Hideyuki Nakanishi
Has also published under the name of:
"H. Nakanishi"
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Publications by Hideyuki Nakanishi (bibliography)
» 2009 «
Nakanishi, Hideyuki, Murakami, Yuki and Kato, Kei (2009): Movable cameras enhance social telepresence in media spaces. In: Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009. pp. 433-442. Available online
“Media space is a promising but still immature technology to connect distributed sites. We developed a simple additional function that moved a remote camera forward when a local user approached a display so that the approach was amplified by a remote person's expanding image accompanied by motion parallax. We conducted an experiment in which we observed that a movable camera enhanced social telepresence, which is the feeling of facing a remote person in the same room. Despite the camera's movement, subjects believed that the camera did not move and a zoom-in function expanded the image. Surprisingly, a zoom-in camera that expanded the image as the movable camera did, however, was ineffective probably because of a lack of motion parallax. Although we explained nothing about the camera, most subjects noticed that their walking caused the view's expansion. If a remote person initiated the camera's movement, social telepresence could not be enhanced.”
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» 2008 «
Nakanishi, Hideyuki, Murakami, Yuki, Nogami, Daisuke and Ishiguro, Hiroshi (2008): Minimum movement matters: impact of robot-mounted cameras on social telepresence. In: Proceedings of ACM CSCW08 Conference on Computer-Supported Cooperative Work 2008. pp. 303-312. Available online
“Recently, various robots capable of having a video chat with distant people have become commercially available. This paper shows that movement of these robots enhances distant people's presence that the robot operator feels. We conducted an experiment to compare the degrees of social telepresence produced by fixed, rotatable, movable, and automatically moving cameras. In this experiment we found that forward-backward movement of the camera significantly contributed to social telepresence, while rotation did not. We also found that this effect disappeared when the camera moved automatically. We propose the user-controllable movement of cameras as a fundamental function for video-based communication systems.”
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» 2005 «
Nakanishi, Hideyuki, Koizumi, Satoshi and Ishida, Toru (2005): Virtual Cities for Real-World Crisis Management. In: Besselaar, Peter Van den and Koizumi, Satoshi (eds.) Digital Cities III - Third International Digital Cities Workshop September 18-19, 2005, Amsterdam, The Netherlands. pp. 204-216. Available online
» 2004 «
Nakanishi, Hideyuki, Koizumi, Satoshi, Ishida, Toru and Ito, Hideaki (2004): Transcendent communication: location-based guidance for large-scale public spaces. In: Dykstra-Erickson, Elizabeth and Tscheligi, Manfred (eds.) Proceedings of ACM CHI 2004 Conference on Human Factors in Computing Systems April 24-29, 2004, Vienna, Austria. pp. 655-662. Available online
“Many studies have been conducted on supporting communication in home and office spaces, but relatively few studies have explored supporting communication in large-scale public spaces, despite the importance of such environments in our daily lives. We propose a transcendent means of communication as an emerging style in this pervasive computing era: a system that allows administrative staff to effectively help visitors in large-scale public spaces. The visitors' context is used to provide a bird's-eye view of a simulated public space for the staff to grasp the situation and point at a particular location within the view to indicate the visitors they intend to address. The results of an experiment showed synergic effects between the bird's-eye view and the first-person one in determining the spatial movements of people. In indoor and outdoor large-scale public spaces, a central railway station and a park, we installed our prototypes and learned the implications of its use.”
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Nakanishi, Hideyuki (2004): FreeWalk: a social interaction platform for group behaviour in a virtual space. In International Journal of Human-Computer Studies, 60 (4) pp. 421-454
“FreeWalk is a social interaction platform where people and agents can
socially and spatially interact with one another. FreeWalk has evolved to
support heterogeneous interaction styles including meetings, cross-cultural
encounters, and evacuation drills. Each of them is usually supported by an
individual virtual environment. This evolution extended the capability to
control social interaction. The first prototype only provides people with an
environment in which they can gather to talk with one another while the third
prototype provides them with a whole situation to behave according to their
assigned roles and tasks. FreeWalk1 is a spatial videoconferencing system. In
this system, the positions of participants make spontaneous simultaneous
conversations possible. Spatial movements are integrated with video-mediated
communication. FreeWalk1 is able to make social interaction more casual and
relaxed than telephone-like telecommunication media. In contrast to
conventional videoconferencing systems, people formed concurrent multiple
groups to greet and chat with others. In FreeWalk2, a social agent acts as an
in-between of people to reduce the problem of the low social context in virtual
spaces. When the agent notes an awkward pause in a conversation, it approaches
those involved in the conversation with a suggestion for a new topic to talk
about. We used this agent to support cross-cultural communication between Japan
and US. Our agent strongly influenced people's impressions of their partners,
and also, their stereotypes about their partner's nationality. FreeWalk3 is a
virtual city simulator to conduct virtual evacuation drills. This system brings
social interaction into crisis management simulation. People can join a virtual
scene of a disaster at home. Social agents can also join to play their roles
assigned by simulation designers. The system architecture has a split control
interface to divide control of multiple agents into high-level instruction for
them and simulation of their low-level actions. The interface helps simulation
designers to control many agents efficiently.”
