1. Ryosuke Mayumi, Naoki Ohshima, and Michio Okada: Pocketable- Bones: A Portable Robot Sharing Interests with User in the Breast Pocket. In Proceedings of the 7th International Conference on Human-Agent Interaction (HAI ’19), October 6-10, 2019, Kyoto, Japan.

2. Komei Hasegawa and Michio Okada: Mako-no-te: Investigating Intersubjectivity with Side-by-Side Walking Robot. In Proceedings of the 7th international conference on Human-Agent Interaction (HAI ’19), October 6-10, 2019, Kyoto, Japan.

3. Shinpei Onoda, Yusaku Nishiwaki, and Michio Okada: Interaction Design and Field Study of a Forgetful Social Robot, “Talking-Bones”. In Proceedings of 7th International Conference on Human-Agent Interaction (HAI ’19), Oct. 6–10,2019, Kyoto, Japan.

4. Karatas Nihan, Tamura Shotaro, Fushiki Momoko and Okada Michio: The Effects of Driving Agent Gaze Following Behaviors on Human-Autonomous Car Interaction. In Ge S. et al. (eds) Social Robotics. ICSR 2018. Lecture Notes in Computer Science, Vol. 11357, pp 541-550, Springer (2018).

5. Nishiwaki Yusaku and Itashiki Sho and Karatas Nihan and Okada Michio: Cooperative Interactions Generated by Incompleteness in Robots’ Utterance, In Proceedings of the 6th International Conference on Human-Agent Interaction (HAI-2018), pp. 76-83 (2018).

6. Karatas Nihan, Tamura Shotaro, Fushiki Momoko and Okada Michio: Multi-party Conversation of Driving Agents: The Effects of Overhearing Information on Lifelikeness and Distraction. In Proceedings of the 6th International Conference on Human-Agent Interaction (HAI-2018), pp. 84-91 (2018).

7. Nihan Karatas, Soshi Yoshikawa, Shintaro Tamura, Sho Otaki, Ryuji Funayama and Michio Okada: Sociable Driving Agents to Maintain Driver’s Attention in Autonomous Driving, In Proceedings of the 26th IEEE International Symposium on Robot and Human Interactive Communication (RO-MAN 2017),Lisbon (2017).

8. Masato Kagawa, Nihan Karatas, Michio Okada:Communication Fundamentals within a Triadic Interaction in a Cooperative Play Mediated by INAMO, In Proceedings of 5th International Conference on Human-Agent Interaction (HAI), pp.491-494 (2017).

9. Marlena. R. Fraune, Yusaku Nishiwaki, Selma Šabanović, Eliot R. Smith and Michio Okada: Threatening Flocks and Mindful Snowflakes: How Group Entitativity Affects Perceptions of Robots, In Proceedings of the 12th ACM/IEEE International Conference on Human-Robot Interaction (HRI2017), pp.205–213 (2017).

10. Yusaku Nishiwaki, Masugi Furukawa, Soshi Yoshikawa, Nihan Karatas and Michio Okada: iBones: A Weak Robot to Construct Mutual Coordination for Handing Out Tissue Packs, In Proceedings of the 12th ACM/IEEE International Conference on Human-Robot Interaction (HRI2017), p.413 (2017).

11. Takeo Hamada, Michio Okada, and Michiteru Kitazaki: Jogging with a Virtual Runner using a See-Through HMD, In Proceedings of 2017 IEEE Virtual Reality (VR), pp.445–446 (2017).

12. Marlena Fraune, Yusaku Nishiwaki, Selma Sabanovic, Eliot Smith and Michio Okada: How Group Entitativity affects Perceptions of Robots, In Proceedings of 89th Annual Meeting of the Midwestern Psychological Association (2017).

13. Nihan Karatas, Soshi Yoshikawa and Michio Okada: NAMIDA: Sociable Driving Agents with Multiparty Conversation, In Proceedings of the Fourth International Conference on Human- Agent Interaction (HAI 2016), MT2-02, (2016).

14. Nihan Karatas & Michio Okada: An Overview of Sociable Robots in Multi-Party Interaction, In Workshop Proceedings on Group in HRI, In Proceedings of IEEE International Workshop on Robot and Human Interactive Communication (RO-MAN 2016), (2016).

15. Soshi Yoshikawa, Nihan Kataras, Michio Okada, Keiko Shimazaki, Chihiro Sannomiya and Kazunari Nawa: A Social Robot Platform for Personalized Interactive Companions, Robot Design Competition, In Proceedings of International Conference on Social Robotics (ICSR 2016), (2016).

