Hokuto Munakata, Yoshiaki Bando, Ryu Takeda, Kazunori Komatani, Masaki Onishi: Joint Separation and Localization of Moving Sound Sources Based on Neural Full-Rank Spatial Covariance Analysis. IEEE Signal Processing Letters, Vol. 30, pp. 384-388, 2023. [doi]
Shun Katada, Shogo Okada, Kazunori Komatani: Effects of Physiological Signals in Different Types of Multimodal Sentiment Estimation. IEEE Transactions on Affective Computing, Vol. 14, Issue 3, pp.2443-2457, 2023. [doi]
Kazunori Komatani, Kohei Ono, Ryu Takeda, Eric Nichols, Mikio Nakano: User Impressions of System Questions to Acquire Lexical Knowledge during Dialogues. Dialogue and Discourse, Vol. 13, No. 1, pp.96-122, 2022. [doi]
Yuta Matsumoto, Takafumi Fujita, Arne Ludwig, Andreas D. Wieck, Kazunori Komatani, Akira Oiwa: Noise-robust classification of single-shot electron spin readouts using a deep neural network. npj Quantum Information, 7, 136, 2021. [doi]
Mikio Nakano, Kazunori Komatani: A Framework for Building Closed-Domain Chat Dialogue Systems. Knowledge-Based Systems, Volume 204, 24 pages, 106212, September 2020. [doi]
Arisa Ema, Hirotaka Osawa, Reina Saijo, Akinori Kubo, Takushi Otani, Hiromitsu Hattori, Naonori Akiya, Nobutsugu Kanzaki, Minao Kukita, Kazunori Komatani, Ryutaro Ichise: Clarifying Privacy, Property, and Power: Case Study on Value Conflict Between Communities. Proceedings of the IEEE,Volume 107, Issue 3,pp.575–581, 2019. [doi]
Kazunori Komatani, Naoki Hotta, Satoshi Sato, Mikio Nakano: User-Adaptive A Posteriori Restoration for Incorrectly Segmented Utterances in Spoken Dialogue Systems. Dialogue and Discourse, Vol. 8, No. 2, pp.206-224, 2017. [doi]
Ryu Takeda, Kazuhiro Nakadai and Kazunori Komatani: Acoustic Model Training based on Node-wise Weight Boundary Model for Fast and Small-footprint Deep Neural Networks. Computer Speech & Language, Volume 46, Pages 461-480, November 2017. [doi]
Ryu Takeda, Kazunori Komatani: Noise-robust MUSIC-based Sound Source Localization using Steering Vector Transformation for Small Humanoids. Journal of Robotics and Mechatronics, Vol.29, No.1, pp.26-36, 2017. [doi]
Kazunori Komatani, Naoki Hotta, Satoshi Sato, Mikio Nakano: Posteriori Restoration of Turn-Taking and ASR Results for Incorrectly Segmented Utterances. IEICE Transactions on Information and Systems, Vol.E98-D, No.11, pp.1923-1931, 2015. [doi]
Kazunori Komatani, Mikio Nakano, Masaki Katsumaru, Kotaro Funakoshi, Tetsuya Ogata, Hiroshi G. Okuno: Automatic Allocation of Training Data for Speech Understanding based on Multiple Model Combinations. IEICE Transactions on Information and Systems, Vol.E95-D, No.9, pp.2298-2307, 2012. doi
Mikio Nakano, Yuji Hasegawa, Kotaro Funakoshi, Johane Takeuchi, Toyotaka Torii, Kazuhiro Nakadai, Naoyuki Kanda, Kazunori Komatani, Hiroshi G Okuno, Hiroshi Tsujino: A multi-expert model for dialogue and behavior control of conversational robots and agents. Knowledge-Based Systems, Vol.24, Issue 2, pp.248–256, 2011. [doi]
Kazunori Komatani, Yuichiro Fukubayashi, Satoshi Ikeda, Tetsuya Ogata, Hiroshi G. Okuno: Selecting Help Messages by using Robust Grammar Verification for Handling Out-of-Grammar Utterances in Spoken Dialogue Systems. IEICE Transactions on Information and Systems, Vol.E93-D, No.12, pp.3359-3367, 2010. [doi]
