Major publications in English
- Chang, F., Tatsumi, T., Hayakawa, H., Yoshizaki, M., & Oka, N. (2021). The Role of Parental Input in the Early Acquisition of Japanese Politeness Distinctions. Collabra: Psychology, 7(1). https://doi.org/10.1525/collabra.18989
- Ichikawa, J., Fujii, K., Nagai, T., Omori, T., & Oka, N. (2021). Quantitative analysis of spontaneous sociality in children’s group behavior during nursery activity. PLOS ONE, Vol. 16, No. 2, e0246041. https://doi.org/10.1371/journal.pone.0246041
- Haibin Xia, Bin Zhang, Tomoaki Nakamura, Takayuki Nagai, Takashi Omori, Masahide Kaneko, Rena Ushiogi, Natsuki Oka, and Hun-ok Lim (2020) User Behavior Tracking for Education Assisting System by Using an RGB-D Sensor. In: Liu Y., Wang L., Zhao L., Yu Z. (eds) Advances in Natural Computation, Fuzzy Systems and Knowledge Discovery. ICNC-FSKD 2019. Advances in Intelligent Systems and Computing, vol. 1075, pp. 923-931, Springer, Cham. https://doi.org/10.1007/978-3-030-32591-6_101
- Nakagawa Tsubasa, Oka Natsuki, Araki Masahiro, Oka Kaito, Estimating Human Attributes by Clustering Moving Histories in Commercial Facilities, RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2020 (NCSP’20), Hilton Waikiki Beach Hotel, Honolulu, Hawaii, February 28 - March 2, 2020.
- Oi Kazuki, Oka Natsuki, Araki Masahiro, Oka Kaito, Prediction of Future Locations Based on Moving Behavior Data in Commercial Facilities, RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2020 (NCSP’20), Hilton Waikiki Beach Hotel, Honolulu, Hawaii, February 28 - March 2, 2020.
- Ryo Matsumoto, Tomoaki Nakamura, Takayuki Nagai, Takashi Omori, and Natsuki Oka, Robust Human Trajectory Estimation Using Hidden Markov Models, RISP International Workshop on Nonlinear Circuits, Communications and Signal Processing 2020 (NCSP’20), Hilton Waikiki Beach Hotel, Honolulu, Hawaii, February 28 - March 2, 2020.
- Natsuki Oka, Yusuke Hatanaka, and Kazuaki Tanaka, Public acceptance of AI with responsibility and accountability, The 2nd International Symposium on Symbiotic Intelligent Systems: "Challenge to the Edge: How can we design symbiotic society?", 2020.
- Tsunekawa, M., Oka, N., Araki, M., Shintani, M., Yoshikawa, M., and Tanigawa, T., Prediction of the Onset of Lifestyle-related Diseases Using Regular Health Checkup Data, https://confit.atlas.jp/guide/event-img/jsai2019/4D3-E-2-05/public/pdf?type=in, the extended paper will be published in "Advances in Artificial Intelligence: Selected Papers from JSAI 2019" of the Springer Nature series Advances in Intelligent Systems and Computing.
- Ichikawa, J., Mitsukuni, K., Hori, Y., Ikeno, Y., Alexandre, L., Kawamoto, T., Nishizaki, Y., and Oka, N., Analysis of How Personality Traits Affect Children's Conversational Play with an Utterance-Output Device, 2019 Joint IEEE 9th International Conference on Development and Learning and Epigenetic Robotics (ICDL-EpiRob), Oslo, Norway, August 19-22, 2019.