16. Youssef Khaoula, Jaap Ham and Michio Okada: Investigating the Differences in Effects of the Persuasive Message’s Timing during Science Learning to Overcome the Cognitive Dissonance, In Proceedings of International Conference on Social Robotics (ICSR 2016), pp.104-114 (2016).

17. Youssef Khaoula, Jaap Ham and Michio Okada: Investigating the Effects of the Persuasive Source’s Social Agency Level and the Student’s Profile to Overcome the Cognitive Dissonance, In Proceedings of International Conference on Social Robotics (ICSR 2016), pp.115-125(2016).

18. Nihan Karatas, Soshi Yoshikawa, P. Ravindra De Silva, Michio Okada: NAMIDA: How to Reduce the Cognitive Workload of Driver, In Proceedings of the 11th ACM/IEEE International Conference on Human-Robot Interaction (HRI2016), pp. 449-450, (2016).

19. Yasutaka Takeda, Shotaro Baba, P. Ravindra S De Silva, and Michio Okada: COLUMN: Discovering the User Invented Behaviors through the Interpersonal Coordination, In Proceedings of the 17th International Conference on Human-Computer Interaction (HCII 2015), pp. 787-796, (2015).

20. Nihan Karatas, Soshi Yoshikawa, P. Ravindra S. De Silva and Michio Okada: NAMIDA: Multiparty Conversation Based Driving Agents in Futuristic Vehicle, In Proceedings of the 17th International Conference on Human-Computer Interaction (HCII 2014), pp. 198-207, (2015).

21. Marlena R. Fraune, Satoru Kawakami, P. Ravindra S De Silva, Michio Okada, Selma Sabanovic: Three’s company, or a crowd?: The effects of robot number and behavior on HRI in Japan and the USA, In Proceedings of International Conference on Robotics Science and System (RSS2015), (2015).

22. Hitomi Matsushita, Yohei Kurata, P. Ravindra S De Silva, and Michio Okada: Talking-Ally: What is the Future of Robot’s Utterance Generation? In Proceedings of the 24th IEEE International Symposium on Robot and Human Interactive Communication (RO-MAN 2015), pp. 291-296, (2015).

23. Youssef Khaoula, P. Ravindra S De Silva and Michio Okada: SDT: Maintaining the Communication Protocol through Mixed Feedback Strategies, In Proceedings of International Conference on Social Robotics (ICSR2015), pp. 348-358, (2015).

24. Youssef Khaoula, P. Ravindra S De Silva and Michio Okada: Exploring the Four Social Bonds Evolvement for an Accompanying Minimally Designed Robot, In Proceedings of International Conference on Social Robotics (ICSR2015), pp. 337-347, (2015).

25. Youssef Khaoula, Naoki Ohshima, P. Ravindra S. De Silva and Michio Okada: Concepts and Applications of Human-dependent Robots, In Proceedings of the 16th International Conference on Human-Computer Interaction (HCII 2014), Part II, pp. 435-444 (2014).

26. Nihan Karatas, Nozomi Kina, Daiki Tanaka, Naoki Ohshima, Ravindra De Silva, Michio Okada: Designing Sociable CULOT as a Playground Character, In Proceedings of the 16th International Conference on Human-Computer Interaction (HCII 2014), Part II, pp. 571-580 (2014).

27. Youssef Khaoula, Asano Takahiro, P. Ravindra S. De Silva and Michio Okada: Investigating the Mutual Adaptation Process to build up the Protocol of Communication, In Proceedings of the 16th International Conference on Human-Computer Interaction (HCII 2014), Part II, pp. 571-576 (2014).

28. Khaoula Youssef, P. Ravindra S. De Silva, Michio Okada: Sociable Dining Table: Incremental Meaning Acquisition Based on Mutual Adaptation Process, In Proceedings of Sixth International Conference on Social Robotics (ICSR2014), pp.196-205 (2014).

29. Khaoula Youssef, Kouki Yamagiwa, P. Ravindra S. De Silva, Michio Okada: ROBOMO: Towards an Accompanying Mobile Robot, In Proceedings of Sixth International Conference on Social Robotics (ICSR2014), PP.206-216 (2014).