Kazunori Komatani, Shinichi Ueno, Tatsuya Kawahara, Hiroshi G. Okuno: User Modeling in Spoken Dialogue Systems to Generate Flexible Guidance. User Modeling and User-Adapted Interaction, Vol.15, No.1, pp.169–183, 2005. [doi]
Ryu Takeda, Hokuto Munakata, Kazunori Komatani: Link Prediction Based on Large Language Model and Knowledge Graph Retrieval under Open-World and Resource-Restricted Environment. International Joint Conference on Knowledge Graphs (IJCKG 2023), (accepted), 2023. (Best Research Paper Award)
Hokuto Munakata, Ryu Takeda, Kazunori Komatani: Recursive Sound Source Separation with Deep Learning-based Beamforming for Unknown Number of Sources. Interspeech 2023, pp. 1688-1692, Aug. 20, 2023. [doi]
Ryu Takeda, Yui Sudo, Kazuhiro Nakadai and Kazunori Komatani: Empirical Sampling from Latent Utterance-wise Evidence Model for Missing Data ASR based on Neural Encoder-Decoder Model. Interspeech 2022, pp. 3789-3793, Sep. 22, 2022. [doi]
Hokuto Munakata, Ryu Takeda, Kazunori Komatani: Training Data Generation with DOA-based Selecting and Remixing for Unsupervised Training of Deep Separation Models. Interspeech 2022, pp. 861-865, Sep. 20, 2022. [doi]
Michimasa Inaba, Yuya Chiba, Ryuichiro Higashinaka, Kazunori Komatani, Yusuke Miyao, Takayuki Nagai: Collection and Analysis of Travel Agency Task Dialogues with Age-Diverse Speakers. Language Resources and Evaluation Conference (LREC), pp. 5759-5767, Jun. 21-23 (remote), 2022. [pdf]
Ryu Takeda, Kazunori Komatani: Age Estimation with Speech-age Model for Heterogeneous Speech Datasets. Interspeech 2021, pp.4164-4168, Sep. 3, 2021. [doi]
Kazunori Komatani, Yuma Fujioka, Keisuke Nakashima, Katsuhiko Hayashi, Mikio Nakano: Knowledge Graph Completion-based Question Selection for Acquiring Domain Knowledge through Dialogues. Annual Conference on Intelligent User Interfaces (IUI), pp.531-541, Apr. 15, 2021. [doi]
Shun Katada, Shogo Okada, Yuki Hirano, Kazunori Komatani: Is She Truly Enjoying the Conversation?: Analysis of Physiological Signals toward Adaptive Dialogue Systems. International Conference on Multimodal Interaction (ICMI), pp.315-323, Oct. 27, 2020. [doi]
Ryu Takeda, Kazunori Komatani: Frame-wise Online Unsupervised Adaptation of DNN-HMM Acoustic Model from Perspective of Robust Adaptive Filtering. Interspeech 2020, pp.1291-1295, Oct. 26, 2020. [doi]
Ryu Takeda, Kazunori Komatani, Alexander Rudnicky: Word Segmentation from Phoneme Sequences based on Pitman-Yor Semi-Markov Model Exploiting Subword Information. IEEE Workshop on Spoken Language Technology (SLT), pp.763-770, Dec. 20, 2018. [doi]
Shogo Okada, Kazunori Komatani: Investigating Effectiveness of Linguistic Features Based on Speech Recognition for Storytelling Skill Assessment. The 31st International Conference on Industrial, Engineering and Other Applications of Applied Intelligence Systems (IEA/AIE-2018), pp.148-157, Jun. 26, 2018. [paper]