- Matsushima, A., Kanajiri, R., Hattori, Y., Fukada, C., and Oka, N., Stepwise Acquisition of Dialogue Act Through Human-Robot Interaction, The 2019 International Joint Conference on Neural Networks (IJCNN), Budapest, Hungary, July 14-19, 2019. https://arxiv.org/abs/1810.09949
- Takahashi, T., Tanaka, K, and Oka, N. (to appear). Adaptive Mixed-Initiative Dialog Motivates a Game Player to Talk with an NPC. Proceedings of the 6th International Conference on Human-Agent Interaction. Southampton, United Kingdom, December 15–18, 2018 (HAI ’18), 8 pages. https://doi.org/10.1145/3284432.3284436
- Shinohara, Y., Mitsukuni, K., Yoneda, T., Ichikawa, J., Nishizaki, Y., and Oka, N. (to appear). A Humanoid Robot Can Use Mimicry to Increase Likability and Motivation for Helping. Proceedings of the 6th International Conference on Human-Agent Interaction. Southampton, United Kingdom, December 15–18, 2018 (HAI ’18), 7 pages. https://doi.org/10.1145/3284432.3284437
- Akane Matsushima, Natsuki Oka, Yusuke Hattori, Chie Fukada, Scaffolding for a Robot That Learns Reactions to Dialogue Acts, Proceedings of the 6th International Conference on Human-Agent Interaction. Southampton, United Kingdom. Dec. 15–18, 2018 (HAI’18), 3 pages. https://doi.org/10.1145/3284432.3287175
- Ichikawa, J., Fujii, K., Nagai, T., Omori T, and Oka, N., Quantitative analysis and visualization of children's group behavior from the perspective of development of spontaneity and sociality, Conference proceedings, CRIWG 2018, Part of the Lecture Notes in Computer Science book series (LNCS, volume 11001), Also part of the Information Systems and Applications, incl. Internet/Web, and HCI book sub series (LNISA, volume 11001).
- Nishizaki, Y., Hayakawa, H., and Oka, N., Soft tactile sensations improve human–robot interaction, The 3rd International Conference on Ambient Intelligence and Ergonomics in Asia, 4 pages, ORAL Presentation, 21-25 August, 2017.
- Shinohara, Y., Hayakawa, H., Oka, N., and Nishizaki, Y. How Can Agents Build Good Relationships with Human Beings? : Optimal Rate of Mimicry in Human-Agent Interaction, The 3rd International Conference on Ambient Intelligence and Ergonomics in Asia, 4 pages, ORAL Presentation, 21-25 August, 2017.
- Oka, N., Hattori, Y., Teraoka, K., and Fukada, C., Possible Mechanisms of the Yes Bias: Inquiry from the Data of Human-Robot Interaction Experiment, WILD 2017 - 3rd Workshop on Infant Language Development, p. 87, June 15th - 17th, 2017.
- Bin Zhang , Tomoaki Nakamura, Rena Ushiogi, Takayuki Nagai, Kasumi Abe, Takashi Omori, Natsuki Oka, and Masahide Kaneko, Robust Children Behavior Tracking for Childcare Assisting Robot by Using Multiple Kinect Sensors, Social Robotics: 8th International Conference, ICSR 2016, Kansas City, MO, USA, November 1-3, 2016 Proceedings, pp 640-649, 2016. Social Robotics, Volume 9979 of the series Lecture Notes in Computer Science, Springer International Publishing, Best Student Paper http://dx.doi.org/10.1007/978-3-319-47437-3_63
- Shinohara, Y., Kubo, K., Nozawa, M., Yoshizaki, M., Takahashi, T., Hayakawa, H., Hirota, A., Nishizaki, Y. and Oka, N., The Optimum Rate of Mimicry in Human-Agent Interaction, HAI 2016 Proceedings, pp.367-370, October 07, 2016, Biopolis, Singapore, ACM 978-1-4503-4508-8/16/10. http://dx.doi.org/10.1145/2974804.2980506
- Zhang, B., Nakamura, T., Ushiogi, R., Nagai, T., Abe, K., Omori, T., Oka, N. and Kaneko, M. (2016) Simultaneous Children Recognition and Tracking for Childcare Assisting System by Using Kinect Sensors. Journal of Signal and Information Processing, 7, 148-159. http://dx.doi.org/10.4236/jsip.2016.73015
- Hirota, A., Oka, N., Hayakawa, H. and Nishizaki, Y., Power Posing Affects Time Discounting, Poster Proceedings of the 1st International Symposium on Embodied-Brain Systems Science (EmboSS 2016), P31, May 8-9, 2016, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo.
