Xianghua Ding
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Publications by Xianghua Ding (bibliography)
» 2008 «
Ding, Xianghua and Patterson, Donald J. (2008): NomaticBubbles: visualizing communal whereabouts. In: Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems April 5-10, 2008. pp. 3765-3770. Available online
We describe the design of the NomaticBubbles, a visualization that provides cues of communal whereabouts. Unlike most location displays showing whereabouts on a geographical map, the NomaticBubbles depicts historical and aggregate traces of participants' whereabouts in an abstract and ambiguous manner. We describe the design of the NomaticBubbles, and discuss some early experiences and feedback we got, as well as future work.
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Patterson, Donald J., Baker, Christopher, Ding, Xianghua, Kaufman, Samuel J., Liu, Kah and Zaldivar, Andrew (2008): Online everywhere: evolving mobile instant messaging practices. In: Youn, Hee Yong and Cho, We-Duke (eds.) UbiComp 2008 Ubiquitous Computing - 10th International Conference September 21-24, 2008, Seoul, Korea. pp. 64-73. Available online
» 2007 «
Ding, Xianghua, Erickson, Thomas D., Kellogg, Wendy A., Levy, Stephen, Christensen, James E., Sussman, Jeremy, Wolf, Tracee Vetting and Bennett, William (2007): An empirical study of the use of visually enhanced voip audio conferencing: the case of IEAC. In: Proceedings of ACM CHI 2007 Conference on Human Factors in Computing Systems 2007. pp. 1019-1028. Available online
IBM Enhanced Audio Conferencing (IEAC) is a VoIP-based audio conferencing system that, like several other systems, provides a visualization showing who is present and their states (e.g., speaking, muted). This paper presents the first study of the use of such a system. Drawing on log files collected over six weeks of use by over 1300 corporate employees, and interviews with 10 of them, we look at how and why various features of the system are used and what sorts of practices are supported. Our findings shed light on the factors that drive the use of visual enhancements to audio conferencing, and suggest further research topics.
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» 2005 «
Paula, Rogerio de, Ding, Xianghua, Dourish, Paul, Nies, Kari, Pillet, Ben, Redmiles, David F., Ren, Jie, Rode, Jennifer Ann and Filho, Roberto Silva (2005): In the eye of the beholder: A visualization-based approach to information system security. In International Journal of Human-Computer Studies, 63 (1) pp. 5-24
Computer system security is traditionally regarded as a primarily technological concern; the fundamental questions to which security researchers address themselves are those of the mathematical guarantees that can be made for the performance of various communication and computational challenges. However, in our research, we focus on a different question. For us, the fundamental security question is one that end-users routinely encounter and resolve for themselves many times a day -- the question of whether a system is secure enough for their immediate needs. In this paper, we will describe our explorations of this issue. In particular, we will draw on three major elements of our research to date. The first is empirical investigation into everyday security practices, looking at how people manage security as a practical, day-to-day concern, and exploring the context in which security decisions are made. This empirical work provides a foundation for our reconsideration of the problems of security to a large degree as an interactional problem. The second is our systems approach, based on visualization and event-based architectures. This technical approach provides a broad platform for investigating security and interaction, based on a set of general principles. The third is our initial experiences in a prototype deployment of these mechanisms in an application for peer-to-peer file sharing in face-to-face collaborative settings. We have been using this application as the basis of an initial evaluation of our technology in support of everyday security practices in collaborative workgroups.
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Paula, Rogerio de, Ding, Xianghua, Dourish, Paul, Nies, Kari, Pillet, Ben, Redmiles, David F., Ren, Jie, Rode, Jennifer Ann and Filho, Roberto Silva (2005): Two experiences designing for effective security. In: Proceedings of the 2005 Symposium on Usable Privacy and Security 2005. pp. 25-34. Available online
In our research, we have been concerned with the question of how to make relevant features of security situations visible to users in order to allow them to make informed decisions regarding potential privacy and security problems, as well as regarding potential implications of their actions. To this end, we have designed technical infrastructures that make visible the configurations, activities, and implications of available security mechanisms. This thus allows users to make informed choices and take coordinated and appropriate actions when necessary. This work differs from the more traditional security usability work in that our focus is not only on the usability of security mechanism (e.g., the ease-of-use of an access control interface), but how security can manifest itself as part of people's interactions with and through information systems (i.e., how people experience and interpret privacy and security situations, and are enabled or constrained by existing technological mechanisms to act appropriately). In this paper, we report our experiences designing, developing, and testing two technical infrastructures for supporting this approach for usable security.
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Mar 21st, 2010
Changes to this page (author)
26 Feb 2010: Enabled abstracts to be shown on Xianghua Ding's author page.30 May 2009: Author was edited 12 May 2008: Author was edited
12 May 2008: Author was edited
27 Jun 2007: Author was edited
19 Jun 2007: Author was added to the bibliography