Masahiro Araki, Sayaka Tomimasu, Mikio Nakano, Kazunori Komatani, Shogo Okada, Shinya Fujie, Hiroaki Sugiyama: Collection of Multimodal Dialog Data and Analysis of the Result of Annotation of Users’ Interests. Language Resources and Evaluation Conference (LREC), pp.1584-1588, May 10, 2018. [paper]
Ryu Takeda, Kazuhiro Nakadai, Kazunori Komatani: Node pruning based on Entropy of Weights and Node Activity for Small-footprint Acoustic Model based on Deep Neural Networks. Interspeech-2017, pp.1636-1640, Aug. 22, 2017. [doi]
Kohei Ono, Ryu Takeda, Eric Nichols, Mikio Nakano and Kazunori Komatani: Lexical Acquisition through Implicit Confirmations over Multiple Dialogues. 18th Annual SIGDIAL Meeting on Discourse and Dialogue, pp.50-59, Aug. 17, 2017. [doi]
Arisa Ema, Hirotaka Osawa, Hiromitsu Hattori, Naonori Akiya, Nobutsugu Kanzaki, Ryutaro Ichise, Minao Kukita, Takushi Otani, Akinori Kubo, Kazunori Komatani, Reina Saijo, Mikihito Tanaka, Koziro Honda, Naoki Miyano, Yoshimi Yashiro, Go Yoshizawa: Breaking Down Silos: Involving Various Researchers for Driving HCI Research. CHI Conference on Human Factors in Computing Systems, Extended Abstracts, pp.837-847, May. 9, 2017. [paper]
Ryu Takeda, Kazunori Komatani: Unsupervised Adaptation of Deep Neural Networks for Sound Source Localization using Entropy Minimization. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp.2217-2221, Mar. 7, 2017. [doi]
Ryu Takeda, Kazunori Komatani: Discriminative Multiple Sound Source Localization based on Deep Neural Networks using Independent Location Model. Proceedings of IEEE Workshop on Spoken Language Technology (SLT), pp.603-609, Dec. 16, 2016. [doi]
Ryu Takeda, Kazunori Komatani: Bayesian Language Model based on Mixture of Segmental Contexts for Spontaneous Utterances with Unexpected Words. Proceedings of International Conference on Computational Linguistics (COLING), pp.161-170, Dec. 13, 2016. [paper]
Kohei Ono, Ryu Takeda, Eric Nichols, Mikio Nakano and Kazunori Komatani: Toward Lexical Acquisition during Dialogues through Implicit Confirmation for Closed-Domain Chatbots. Proceedings of Second Workshop on Chatbots and Conversational Agent Technologies (WOCHAT), Sep. 20, 2016.
Tsugumi Otsuka, Kazunori Komatani, Satoshi Sato, Mikio Nakano: Generating More Specific Questions for Acquiring Attributes of Unknown Concepts from Users. 14th Annual SIGDIAL Meeting on Discourse and Dialogue, pp. 70–77, Aug. 22, 2013. [paper]
Kazunori Komatani, Shojiro Mori, Satoshi Sato: Constructing Language Models for Spoken Dialogue Systems from Keyword Set. The 26th International Conference on Industrial, Engineering and Other Applications of Applied Intelligence Systems (IEA/AIE-2013), Contemporary Challenges and solutions in Applied Artificial Intelligence, Studies in Computational Intelligence, Vol. 489, pp.69–76, Jun 19, 2013. [doi]
Kazunori Komatani, Akira Hirano, Mikio Nakano: Detecting System-directed Utterances using Dialogue-level Features. Interspeech-2012, pp. 230-233, Sep. 10, 2012. [PDF]
Kazunori Komatani, Kyoko Matsuyama, Ryu Takeda, Tetsuya Ogata, Hiroshi G. Okuno: Evaluation of Spoken Dialogue System that uses Utterance Timing to Interpret User Utterances. International Workshop on Spoken Dialogue Systems (IWSDS2011), pp.315–325, Sep. 2, 2011. [doi]