30. Yasutaka Takeda, Kohei Yoshida, Shotaro Baba, P. Ravindra S De Silva, Michio Okada: COLUMN: Coreless Unformed Machine, In Workshop Proceedings on Robots and Art (Misbehaving Machine) at ICSR2014 (2014).

31. Naoki Yamamoto, Kenta Fukamachi, Yasutaka Takeda, P. Ravindra S De Silva, and Michio Okada: Mako-no-Te: To Explore Side-to-Side Communication through the Intersubjectectivity, In Proceedings of the First International Conference on Human-Agent Interaction (iHAI 2013), II-2 p.14 (2013).

32. Tatsuya Mori, Shohei Sawada, P. Ravindra S De Silva, and Michio Okada: Social Trash Box Robot: Behavior Parsing and Goal Inferences in Dynamic Interactions, In Proceedings of the First International Conference on Human-Agent Interaction (iHAI 2013), II-2-3 (2013).

33. Yuki Odahara, Naoki Ohshima, P. Ravindra S. De Silva, and Michio Okada: Talking Ally: Toward Persuasive Communication in Everyday Life, In Proceedings of The 15th International Conference on Human-Computer Interaction (HCII 2013), pp. 394-403 (2013).

34. Yasutaka Takeda, Shohei Sawada, Tatsuya Mori, Kohei Yoshida, Yu Arita, Takahiro Asano, Naoki Ohshima, P. Ravindra De Silva and Michio Okada: Sociable Creatures for Child-Robot Interaction Studies, In Proceedings of the 8th ACM/IEEE International Conference on Human-Robot Interaction, HRI’13, (2013).

35. Nozomi Kina, Daiki Tanaka, Naoki Ohshima, P. Ravindra S De Silva and Michio Okada: CULOT: Sociable Creature for Child’s Playground, In Proceedings of the 8th ACM/IEEE International Conference on Human-Robot Interaction, HRI’13, p.407 (2013).

36. Yuki Odahara, Youhei Kurata, Naoki Ohshima, P. Ravindra S De Silva and Michio Okada: Talking-Ally: Towards Persuasive Communication, In Proceedings of the 8th ACM/IEEE International Conference on Human-Robot Interaction, HRI’13, p.413 (2013).

37. Anna T. Broers, Jaap Ham. Ron Broeders, Ravindra De Silva and Michio Okada: Goal Inferences about Robot Behavior – Goal Inferences and Human Response Behaviors, In Proceedings of the 8th ACM/IEEE International Conference on Human-Robot Interaction, HRI’13, pp.91-92 (2013).

38. Michio Okada: Social Coordination and Coupling for Designing Human Likeness of Sociable Creatures, In Proceedings of HRI2013 Workshop on Design of Humanlikeness in HRI from uncanny valley to minimal design, p.5 (2013).

39. Naoki Ohshima, Yusuke Ohyama, Yuki Odahara, P. Ravindra S. De Silva and Michio Okada: Talking-Ally: Intended Persuasiveness by the Utilizing Hearership and Addressivity, In Proceedings of The fourth International Conference on Social Robotics (ICSR2012), pp. 317–326 (2012).

40. Naoki Ohshima, Yuta Yamaguchi, P. Ravindra S. De Silva, Michio Okada: Sociable Spotlights: Cognitive Artifacts to Enhance Engagement in Conversation, In Proceedings of the 10th Asia Pacific Conference on Computer Human Interaction, (2012).

41. Yasutaka Takeda, Kohei Yoshida, P. Ravindra S. De Silva and Michio Okada: COLUMN: The Visually Mediated Interpersonal Coordination, In Proceedings of the 10th Asia Pacific Conference on Computer Human Interaction, (2012).

42. Yu Arita, Shinya Hirota, Yuta Yoshiike, P. Ravindra S De Silva, and Michio Okada: SDT: A “KonKon?” Interface to Build up the Connotation Interactions, In Proceedings of 7th ACM/IEEE International Conference on Human-Robot Interaction (HRI2012), p.399 (2012).

43. Yuta Yoshiike, P. Ravindra S. De Silva, and Michio Okada: MAWARI: A Social Interface to Reduce the Workload of the Conversation, In Proceedings of International Conference on Social Robotics 2011 (ICSR2011), LNAI7072, pp.11-20 (2011).

44. Naoki Ohshima, Yuta Yamaguchi, P. Ravindra S. De Silva, and Michio Okada: Sociable Spotlights: Cognitive Artifacts to Enhance Engagement in Conversation, In Proceedings of International Conference on Social Robotics 2011 (ICSR2011), pp.73-76 (2011).

