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Zhenan Hong

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Publications by Zhenan Hong (bibliography)

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2011
 
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Yang, Rayoung, Park, Sangmi, Mishra, Sonali R., Hong, Zhenan, Newsom, Clint, Joo, Hyeon, Hofer, Erik and Newman, Mark W. (2011): Supporting spatial awareness and independent wayfinding for pedestrians with visual impairments. In: Thirteenth Annual ACM SIGACCESS Conference on Assistive Technologies 2011. pp. 27-34.

Much of the information designed to help people navigate the built environment is conveyed through visual channels, which means it is not accessible to people with visual impairments. Due to this limitation, travelers with visual impairments often have difficulty navigating and discovering locations in unfamiliar environments, which reduces their sense of independence with respect to traveling by foot. In this paper, we examine how mobile location-based computing systems can be used to increase the feeling of independence in travelers with visual impairments. A set of formative interviews with people with visual impairments showed that increasing one's general spatial awareness is the key to greater independence. This insight guided the design of Talking Points 3 (TP3), a mobile location-aware system for people with visual impairments that seeks to increase the legibility of the environment for its users in order to facilitate navigating to desired locations, exploration, serendipitous discovery, and improvisation. We conducted studies with eight legally blind participants in three campus buildings in order to explore how and to what extent TP3 helps promote spatial awareness for its users. The results shed light on how TP3 helped users find destinations in unfamiliar environments, but also allowed them to discover new points of interest, improvise solutions to problems encountered, develop personalized strategies for navigating, and, in general, enjoy a greater sense of independence.

© All rights reserved Yang et al. and/or ACM Press

2010
 
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Newman, Mark W., Ackerman, Mark S., Kim, Jungwoo, Prakash, Atul, Hong, Zhenan, Mandel, Jacob and Dong, Tao (2010): Bringing the field into the lab: supporting capture and replay of contextual data for the design of context-aware applications. In: Proceedings of the 2010 ACM Symposium on User Interface Software and Technology 2010. pp. 105-108.

When designing context-aware applications, it is difficult to for designers in the studio or lab to envision the contextual conditions that will be encountered at runtime. Designers need a tool that can create/re-create naturalistic contextual states and transitions, so that they can evaluate an application under expected contexts. We have designed and developed RePlay: a system for capturing and playing back sensor traces representing scenarios of use. RePlay contributes to research on ubicomp design tools by embodying a structured approach to the capture and playback of contextual data. In particular, RePlay supports: capturing naturalistic data through Capture Probes, encapsulating scenarios of use through Episodes, and supporting exploratory manipulation of scenarios through Transforms. Our experiences using RePlay in internal design projects illustrate its potential benefits for ubicomp design.

© All rights reserved Newman et al. and/or their publisher

 
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