Mikio Nakano, Shun Sato, Kazunori Komatani, Kyoko Matsuyama, Kotaro Funakoshi, Hiroshi G. Okuno: A Two-Stage Domain Selection Framework for Extensible Multi-Domain Spoken Dialogue Systems. 12th Annual SIGDIAL Meeting on Discourse and Dialogue, pp.18–29, Jun. 17, 2011. [paper]
Kazunori Komatani, Hiroshi G. Okuno: Online Error Detection of Barge-In Utterances by Using Individual Users’ Utterance Histories in Spoken Dialogue System. 11th Annual SIGDIAL Meeting on Discourse and Dialogue, pp.289–296, Sep. 25, 2010. [PDF]
Kyoko Matsuyama, Kazunori Komatani, Ryu Takeda, Toru Takahashi, Tetsuya Ogata, Hiroshi G. Okuno: Analyzing User Utterances in Barge-in-able Spoken Dialogue System for Improving Identification Accuracy. Interspeech-2010, pp.3050–3053, Sep. 30, 2010. [PDF]
Kazunori Komatani, Masaki Katsumaru, Mikio Nakano, Kotaro Funakoshi, Tetsuya Ogata, Hiroshi G. Okuno: Automatic Allocation of Training Data for Rapid Prototyping of Speech Understanding based on Multiple Model Combination. The 23rd International Conference on Computational Linguistics (COLING-2010), Poster Volume, pp.579–587, Aug 27, 2010. [PDF]
Kyoko Matsuyama, Kazunori Komatani, Toru Takahashi, Tetsuya Ogata, Hiroshi G. Okuno: Improving Identification Accuracy by Extending Acceptable Utterances in Spoken Dialogue System Using Barge-in Timing. The 23rd International Conference on Industrial, Engineering and Other Applications of Applied Intelligence Systems (IEA/AIE-2010), LNAI 6097, pp.585–594, Jun 2, 2010.
Kazunori Komatani, Satoshi Ikeda, Yuichiro Fukubayashi, Tetsuya Ogata, Hiroshi G. Okuno: Ranking Help Message Candidates Based on Robust Grammar Verification Results and Utterance History in Spoken Dialogue Systems. 10th Annual SIGDIAL Meeting on Discourse and Dialogue, pp.314–321, Sep 12, 2009. [PDF]
Masaki Katsumaru, Mikio Nakano, Kazunori Komatani, Kotaro Funakoshi, Tetsuya Ogata, Hiroshi G. Okuno: Improving Speech Understanding Accuracy with Limited Training Data Using Multiple Language Models and Multiple Understanding Models. Interspeech-2009, pp.2735–2738, Sep 10, 2009. [PDF]
Kyoko Matsuyama, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: Enabling A User To Specify An Item At Any Time During System Enumeration. Interspeech-2009, pp.252–255, Sep 7, 2009. [PDF]
Kazunori Komatani, Alexander I. Rudnicky: Predicting Barge-in Utterance Errors by using Implicitly-Supervised ASR Accuracy and Barge-in Rate per User. ACL-IJCNLP 09, Short Papers, pp.89–92, Aug 4, 2009. [paper]
Kazunori Komatani, Tatsuya Kawahara, Hiroshi G. Okuno: A Model of Temporally Changing User Behaviors in a Deployed Spoken Dialogue System. International Conference on User Modeling, Adaptation, and Personalization (UMAP09), LNCS 5535, pp.409–414, Jun 23, 2009. [PDF][doi]
Masaki Katsumaru, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: Adjusting Occurrence Probabilities of Automatically-Generated Abbreviated Words in Spoken Dialogue Systems. The 22nd International Conference on Industrial, Engineering and Other Applications of Applied Intelligence Systems (IEA/AIE-2009), LNAI5579, pp.481–490, Jun 25, 2009. [PDF][doi]
