Natsuki Oka

According to our database, Natsuki Oka authored at least 51 papers between 1996 and 2024.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2024

Exploring Interest Similarity Features and Their Combinations for Friendship Recommendation Without Cold Start.

Ana Beatriz Pires Quelhas, Natsuki Oka, Kazuaki Tanaka

Proceedings of the Collaboration Technologies and Social Computing, 2024

2022

Construction and Evaluation of a Self-Attention Model for Semantic Understanding of Sentence-Final Particles.

Shuhei Mandokoro, Natsuki Oka, Akane Matsushima, Chie Fukada, Yuko Yoshimura, Koji Kawahara, Kazuaki Tanaka

CoRR, 2022

2021

Estimating Children's Intrinsic Motivation During a Class Based on Face Orientation and Gaze Information.

Keisuke Morita, Natsuki Oka, Kazuaki Tanaka, Masahiro Miyata, Takashi Omori

Proceedings of the Advances in Artificial Intelligence, 2021

Automatic Utterance Selection Based on Prosodic Features of Children's Vocalizations.

Yuki Kubo, Natsuki Oka, Subaru Hanada, Kazuaki Tanaka, Tomomi Takahashi

Proceedings of the Advances in Artificial Intelligence, 2021

Robot Mediated Handholding Combined with a Mobile Video Call Makes the Users Feel Nearer and Closer.

Kazuaki Tanaka, Reo Mayuzumi, Tomomi Takahashi, Sho Takaki, Natsuki Oka

Proceedings of the HAI '21: International Conference on Human-Agent Interaction, Virtual Event, Japan, November 9, 2021

Melodic Emotional Expression Increases Ease of Talking to Spoken Dialog Agents.

Tomomi Takahashi, Kazuaki Tanaka, Kenichiro Kobayashi, Natsuki Oka

Proceedings of the HAI '21: International Conference on Human-Agent Interaction, Virtual Event, Japan, November 9, 2021

2019

Prediction of Onset of Lifestyle-Related Diseases Using Regular Health Checkup Data.

Mitsuru Tsunekawa, Natsuki Oka, Masahiro Araki, Motoshi Shintani, Masataka Yoshikawa, Takeshi Tanigawa

Proceedings of the Advances in Artificial Intelligence, 2019

Stepwise Acquisition of Dialogue Act Through Human-Robot Interaction.

Akane Matsushima, Ryosuke Kanajiri, Yusuke Hattori, Chie Fukada, Natsuki Oka

Proceedings of the International Joint Conference on Neural Networks, 2019

User Behavior Tracking for Education Assisting System by Using an RGB-D Sensor.

Haibin Xia, Bin Zhang, Tomoaki Nakamura, Takayuki Nagai, Takashi Omori, Masahide Kaneko, Rena Ushiogi, Natsuki Oka, Hun-ok Lim

Proceedings of the Advances in Natural Computation, Fuzzy Systems and Knowledge Discovery - Proceedings of the 15th International Conference on Natural Computation, Fuzzy Systems and Knowledge Discovery (ICNC-FSKD 2019), Kunming, China, July 20-22, 2019, 2019

Analysis of How Personality Traits Affect Children's Conversational Play with an Utterance-Output Device.

Jun Ichikawa, Kazuhiro Mitsukuni, Yukari Hori, Yuta Ikeno, Leblanc Alexandre, Tetsukazu Kawamoto, Yukiko Nishizaki, Natsuki Oka

Proceedings of the Joint IEEE 9th International Conference on Development and Learning and Epigenetic Robotics, 2019

Analysis of the Influence of Mothers' Traits and Behaviors on Children's Conversational Play with an Utterance-Output Device.

Kazuhiro Mitsukuni, Jun Ichikawa, Yukari Hori, Yuta Ikeno, Leblanc Alexandre, Tetsukazu Kawamoto, Natsuki Oka, Yukiko Nishizaki

Proceedings of the 7th International Conference on Human-Agent Interaction, 2019

Understanding Dialogue Acts by Bayesian Inference and Reinforcement Learning.