- Atsushi Hirota, Shogo Furuhashi, Takashi Uchida, Yusuke Suetsugu, Eri Takashima, Toshimasa Takai, Misa Yoshizaki, Hirofumi Hayakawa, Yukiko Nishizaki, and Natsuki Oka, Keep Your Chin Up When You Want to Believe in Future Rewards: The Effect of Facial Direction on Discount Factors, poster presentation at the 3rd International Conference on Human-Agent Interaction (HAI 2015) to be held in Daegu, Republic of Korea, October 21-24, 2015. http://dl.acm.org/citation.cfm?doid=2814940.2814973
- Misa Yoshizaki, Toshimasa Takai, Eri Takashima, Yusuke Suetsugu, Atsushi Hirota, Shogo Furuhashi, Takashi Uchida, Hirofumi Hayakawa, Yukiko Nishizaki, and Natsuki Oka, Effect of Embodied Cognition on an Impression of a Robot, poster presentation at the 3rd International Conference on Human-Agent Interaction (HAI 2015) to be held in Daegu, Republic of Korea, October 21-24, 2015. http://dl.acm.org/citation.cfm?doid=2814940.2814972
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Takayuki Nagai, Kasumi Abe, Tomoaki Nakamura, Natsuki Oka, and Takashi Omori, Probabilistic Modeling of Mental Models of Others, the 24th IEEE International Symposium on Robot and Human Interactive Communication, (RO-MAN 2015, Aug 31 to Sept 3, 2015, Kobe International Conference Center, Kobe, Japan. http://dx.doi.org/10.1109/ROMAN.2015.7333635
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Natsuki Oka, Yusuke Hattori, Chie Fukada, and Motoyuki Ozeki, Why Did a Robot Tend to Say Yes to Yes-No Questions? Proceedings of the International Symposium on Pedagogical Machines, p. 28, March 28th-29th, 2015, The University of Tokyo, Tokyo, Japan.
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Kasumi Abe, Chie Hieida, Muhammad Attamimi, Takayuki Nagai, Takayuki Shimotomai, Takashi Omori, and Natsuki Oka. Toward Playmate Robots that can Play with Children Considering Personality, Proc. of the 2nd International Conference on Human-Agent Interaction, pp. 165-168, 2014. http://dx.doi.org/10.1145/2658861.2658913
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Yuichiro Tsuji, Ami Tsukamoto, Takashi Uchida, Yusuke Hattori, Ryosuke Nishida, Chie Fukada, Motoyuki Ozeki, Takashi Omori, Takayuki Nagai, and Natsuki Oka. Experimental Study of Empathy and Its Behavioral Indices in Human-Robot Interaction, Proc. of the 2nd International Conference on Human-Agent Interaction, pp. 245-248, 2014. http://dx.doi.org/10.1145/2658861.2658933
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Tatsuya SAKATO, Motoyuki OZEKI, and Natsuki OKA, Learning through Imitation and Reinforcement Learning: Toward the Acquisition of Painting Motions, Proc. of the 2nd International Symposium on Applied Computing & Information Technology, pp. 873-880, 2014. http://dx.doi.org/10.1109/IIAI-AAI.2014.174
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Tofig Hasanov, Motoyuki Ozeki and Natsuki Oka. Microcredit Risk Assessment using Crowdsourcing and Social Networks, Proceedings of the 15th IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, pp. 53-57, 2014. http://dx.doi.org/10.1109/SNPD.2014.6888682
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Takahiro Ogawa, Motoyuki Ozeki, Natsuki Oka, A Visual Attention Model Using Depth Information from the Point of Gaze, Proc. of 2014 International Workshop on Advanced Image Technology, 2014.
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Natsuki Oka, Xia Wu, Chie Fukada, and Motoyuki Ozeki, Concurrent Acquisition of the Meaning of Sentence-Final Particles and Nouns Through Human-Robot Interaction, M. Lee et al. (Eds.): ICONIP 2013, Part I, LNCS 8226, pp. 387-394. Springer, Heidelberg (2013).(pdf) http://dx.doi.org/10.1007/978-3-642-42054-2_48
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Tatsuya SAKATO, Motoyuki OZEKI, and Natsuki OKA, Learning Which Features to Imitate in a Painting Task, IIAI International Conference on Advanced Applied Informatics (IIAI AAI 2013), August 31 - September 4, 2013. DOI: 10.1109/IIAI-AAI.2013.74
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Natsuki Oka, Ryoma Ogami, Xia Wu, Chie Fukada, and Motoyuki Ozeki, Acquiring the Meaning of Sentence-Final Particles yo and ne Through Human-Robot Interaction, In Proceedings of the First International Conference on Human-Agent Interaction (iHAI 2013), I-1-4, 5 pages (2013). honorable mention paper
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Ryoko Shibata, Takatsugu Kojima, Motoyuki Ozeki, and Natsuki Oka, How does the continuous use of infant-directed speech to a robot influence the user?, In Proceedings of the First International Conference on Human-Agent Interaction (iHAI 2013), III-2-4, 4 pages (2013).