Masaki Katsumaru, Mikio Nakano, Kazunori Komatani, Kotaro Funakoshi, Tetsuya Ogata, Hiroshi G. Okuno: A Speech Understanding Framework that Uses Multiple Language Models and Multiple Understanding Models. North American Chapter of the Association for Computational Linguistics – Human Language Technologies (NAACL-HLT), Short Papers, pp.133–136, Jun 1, 2009. [PDF]
Kazunori Komatani, Tatsuya Kawahara, Hiroshi G. Okuno: Predicting ASR Errors by Exploiting Barge-In Rate of Individual Users for Spoken Dialogue Systems. Interspeech-2008, pp.183–186, 2008. [PDF]
Masaki Katsumaru, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: Expanding Vocabulary for Recognizing User’s Abbreviations of Proper Nouns without Increasing ASR Error Rates in Spoken Dialogue Systems. Interspeech-2008, pp.187–190, 2008. [PDF]
Satoshi Ikeda, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: Extensibility Verification of Robust Domain Selection against Out-of-Grammar Utterances in Multi-Domain Spoken Dialogue System. Interspeech-2008, pp.487–490, 2008. [PDF]
Satoshi Ikeda, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: Integrating Topic Estimation and Dialogue History for Domain Selection in Multi-Domain Spoken Dialogue Systems. The 21st International Conference on Industrial, Engineering and Other Applications of Applied Intelligence Systems (IEA/AIE-2008), LNAI5027, pp.294–304, 2008. [doi]
Yuichiro Fukubayashi, Kazunori Komatani, Mikio Nakano, Kotaro Funakoshi, Hiroshi Tsujino, Tetsuya Ogata, Hiroshi G. Okuno: Rapid Prototyping of Robust Language Understanding Modules for Spoken Dialogue Systems. The Third International Joint Conference on Natural Language Processing (IJCNLP2008), pp.210–216, 2008. [PDF]
Kazunori Komatani, Yuichiro Fukubayashi, Tetsuya Ogata, Hiroshi G. Okuno: Introducing Utterance Verification in Spoken Dialogue System to Improve Dynamic Help Generation for Novice Users. 8th SIGdial Workshop on Discourse and Dialogue, pp.202–205, 2007. [PDF]
Kazunori Komatani, Tatsuya Kawahara, Hiroshi G. Okuno: Analyzing Temporal Transition of Real User’s Behaviors in a Spoken Dialogue System. Interspeech-2007, pp.142–145, 2007. [PDF]
Satoshi Ikeda, Kazunori Komatani, Tetsuya Ogata, Hiroshi G. Okuno: Topic Estimation with Domain Extensibility for Guiding User’s Out-of-Grammar Utterances in Multi-Domain Spoken Dialogue Systems. Interspeech-2007, pp.2561–2564, 2007. [PDF]
Kazunori Komatani, Naoyuki Kanda, Mikio Nakano, Kazuhiro Nakadai, Hiroshi Tsujino, Tetsuya Ogata, Hiroshi G. Okuno: Multi-Domain Spoken Dialogue System with Extensibility and Robustness against Speech Recognition Errors. 7th SIGdial Workshop on Discourse and Dialogue, pp.9–17, 2006. [paper]
Kazunori Komatani, Naoyuki Kanda, Tetsuya Ogata, Hiroshi G. Okuno: Contextual Constraints based on Dialogue Models in Database Search Task for Spoken Dialogue Systems The 9th European Conf. on Speech Communication and Technology (Eurospeech2005), pp. 877–880, 2005. [PDF]
Teruhisa Misu, Kazunori Komatani, Tatsuya Kawahara: Confirmation Strategy for Document Retrieval Systems with Spoken Dialog Interface. Int’l Conf. Spoken Language Processing (ICSLP2004), pp. 45–48, 2004.
