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Speaker: Dr. Heng Xu
PNC Technologies Career Development Professor
Assistant Professor of Information Sciences and Technology
Pennsylvania State University
Time: Friday, April 15st
Location: Duques 520
This study seeks to clarify the nature of control in the context of information privacy to generate insights into the effects of different privacy assurance approaches on situation-specific concerns for information privacy. We theorize that such effects are exhibited through mediation by perceived control over personal information and develop arguments in support of the interaction effects involving different privacy assurance approaches (individual self-protection, industry self-regulation, and government legislation). We test the research model in the context of location-based services using data obtained from 178 individuals in an online experiment study. In general, the results support our core assertion that perceived control over personal information is a key factor affecting situation-specific concerns for information privacy. Moreover, the presence of individual self-protection or industry self-regulation diminishes the effects of government legislation on enhancing perceived control over personal information. In addition to enhancing our theoretical understanding of the link between control and privacy concerns, these findings have important implications for service providers and consumers, as well as for regulatory bodies and technology developers.
Speaker: Dr. Dongsong Zhang
Associate Professor in the Department of Information Systems
University of Maryland, Baltimore County
Time: Friday, April 1st
Location: Duques 520
Mobile Web, defined as accessing the Web from mobile handheld devices, is widely considered as a killer application for such devices. Despite the tremendous flexibility, accessibility, and convenience of handheld devices, rendering and navigating Web content on those pocket-size devices suffer from significant usability problems due to their physical constraints, such as small screen. As a result, the display and navigation of Web pages are often found unpleasant and ineffective. One of the emerging solutions to this problem is Web content adaptation, aiming to adapt original Web pages so as to make Web browsing easier and more effective and improve user experience with mobile Web. In this study, based on cognitive fit theory and information foraging theory, we propose a hybrid approach to adapting Web pages that integrates tree-view, hierarchical text summarization, and colored keyword highlighting. By following the design science research framework, we implemented the proposed approach on handheld devices and empirically evaluated the effects of adaptation on mobile Web browsing. The results show that presentation adaptation could significantly improve user performance and perception. We also discover that the positive impact of adaptation is moderated by the complexity of an information search task.