multiple Dialogues. | Kohei Ono, Ryu Takeda, Eric Nichols, Mikio Nakano, Kazunori Komatani |
| 2016 | COLING | Bayesian Language Model based on Mixture of Segmental Contexts for Spontaneous Utterances with Unexpected Words. | Ryu Takeda, Kazunori Komatani |
| 2016 | ICASSP | Sound source localization based on deep neural networks with directional activate function exploiting phase information. | Ryu Takeda, Kazunori Komatani |
| 2015 | ASRU | Acoustic model training based on node-wise weight boundary model increasing speed of discrete neural networks. | Ryu Takeda, Kazunori Komatani, Kazuhiro Nakadai |
| 2014 | Interspeech | Boundary contraction training for acoustic models based on discrete deep neural networks. | Ryu Takeda, Naoyuki Kanda, Nobuo Nukaga |
| 2013 | ASRU | Elastic spectral distortion for low resource speech recognition with deep neural networks. | Naoyuki Kanda, Ryu Takeda, Yasunari Obuchi |
| 2013 | Interspeech | Noise robust speaker verification with delta cepstrum normalization. | Naoyuki Kanda, Ryu Takeda, Yasunari Obuchi |
| 2012 | ICASSP | Multichannel speech dereverberation and separation with optimized combination of linear and non-linear filtering. | Masahito Togami, Yohei Kawaguchi, Ryu Takeda, Yasunari Obuchi, Nobuo Nukaga |
| 2011 | ASRU | Bidirectional OM-LSA speech estimator for noise robust speech recognition. | Yasunari Obuchi, Ryu Takeda, Masahito Togami |
| 2011 | ICRA | 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, Hiroshi G. Okuno |
| 2010 | Interspeech | Analyzing user utterances in barge-in-able spoken dialogue system for improving identification accuracy. | Kyoko Matsuyama, Kazunori Komatani, Ryu Takeda, Toru Takahashi, Tetsuya Ogata, Hiroshi G. Okuno |
| 2010 | IROS | Speedup and performance improvement of ICA-based robot audition by parallel and resampling-based block-wise processing. | Ryu Takeda, Kazuhiro Nakadai, Toru Takahashi, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno |
| 2010 | ICRA | 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, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno |
| 2009 | ICASSP | ICA-based efficient blind dereverberation and echo cancellation method for barge-in-able robot audition. | Ryu Takeda, Kazuhiro Nakadai, Toru Takahashi, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno |
| 2009 | IROS | 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, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno |
| 2008 | IROS | 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 |
| 2008 | IROS | 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 |
| 2008 | IROS | 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 |
| 2007 | IROS | 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 |
| 2006 | Interspeech | 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 |
| 2006 | Interspeech | 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 |
| 2006 | IROS | 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 |
| 2006 | PRICAI | 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 |