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Tatsuya SAKATO, Motoyuki OZEKI and Natsuki OKA (2013). A Computational Model of Imitation and Autonomous Behavior in Continuous Spaces. In R. Lee (Ed.), Studies in Computational Intelligence 492: Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (pp. 37-51). Switzerland: Springer.
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Xiang Zuo, Taisuke Sumii, Naoto Iwahashi, Mikio Nakano, Kotaro Funakoshi, and Natsuki Oka, Correcting Phoneme Recognition Errors in Learning Unknown Words through Speech Interaction, Speech Communication 55, 190-203. January 2013. 10.1016/j.specom.2012.08.008
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Araki Osamu, Fukada Chie, Ozeki Motoyuki and Oka Natsuki, A possible cause of the occurrence of the stepwise shape of word learning curves, The 14th International Conference on the Processing of East Asian Languages (ICPEAL 2012), p. 73, 2012.
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Tofig Hasanov, Ozeki Motoyuki, Oka Natsuki. Dynamic Decision Support Systems in a Multi-Agent Environment, 2012 IV International Conference "Problems of Cybernetics and Informatics" (PCI), pp.139-141, SEPTEMBER 12-14, 2012, BAKU, AZERBAIJAN.
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Shibata Ryoko, Kojima Takatsugu, Fukada Chie, Sato Kaori, Hashikura Yuki, Ozeki Motoyuki, and Oka Natsuki, Does Talking to a Robot in a High-Pitched Voice Create a Good Impression of the Robot? 13th ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD 2012), Kyoto, Japan, August 8-10, 2012.
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Tatsuya SAKATO, Motoyuki OZEKI and Natsuki OKA, A Computational Model of Imitation and Autonomous Behavior, 13th ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD 2012), Kyoto, Japan, August 8-10, 2012.
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Hasanov TOFIG, Motoyuki OZEKI, and Natsuki OKA, Self-Evolving Decision Support Systems in Multi-Agent Environment, 13th ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD 2012), Kyoto, Japan, August 8-10, 2012.
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Oka Natsuki, Nonoguchi Naohiro, Fukada Chie, & Ozeki Motoyuki (2012). Computational model of the meaning acquisition of sentence-final particles [Abstract]. In N. Miyake, D. Peebles, & R. P. Cooper (Eds.), Proceedings of the 34th Annual Conference of the Cognitive Science Society (p. NUMBER). Austin, TX: Cognitive Science Society.
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Shibata Ryoko, Kojima Takatsugu, Fukada Chie, Sato Kaori, Hashikura Yuki, Ozeki Motoyuki, and Oka Natsuki, Does Talking to a Robot in a High-Pitched Voice Strengthen an Attachment? [Abstract]. In N. Miyake, D. Peebles, & R. P. Cooper (Eds.), Proceedings of the 34th Annual Conference of the Cognitive Science Society (p. NUMBER). Austin, TX: Cognitive Science Society.
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Hasanov TOFIG, Natsuki OKA, and Motoyuki OZEKI, Dynamically Created Decision Support Systems in a Multi-Agent Environment, International Journal of Computer & Information Science (IJCIS) Volume 13, Number 1, pp. 19-26, 2012.
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Oka Natsuki, Honda Toru, Sakamoto Yuta, Yonei Shoji, Sakato Tatsuya, Ozeki
Motoyuki, A computational model of conscious and unconscious level processing:
Consciousness is module combinations formed on the fly, The 15th annual meeting
of the ASSC, P1-72, Kyoto, Japan, 2011. poster(pdf)
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M.Ozeki, Y.Kashiwag, M.Inoue, N.Oka, "Top-Down Visual Attention Control Based on
a Particle Filter for Human-Interactive Robots", Proceedings of 4th
International Conference on Human System Interaction, Yokohama, Japan, 19-21 May
2011.