Akane Matsushima, Natsuki Oka, Chie Fukada, Kazuaki Tanaka

Proceedings of the 7th International Conference on Human-Agent Interaction, 2019

Sales Talk of a Robot at a Flanking Position Gives Positive Impressions to a Human Customer.

Shoto Fukui, Mia Hamada, Taiki Kusano, Shohei Kodera, Rikimaru Tanigo, Kazuaki Tanaka, Natsuki Oka, Yukiko Nishizaki

Proceedings of the 7th International Conference on Human-Agent Interaction, 2019

2018

Adaptive Mixed-Initiative Dialog Motivates a Game Player to Talk with an NPC.

Tomomi Takahashi, Kazuaki Tanaka, Natsuki Oka

Proceedings of the 6th International Conference on Human-Agent Interaction, 2018

A Humanoid Robot Can Use Mimicry to Increase Likability and Motivation for Helping.

Yumiko Shinohara, Kazuhiro Mitsukuni, Takayuki Yoneda, Jun Ichikawa, Yukiko Nishizaki, Natsuki Oka

Proceedings of the 6th International Conference on Human-Agent Interaction, 2018

Scaffolding for a Robot That Learns Reactions to Dialogue Acts.

Akane Matsushima, Natsuki Oka, Yusuke Hattori, Chie Fukada

Proceedings of the 6th International Conference on Human-Agent Interaction, 2018

Quantitative Analysis and Visualization of Children's Group Behavior from the Perspective of Development of Spontaneity and Sociality.

Jun Ichikawa, Keisuke Fujii, Takayuki Nagai, Takashi Omori, Natsuki Oka

Proceedings of the Collaboration and Technology - 24th International Conference, 2018

2017

Classifying Helmeted and Non-helmeted Motorcyclists.

Atsushi Hirota, Nguyen Huy Tiep, Le Van Khanh, Natsuki Oka

Proceedings of the Advances in Neural Networks - ISNN 2017 - 14th International Symposium, 2017

2016

Robust Children Behavior Tracking for Childcare Assisting Robot by Using Multiple Kinect Sensors.

Bin Zhang, Tomoaki Nakamura, Rena Ushiogi, Takayuki Nagai, Kasumi Abe, Takashi Omori, Natsuki Oka, Masahide Kaneko

Proceedings of the Social Robotics - 8th International Conference, 2016

The Optimum Rate of Mimicry in Human-Agent Interaction.

Yumiko Shinohara, Katsuhiro Kubo, Momoyo Nozawa, Misa Yoshizaki, Tomomi Takahashi, Hirofumi Hayakawa, Atsushi Hirota, Yukiko Nishizaki, Natsuki Oka

Proceedings of the Fourth International Conference on Human Agent Interaction, 2016

2015

Probabilistic modeling of mental models of others.

Takayuki Nagai, Kasumi Abe, Tomoaki Nakamura, Natsuki Oka, Takashi Omori

Proceedings of the 24th IEEE International Symposium on Robot and Human Interactive Communication, 2015

Effect of Embodied Cognition on an Impression of a Robot.

Misa Yoshizaki, Toshimasa Takai, Eri Takashima, Yusuke Suetsugu, Atsushi Hirota, Shogo Furuhashi, Takashi Uchida, Hirofumi Hayakawa, Yukiko Nishizaki, Natsuki Oka

Proceedings of the 3rd International Conference on Human-Agent Interaction, 2015

Keep Your Chin Up When You Want to Believe in Future Rewards: The Effect of Facial Direction on Discount Factors.

Atsushi Hirota, Shogo Furuhashi, Takashi Uchida, Yusuke Suetsugu, Eri Takashima, Toshimasa Takai, Misa Yoshizaki, Hirofumi Hayakawa, Yukiko Nishizaki, Natsuki Oka

Proceedings of the 3rd International Conference on Human-Agent Interaction, 2015

2014

Microcredit risk assessment using crowdsourcing and social networks.