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Nakanishi, Hideyuki and Ishida, Toru (2004): FreeWalk/Q: social interaction platform in virtual space. In: Lau, Rynson W. H. and Baciu, George (eds.) VRST 2004 - Proceedings of the ACM Symposium on Virtual Reality Software and Technology November 10-12, 2004, Hong Kong, China. pp. 97-104. Available online
» 2002 «
Ishida, Toru, Ishiguro, Hiroshi and Nakanishi, Hideyuki (2002): Connecting Digital and Physical Cities. In: Tanabe, Makoto, Besselaar, Peter Van den and Ishida, Toru (eds.) Digital Cities II - Second Kyoto Workshop on Digital Cities October 18-20, 2002, Kyoto, Japan. pp. 246-256. Available online
» 2000 «
Isbister, Katherine, Nakanishi, Hideyuki, Ishida, Toru and Nass, Clifford (2000): Helper Agent: Designing an Assistant for Human-Human Interaction in a Virtual Meeting Space. In: Turner, Thea, Szwillus, Gerd, Czerwinski, Mary, Peterno, Fabio and Pemberton, Steven (eds.) Proceedings of the ACM CHI 2000 Human Factors in Computing Systems Conference April 1-6, 2000, The Hague, The Netherlands. pp. 57-64. Available online
“This paper introduces a new application area for agents in the computer interface: the support of human-human interaction. We discuss an interface agent prototype that is designed to support human-human communication in virtual environments. The prototype interacts with users strategically during conversation, spending most of its time listening. The prototype mimics a party host, trying to find a safe common topic for guests whose conversation has lagged. We performed an experimental evaluation of the prototype's ability to assist in cross-cultural conversations. We designed the prototype to introduce safe or unsafe topics to conversation pairs, through a series of questions and suggestions. The agent made positive contributions to participants' experience of the conversation, influenced their perception of each other and of each others' national group, and even seemed to effect their style of behavior. We discuss the implications of our research for the design of social agents to support human-human interaction.”
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» 1999 «
Okamoto, M., Nakanishi, Hideyuki, Isbister, Katherine and Ishida, Toru (1999): Supporting cross-cultural communication in real-world encounters. In: 1999. pp. 442-446.
» 1998 «
Okamoto, Masayuki, Nakanishi, Hideyuki, Nishimura, Toshikazu and Ishida, Toru (1998): Silhouettell: Awareness Support for Real-World Encounter. In: Ishida, Toru (ed.) Community Computing and Support Systems, Social Interaction in Networked Communities June, 1998, Kyoto, Japan. pp. 316-329. Available online
» 1996 «
Nakanishi, Hideyuki, Yoshida, Chikara, Nishimura, Toshikazu and Ishida, Toru (1996): FreeWalk: Supporting Casual Meetings in a Network. In: Olson, Gary M., Olson, Judith S. and Ackerman, Mark S. (eds.) Proceedings of the 1996 ACM conference on Computer supported cooperative work November 16 - 20, 1996, Boston, Massachusetts, United States. pp. 308-314. Available online
“FreeWalk is a desktop meeting environment to support informal communication. FreeWalk provides a 3-D community common where everybody can meet and can behave just as they do in real life. Each participant is represented as a pyramid of 3-D polygons on which his/her live video is mapped, and can move freely. Voice volume is proportional to the distance between sender and recipient so that many participants can talk without confusion. Various behaviors have been noted so far, such as approaching a talking couple from a distance to secretly listen to their conversation.”
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Mar 15th, 2010
Changes to this page (author)
14 Feb 2010: Enabled abstracts to be shown on Hideyuki Nakanishi's author page.16 Jun 2009: Author was edited 31 May 2009: Author was edited
31 May 2009: Author was edited
31 May 2009: Author was edited
09 May 2009: Author was edited
15 Apr 2009: Added a picture of Hideyuki Nakanishi
07 Apr 2009: Author was edited
29 Jun 2007: Author was added to the bibliography
28 Apr 2003: Added the author to the bibliography