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Xiang Zuo, Taisuke Sumii, Naoto Iwahashi, Kotaro Funakoshi, Mikio Nakano, and
Natsuki Oka, Correction of Phoneme Recognition Errors in Word Learning Through
Speech Interaction, IEEE Workshop on Spoken Language Technology (SLT 2010),
Berkeley, California, U.S.A., December 12-15, 2010.
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Xiang Zuo, Naoto Iwahashi, Kotaro Funakoshi, Mikio Nakano, Ryo Taguchi,
Shigeki Matsuda, Komei Sugiura and Natsuki Oka, Detecting Robot-Directed Speech
by Situated Understanding in Physical Interaction, Transactions of the Japanese
Society for Artificial Intelligence, Vol. 25, No. 6, pp.670-682 (2010) . (pdf)
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Xiang Zuo,
Naoto Iwahashi, Ryo Taguchi, Kotaro Funakoshi, Mikio Nakano, Shigeki Matsuda,
Komei Sugiura, and Natsuki Oka, Detecting Robot-Directed Speech by Situated
Understanding in Object Manipulation Tasks, 19th IEEE International Symposium on
Robot and Human Interactive Communication, Viareggio, Italy, September 12-15,
2010.
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Xiang Zuo, Naoto Iwahashi, Ryo Taguchi, Shigeki Matsuda, Komei Sugiura, Kotaro Funakoshi, Mikio Nakano,
and Natsuki Oka,
Robot-Directed Speech Detection Using Multimodal Semantic Confidence Based on Speech, Image,
and Motion,
Proceedings of the 35th International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2010),
Dallas, Texas, U.S.A., March 18, 2010.
- Kazuaki Tanaka, Motoyuki Ozeki, and Natsuki Oka,
The hesitation of a robot:
a delay in its motion increases learning efficiency and impresses humans as teachable,
Proceedings of the 5th ACM/IEEE International Conference on Human-Robot Interaction (HRI 2010),
pp. 189-190, 2010. (pdf) (wmv)
- Tanaka, K. and Oka, N., A robot that learns in stages utilizing scaffolds:
toward an active and long-term human-robot interaction, Proceedings of the
International Conference on Advances in Computer Entertainment Technology 2008,
pp. 195-198, 2008.
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Tanaka, K., Zuo, X., Sagano, Y., and Oka, N., Learning the Meaning of Action Commands Based on "No News Is Good News" Criterion, Proceedings of the Workshop on Multimodal Interfaces in Semantic Interaction, pp. 9-16, 2007.
(pdf)
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Komatsu, T., Utsunomiya, A., Suzuki, K., Ueda, K., Hiraki, K., and Oka, N. (2005). Experiments Toward a Mutual Adaptive Speech Interface That Adopts the Cognitive Features Humans Use for Communication and Induces and Exploits Users' Adaptations, International Journal of Human-Computer Interaction, vol. 18 No. 3, pp. 243-268.
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Oka, N. and Ozaki, M., A Platform for Education in 'Interaction Design for Adaptive Robots', Proceedings of the Fifth International Workshop on Epigenetic Robotics, pp. 147-148, 2005. (pdf)
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Oka, N., Nakafushiki, A. and Itoh, Y., Learning the Correspondence between Continuous Speeches and Motions, Proceedings of 2005 4th IEEE International Conference on Development and Learning, p. 202, 2005.
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Harui, K., Oka, N. and Yamada, Y., Distinguishing Intentional Actions from Accidental Actions, Proceedings of 2005 4th IEEE International Conference on Development and Learning, p. 169, 2005.
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Komatsu, T., Ohtsuka, S., Ueda, K., Komeda, T. and Oka, N., A Method for Estimating Whether a User is in Smooth Communication with an Interactive Agent in Human-Agent Interaction, M.