45. Naoki Ohshima, Yuta Yamaguchi, P. Ravindra S. De Silva, and Michio Okada: Sociable Spotlights: Cognitive Artifacts to Enhance Engagement in Conversation, In Proceedings of the Asia-Pacific Interdisciplinary Research Conference 2011 (AP-IRC 2011), pp.73 (2011).

46. Yuta Yoshiike, Takashi Fukui, P. Ravindra S. De Silva, and Michio Okada: ROBOMO: A Futuristic Personalized-Accompanying Sociable Creature, In Proceedings of ICRA2011 Workshop on Robots and Art, Frontiers in Human-Centered Robotics as Seen by the Arts, WS-F-11 (2011).

47. Yu Arita, Taisuke Miyake, Naoki Yamamoto, P. Ravindra S De Silva, and Michio Okada: HINOCO – An Interface to Colligate the Virtual-World and Real-World, In Proceedings of Virtual Reality International Conference (VRIC 2011), pp.18-19 (2011).

48. Yuta Yoshiike, Hiroyuki Ojima, P. Ravindra S De Silva and Michio Okada: MAWARI: An Interactive Social Interface, In Proceedings of 6th ACM/IEEE International Conference on Human-Robot Interaction (HRI2011), pp.293-294 (2011).

49. Yasutaka Takeda, Yuta Yoshiike, P. Ravindra S De Silva and Michio Okada: COLUMN: Dynamic of Interpersonal Coordination, In Proceedings of 6th ACM/IEEE International Conference on Human-Robot Interaction (HRI2011), pp.389-390 (2011).

50. Yuto Yamaji, Taisuke Miyake, Yuta Yoshiike, P. Ravindra De Silva and Michio Okada: STB: Intentional Stance Grounded Child-dependent Robot, In Proceedings of International Conference on Social Robotics (ICSR 2010), S.S. Ge et al. (Eds.): ICSR 2010, LNAI 6414, pp. 71-80 (2010).

51. Yuki Kado, Takanori Kamoda, Yuta Yoshiike, P. Ravindra S. De Silva, and Michio Okada: Reciprocal-Adaptation in a Creature-based Futuristic Sociable Dining Table, In Proceedings of 19th IEEE International Symposium in Robot and Human Interactive Communication (Ro-Man 2010), WeP2T2.4 (2010).

52. Yasutaka Takeda, Taisuke Miyake, Hironori Uto, Yuta Yoshiike, R. Ravindra De Silva, and Michio Okada: COLUMN: A Novel Architecture for Transformable Artifact, In Proceedings of Virtual Reality International Conference (VRIC 2010), pp.271-277 (2010).

53. Yuta Yoshiike, P. Ravindra De Silva and Michio Okada: Cues for Sociable PC: Coordinate and Synchronize Its Cues based on User Attention and Activities on Display, In Proceedings of 5th ACM/IEEE International Conference on Human-Robot Interaction (HRI2010), pp.135-136 (2010).

54. Yuto Yamaji, Taisuke Miyake, Yuta Yoshiike, P. Ravindra De Silva and Michio Okada: STB: Human-Dependent Sociable Trash Box, In Proceedings of 5th ACM/IEEE International Conference on Human-Robot Interaction (HRI2010), pp.197-198 (2010).

55. Yuki Kado, Takanori Kamoda, Yuta Yoshiike, P. Ravindra De Silva and Michio Okada: Sociable Dining Table: The Effectiveness of a ”KonKon?” Interface for Reciprocal Adaptation, In Proceedings of 5th ACM/IEEE International Conference on Human-Robot Interaction (HRI2010), pp.105-106 (2010).

56. Yuta Yoshiike, Yuto Yamaji, Taisuke Miyake, P. Ravindra De Silva and Michio Okada: Sociable Trash Box, In Proceedings of the 5th ACM/IEEE International Conference on Human-Robot Interaction (HRI2010), p.337 (2010).

57. Michio OKADA: Embodiment in human-robot interaction and communication, Colloque international, Vers une nouvelle philosophie du corps: Centenaire de la naissance de Maurice Merleau-Ponty, Rikkyo University (2008).

58. Michio OKADA: How “Indeterminacy” Promotes Social Interaction between Humans and Artificial Creatures, In Proceedings of the 14th International Conference on Perception and Action (ICPA14): Symposium on Ecological Robotics, p.122 (2007).