Kazunori Komatani, Teruhisa Misu, Tatsuya Kawahara, Hiroshi G. Okuno: Efficient Confirmation Strategy for Large-scale Text Retrieval Systems with Spoken Dialogue Interface. Int’l Conf. Computational Linguistics (COLING2004), Vol. 2, pp.1100–1106, 2004. [PDF][doi]
Kazunori Komatani, Ryosuke Ito, Tatsuya Kawahara, Hiroshi G. Okuno: Recognition of Emotional States in Spoken Dialogue with a Robot. The 17th International Conference on Industrial and Engineering Applications of Artificial Intelligence and Expert Systems (IEA/AIE-2004), LNAI3029, pp.413–423, Springer-Verlag, 2004. [doi]
Kazunori Komatani, Shinichi Ueno, Tatsuya Kawahara, Hiroshi G. Okuno: User Modeling in Spoken Dialogue Systems for Flexible Guidance Generation. The 8th European Conf. on Speech Communication and Technology (Eurospeech2003), pp.745–748, 2003. [PDF]
Tatsuya Kawahara, Ryosuke Ito, Kazunori Komatani: Spoken Dialogue System for Queries on Appliance Manuals using Hierarchical Confirmation Strategy. The 8th European Conf. on Speech Communication and Technology (Eurospeech2003), pp.1701–1704, 2003. [PDF]
Kazunori Komatani, Shinichi Ueno, Tatsuya Kawahara, Hiroshi G. Okuno: Flexible Guidance Generation using User Model in Spoken Dialogue Systems. 41st Annual Meeting of the Association for Computational Linguistics (ACL2003), pp.256–263, 2003. [PDF][doi]
Yoji Kiyota, Sadao Kurohashi, Teruhisa Misu, Kazunori Komatani, Tatsuya Kawahara, Fuyuko Kido: “Dialog Navigator”: A Spoken Dialog Q-A System based on Large Text Knowledge Base. ACL03 Interactive Poster/Demo Session, pp.149–152 (Companion Volume), 2003. [PDF][doi]
Kazunori Komatani, Fumihiro Adachi, Shinichi Ueno, Tatsuya Kawahara, Hiroshi G. Okuno: Flexible Spoken Dialogue System based on User Models and Dynamic Generation of VoiceXML Scripts. 4th SIGdial Workshop on Discourse and Dialogue, pp.87–96, 2003.
Kazunori Komatani, Tatsuya Kawahara, Ryosuke Ito, Hiroshi G. Okuno: Efficient Dialogue Strategy to Find Users’ Intended Items from Information Query Results. Int’l Conf. Computational Linguistics (COLING2002), Vol. 1, pp.481–487, 2002. [PDF][doi]
Kazunori Komatani, Katsuaki Tanaka, Hiroaki Kashima, Tatsuya Kawahara: Domain-Independent Spoken Dialogue Platform using Key-Phrase Spotting based on Combined Language Model. The 7th European Conf. on Speech Communication and Technology (Eurospeech2001), pp. 1319–1322, 2001. [PDF]
Kazunori Komatani, Tatsuya Kawahara: Generating Effective Confirmation and Guidance using Two-level Confidence Measures for Dialogue Systems. Int’l Conf. Spoken Language Processing (ICSLP2000), Vol. 2, pp. 648–651, 2000. [PDF]
Tatsuya Kawahara, Kazunori Komatani, Shuji Doshita: Dialogue Management using Concept-level Confidence Measures of Speech Recognition. Int’l Sympo. on Spoken Dialogue (ISSD), 2000.
Kazunori Komatani, Tatsuya Kawahara: Flexible Mixed-Initiative Dialogue Management using Concept-Level Confidence Measures of Speech Recognizer Output. Int’l Conf. Computational Linguistics (COLING2000), Vol. 1, pp.467–473, 2000. PDF file.PS file(gzipped).[doi]
Masahiro Araki, Kazunori Komatani, Taishi Hirata, Shuji Doshita: A Dialogue Library for Task-oriented Spoken Dialogue Systems. IJCAI Workshop on Knowledge and Reasoning in Practical Dialogue Systems, pp.1–7, 1999. (Link)