Gh. Negoita et al. (Eds.), Knowledge-Based Intelligent Information and Engineering Systems: 8th International Conference, KES 2004, LNAI 3213, pp. 371-377, 2004.
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Utsunomiya, A., Komatsu, T., Ueda, K. and Oka, N., A Meaning Acquisition Model Which Induces and Utilizes Human's Adaptation, M.
Gh. Negoita et al. (Eds.), Knowledge-Based Intelligent Information and Engineering Systems: 8th International Conference, KES 2004, LNAI 3213, pp. 378-384, 2004.
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Komatsu, T., Utsunomiya, A., Suzuki, K., Ueda, K., Hiraki, K. and Oka, N., A meaning acquisition model which recognizes user's speeches like a pet animal is doing, In Proceedings of the 2nd International Conference on Computational Intelligence, Robotics and Automation Systems (CIRAS2003), 2003.
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Morikawa, K. and Oka, N., Triface: The Interactions between Human, Robot, and Environment, Proceedings of the 2003 IEEE Workshop on Robot and Human Interactive Communication, pp. 187-192, 2003.
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Komatsu, T. Utsunomiya, A., Ueda, K. and Oka, N., Can You Communicate with Me?: An Experimental Design How Humans Regard Artificial Agents as Communication Partners, Proceedings of the 2003 IEEE Workshop on Robot and Human Interactive Communication, pp. 193-198, 2003.
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Komatsu, T. Utsunomiya, A., Suzuki, K., Ueda, K., Hiraki, K. and Oka, N., Toward a mutual adaptive interface: An Interface and a User Induce and Utilize the Partner's adaptation, V. Palade, R. J. Howlett, and L. C. Jain (Eds.): Knowledge-Based Intelligent Information and Engineering Systems: 7th International Conference, KES 2003, LNAI 2774, pp. 1101-1108, 2003.
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Komatsu, T. Utsunomiya, A., Suzuki, K., Ueda, K., Hiraki, K. and Oka, N., Toward a Mutual Adaptive Interface: An Interface Induces a User's Adaptation and Utilizes This Induced Adaptation, and Vice Versa, Proceedings of the 25th Annual Conference of the Cognitive Science Society, pp. 687-692, 2003.
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Komatsu, T., Utsunomiya, A., Suzuki, K., Ueda, K., Hiraki, K. and Oka, N., Toward a Mutual Adaptive Interface by Utilizing a User's Cognitive Features, Proceedings 2003 IEEE International Symposium on Computational Intelligence in Robotics and Automation, pp. 1102-1107, 2003.
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Ohigashi, Y., Omori, T., Morikawa, K., Oka, N., Acceleration of Game Learning with Prediction-based Reinforcement Learning: Toward the Emergence of Planning Behavior, O. Kaynak et al. (Eds.): ICANN/ICONIP 2003, LNCS 2714, pp. 786-793, 2003.
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Utsunomiya, A., Komatsu, T., Suzuki, K., Ueda, K., Hiraki, K., and Oka, N., Construction of Meaning Acquisition Model Using Prosodic Information: Toward a Smooth Human-Agent Interaction, Proceedings of 10th International Conference on Human-Computer Interaction, Part 2, pp.543-547, 2003.
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Tohyama, S., Omori, T., Oka, N., and Morikawa, K., Identification and Learning of Other's Action Strategies in Cooperative Task, Proceedings of the Eighth International Symposium on Artificial Life and Robotics, pp. 40-43, 2003.
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Komatsu, T., Suzuki, K., Ueda, K., Hiraki, K. and Oka, N., Construction of a Meaning Acquisition Model: From the Perspective of Human-Human Interaction, Proceedings of International Workshop on Intelligent Media Technology for Communicative Reality, pp. 55-60, 2002.
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Komatsu, T., Suzuki, K., Ueda, K., Hiraki, K. and Oka, N., Mutual Adaptive Meaning Acquisition by Paralanguage Information: Experimental Analysis of Communication Establishing Process, Proceedings of the 24th Annual Conference of the Cognitive Science Society, pp. 548-553, 2002.
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Komatsu, T., Suzuki, K., Ueda, K., Hiraki, K. and Oka, N., What Is Important for Realizing an Autonomous Interactive Robot?, Proceedings of the 7th International Conference on the Simulation of Adaptive Behavior, pp. 139-140, 2002.