Tofig Hasanov, Motoyuki Ozeki, Natsuki Oka

Proceedings of the 15th IEEE/ACIS International Conference on Software Engineering, 2014

Learning through Imitation and Reinforcement Learning: Toward the Acquisition of Painting Motions.

Tatsuya Sakato, Motoyuki Ozeki, Natsuki Oka

Proceedings of the IIAI 3rd International Conference on Advanced Applied Informatics, 2014

Experimental study of empathy and its behavioral indices in human-robot interaction.

Yuichiro Tsuji, Ami Tsukamoto, Takashi Uchida, Yusuke Hattori, Ryosuke Nishida, Chie Fukada, Motoyuki Ozeki, Takashi Omori, Takayuki Nagai, Natsuki Oka

Proceedings of the second international conference on Human-agent interaction, 2014

Toward playmate robots that can play with children considering personality.

Kasumi Abe, Chie Hieida, Muhammad Attamimi, Takayuki Nagai, Takayuki Shimotomai, Takashi Omori, Natsuki Oka

Proceedings of the second international conference on Human-agent interaction, 2014

2013

Correcting phoneme recognition errors in learning word pronunciation through speech interaction.

Xiang Zuo, Taisuke Sumii, Naoto Iwahashi, Mikio Nakano, Kotaro Funakoshi, Natsuki Oka

Speech Commun., 2013

Learning Which Features to Imitate in a Painting Task.

Tatsuya Sakato, Motoyuki Ozeki, Natsuki Oka

Proceedings of the 2013 Second IIAI International Conference on Advanced Applied Informatics, 2013

Concurrent Acquisition of the Meaning of Sentence-Final Particles and Nouns Through Human-Robot Interaction.

Natsuki Oka, Xia Wu, Chie Fukada, Motoyuki Ozeki

Proceedings of the Neural Information Processing - 20th International Conference, 2013

2012

Self-Evolving Decision Support Systems in Multi-agent Environment.

Hasanov Tofig, Motoyuki Ozeki, Natsuki Oka

Proceedings of the 13th ACIS International Conference on Software Engineering, 2012

Does Talking to a Robot in a High-Pitched Voice Create a Good Impression of the Robot?

Ryoko Shibata, Chie Fukada, Takatsugu Kojima, Kaori Sato, Yuki Hashikura, Motoyuki Ozeki, Natsuki Oka

Proceedings of the 13th ACIS International Conference on Software Engineering, 2012

A Computational Model of Imitation and Autonomous Behavior.

Tatsuya Sakato, Motoyuki Ozeki, Natsuki Oka

Proceedings of the 13th ACIS International Conference on Software Engineering, 2012

Does Talking to a Robot in a High-Pitched Voice Strengthen an Attachment?

Ryoko Shibata, Takatsugu Kojima, Chie Fukada, Kaori Sato, Yuki Hachikura, Motoyuki Ozeki, Natsuki Oka

Proceedings of the 34th Annual Meeting of the Cognitive Science Society, 2012

Computational model of the meaning acquisition of sentence-final particles.

Natsuki Oka, Naohiro Nonoguchi, Chie Fukada, Motoyuki Ozeki

Proceedings of the 34th Annual Meeting of the Cognitive Science Society, 2012

2010

Detecting Robot-Directed Speech by Situated Understanding in Physical Interaction.

Xiang Zuo, Naoto Iwahashi, Kotaro Funakoshi, Mikio Nakano, Ryo Taguchi, Shigeki Matsuda, Komei Sugiura, Natsuki Oka

Inf. Media Technol., 2010

Correction of phoneme recognition errors in word learning through speech interaction.

Xiang Zuo, Taisuke Sumii, Naoto Iwahashi, Kotaro Funakoshi, Mikio Nakano, Natsuki Oka

Proceedings of the 2010 IEEE Spoken Language Technology Workshop, 2010

Detecting robot-directed speech by situated understanding in object manipulation tasks.

