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Sylvia Wilbur

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Publication statistics

Pub. period:1986-1997
Pub. count:5
Number of co-authors:9

Co-authors

Number of publications with 3 favourite co-authors:

Jon Crowcroft:1
J. Robert Ensor:1
John C. Tang:1

Productive colleagues

Sylvia Wilbur's 3 most productive colleagues in number of publications:

Mel Slater:85
Steve Whittaker:68
John C. Tang:37

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May 22

Knowing (by) Designing 2013

May 27

13th Intl. Conf. on New Interfaces for Musical Expression

May 28

Graphics Interface 2013

May 21

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Sylvia Wilbur

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Publications by Sylvia Wilbur (bibliography)

1997

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Slater, Mel and Wilbur, Sylvia (1997): A Framework for Immersive Virtual Environments (FIVE): Speculations on the Role of Presence in Virtual Environments. In Presence: Teleoperators and Virtual Environments, 6 (6) pp. 603-616.

1994

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Wilbur, Sylvia, Beirne, Garry, Crowcroft, Jon, Ensor, J. Robert and Tang, John C. (1994): Getting the Model Right for Video-Mediated Communication (Panel Abstract). In: ACM Multimedia 1994 1994. pp. 389-390.

1993

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O'Conaill, Brid, Whittaker, Steve and Wilbur, Sylvia (1993): Conversations Over Video Conferences: An Evaluation of the Spoken Aspects of Video-Mediated Communication. In Human-Computer Interaction, 8 (4) pp. 389-428.

“Recent trends toward telecommuting, mobile work, and wider distribution of the work force, combined with reduced technology costs, have made video communications more attractive as a means of supporting informal remote interaction. In the past, however, video communications have never gained widespread acceptance. Here we identify possible reasons for this by examining how the spoken characteristics of video-mediated communication differ from face-to-face interaction, for a series of real meetings. We evaluate two wide-area systems. One uses readily available Integrated Services Digital Network (ISDN) lines but suffers the limitations of transmission lags, a half-duplex line, and poor quality video. The other uses optical transmission and video-switching technology with negligible delays, full duplex audio, and broadcast quality video To analyze the effects of video systems on conversation, we begin with a series of conversational characteristics that have been shown to be important in face-to-face interaction. We identify properties of the communication channel in face-to-face interaction that are necessary to support these characteristics, namely, that it has low transmission lags, it is two way, and it uses multiple modalities. We compare these channel properties with those of the two video-conferencing systems and predict how their different channel properties will affect spoken conversation. As expected, when compared with face-to-face interaction, communication using the ISDN system was found to have longer conversational turns; fewer interruptions, overlaps, and backchannels; and increased formality when switching speakers. Communication over the system with broadcast quality audio and video was more similar to face-to-face meetings, although it did not replicate face-to-face interaction. Contrary to our expectations, formal techniques were still used to achieve speaker switching. We suggest that these may be necessary because of the absence of certain speaker-switching cues. The results imply that the advent of high-speed multimedia networking will improve but not remove all the problems of video conferencing as an interpersonal communications tool, and we describe possible solutions to the outstanding problems.”

1988

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Wilbur, Sylvia (1988): The State of the COSMOS -- Current Research and Future Possibilities. In Behaviour and Information Technology, 7 (2) pp. 223-226.

1986

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Wilbur, Sylvia, Rubin, Tony and Lee, Stephen (1986): A Study of Group Interaction over a Computer-Based Message System. In: Harrison, Michael D. and Monk, Andrew (eds.) Proceedings of the Second Conference of the British Computer Society Human Computer Interaction Specialist Group - People and Computers II August 23-26, 1986, University of York, UK. pp. 235-248.

“This paper is based on a study of the use of a computer-based message system for collaboration among a team of researchers based at five different sites. A review is presented of similar work on messaging for group communication, and attention is drawn to the comparative paucity of empirical analysis of the strengths and weaknesses of computer-based systems in this respect. An analysis is made of messages sent over the period of a year, during which the team developed a joint proposal for a programme of research and successfully obtained approval for funding. Two methods have been used to carry out the analysis. First, a statistical analysis using the SPSS package was conducted, and these results are shown in figures within the paper. This was followed by an analysis of the contents of messages, and this was carried out manually, in the absence of a suitable application package. Since there were over 1400 messages to be examined, contents were categorised on the basis of a restricted set of criteria, chosen to reflect the team's objectives and with reference to other work in the area. The analysis allows us to make observations about the kinds of interaction that took place, and the extent to which the system was able adequately to support the communication requirements of the group. We believe that further research of this kind will result in the introduction of new structures and design features in advanced message systems of the future.”

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