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Oka, N. Apparent "Free Will" Caused by Representation of Module Control, No Matter, Never Mind. Proceedings of Toward a Science of Consciousness: Fundamental Approaches, pp. 243-249, 2002.
(pdf)
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Komatsu, T., Suzuki, K., Hiraki, K., Ueda, K, and Oka, N., Analysis of Speech/Action-Based Communication: In Terms of Mutual Adaptation and Prosodic Effects, Proceedings of the Third International Conference on Cognitive Science, pp. 143-147, 2001.
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Oka, N., Morikawa, K., Komatsu, T., Suzuki, K., Hiraki, K., Ueda, K., Omori, T., Embodiment without a Physical Body, Workshop on Developmental Embodied Cognition (DECO-2001), pp.48-52, 2001.
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Morikawa, K., Oka, N. and Agarwal, S., An Experimental Platform for Analyzing Interaction Between Human, Machine and Environment, Proceedings of the Sixth International Symposium on Artificial Life and Robotics, pp. 188-191, 2001.
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Oka, N. and Morikawa, K., Toward a system that develops through interaction with its environment and caregivers, Proceedings of the International Conference on Artificial Intelligence in Science & Technology, pp. 140-145, 2000.
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Hirahara, M., Oka, N., and Kindo, T., Cascade Associative Memory Storing Hierarchically Correlated Patterns with Various Correlations, Neural Networks, Vol. 13, No. 1, pp. 51-60, 2000.
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Hirahara, M., Oka, N., and Kindo, T., A Cascade Associative Memory Model With a Hierarchical Memory Structure, Neural Networks, Vol. 13, No. 1, pp. 41-50, 2000.
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Oka, N., Conscious Level Processing by Dynamic Combination of Neural Network Modules, Proceedings of the 2nd International Conference on Cognitive Science, pp. 195-200, 1999.
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Oka, N. and Yoshida, K., A Noise-Tolerant Hybrid Model of a Global and a Local Learning Module, Behaviormetrika, Vol.26, No.1, pp. 129-143, 1999.
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Hirahara, M., Oka, N., and Kindo, T., Associative Memory with a Sparse Encoding Mechanism for Storing Correlated Patterns, Neural Networks, Vol. 10, No. 9, pp. 1627-1636, 1997.
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Hirahara, M., Oka, N., and Yoshida, K. Automatic placement using static and dynamic groupings, Engineering Design & Automation, Vol. 3, No. 2, 167-178, 1997.
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Oka, N. and Kindo, T., Inserting, Refining and
Extracting Symbolic Information into, by and from a Neural Network of
Normalized Local Basis Functions, Collection of Poster Abstracts
of the Fifteenth International Joint Conference on Artificial
Intelligence (IJCAI-97), p. 80, Nagoya Congress Center, Nagoya,
Japan, 1997.
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Oka, N., Consciousness without Central Control,
The Fourth International Workshop on the Frontier of
Telecommunications Technology: Brain, Computer, Evolution, Ministry
of Posts and Telecommunications, Japan, 1996.
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Oka, N. and Yoshida, K.,
A Noise-Tolerant Hybrid
Model of a Global and a Local Learning Module, AAAI-96 Workshop:
Integrating Multiple Learned Models for Improving and Scaling Machine
Learning Algorithms, pp. 95-100, 1996.
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Oka, N. and Kindo, T., Extracting Symbolic
Information from Normalized Radial Basis Neural Networks,
Proceedings of the Information Integration Workshop: Beyond Divide and
Conquer Strategy, RWC Technical Report (TR-95010), pp. 54-62, Real
World Computing Partnership, Tsukuba, Ibaraki, Japan, 1995.
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Oka, N. and Yoshida, K., Learning Regular and
Irregular Examples Separately, Proceedings of 1993 International
Joint Conference on Neural Networks, pp. 171-174, 1993.
- Oka, N., Hybrid Cognitive Model of Conscious Level
Processing and Unconscious Level Processing, 1991 IEEE
International Joint Conference on Neural Networks (IJCNN '91
Singapore), pp. 485-490, 1991.
Major publications in Japanese
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