Xiang Zuo, Naoto Iwahashi, Ryo Taguchi, Kotaro Funakoshi, Mikio Nakano, Shigeki Matsuda, Komei Sugiura, Natsuki Oka

Proceedings of the 19th IEEE International Conference on Robot and Human Interactive Communication, 2010

Robot-directed speech detection using Multimodal Semantic Confidence based on speech, image, and motion.

Xiang Zuo, Naoto Iwahashi, Ryo Taguchi, Shigeki Matsuda, Komei Sugiura, Kotaro Funakoshi, Mikio Nakano, Natsuki Oka

Proceedings of the IEEE International Conference on Acoustics, 2010

The hesitation of a robot: a delay in its motion increases learning efficiency and impresses humans as teachable.

Kazuaki Tanaka, Motoyuki Ozeki, Natsuki Oka

Proceedings of the 5th ACM/IEEE International Conference on Human Robot Interaction, 2010

2008

A robot that learns in stages utilizing scaffolds: toward an active and long-term human-robot interaction.

Kazuaki Tanaka, Natsuki Oka

Proceedings of the International Conference on Advances in Computer Entertainment Technology, 2008

2005

Experiments Toward a Mutual Adaptive Speech Interface That Adopts the Cognitive Features Humans Use for Communication and Induces and Exploits Users' Adaptations.

Takanori Komatsu, Atsushi Utsunomiya, Kentaro Suzuki, Kazuhiro Ueda, Kazuo Hiraki, Natsuki Oka

Int. J. Hum. Comput. Interact., 2005

2004

A Meaning Acquisition Model Which Induces and Utilizes Human's Adaptation.

Atsushi Utsunomiya, Takanori Komatsu, Kazuhiro Ueda, Natsuki Oka

Proceedings of the Knowledge-Based Intelligent Information and Engineering Systems, 2004

A Method for Estimating Whether a User is in Smooth Communication with an Interactive Agent in Human-Agent Interaction.

Takanori Komatsu, Shoichiro Ohtsuka, Kazuhiro Ueda, Takashi Komeda, Natsuki Oka

Proceedings of the Knowledge-Based Intelligent Information and Engineering Systems, 2004

2003

Toward a Mutual Adaptive Interface: An Interface and a User Induce and Utilize the Partner's Adaptation.

Takanori Komatsu, Atsushi Utsunomiya, Kentaro Suzuki, Kazuhiro Ueda, Kazuo Hiraki, Natsuki Oka

Proceedings of the Knowledge-Based Intelligent Information and Engineering Systems, 2003

Acceleration of Game Learning with Prediction-Based Reinforcement Learning - Toward the Emergence of Planning Behavior.

Yu Ohigashi, Takashi Omori, Koji Morikawa, Natsuki Oka

Proceedings of the Artificial Neural Networks and Neural Information Processing, 2003

Toward a mutual adaptive interface by utilizing a user's cognitive features.

Takanori Komatsu, Atsushi Utsunomiya, Kentaro Suzuki, Kazuhiro Ueda, Kazuo Hiraki, Natsuki Oka

Proceedings of the IEEE International Symposium on Computational Intelligence in Robotics and Automation: Computational Intelligence in Robotics and Automation for the New Millennium, 2003

2000

Cascade associative memory storing hierarchically correlated patterns with various correlations.

Makoto Hirahara, Natsuki Oka, Toshiki Kindo

Neural Networks, 2000

A cascade associative memory model with a hierarchical memory structure.

Makoto Hirahara, Natsuki Oka, Toshiki Kindo

Neural Networks, 2000

1997

Associative memory with a sparse encoding mechanism for storing correlated patterns.

Makoto Hirahara, Natsuki Oka, Toshiki Kindo

Neural Networks, 1997

1996

Automatic Placement Using Static and Dynamic Groupings.

Makoto Hirahara, Natsuki Oka, Kunio Yoshida

Proceedings of the Industrial and Engineering Applications of Artificial Intelligence and Expert Systems, 1996