Individual Differences, User Perceptions and Eye Gaze in Biomedical Search Interfaces
Dr. Ying-Hsang Liu
School of Information Studies at Charles Sturt University
User search behaviour studies suggest that individual differences, such as domain knowledge, search experience and cognitive styles, are important factors affecting people’s interactions with search systems. However, very few studies have investigated the effect of individual differences on eye gaze for the design of natural search user interface. In this seminar, I will present findings from an eyetracking study of the biomedical domain experts’ interactions with novel search interfaces. Thirty-two participants searched eight complex questions on four different search interfaces, which are distinguished by whether the Medical Subject Headings (MeSH) terms are presented and how the displayed MeSH terms are generated. Our findings reveal that domain knowledge and search experience significantly affect the users’ areas of interest (AOI) of different interface elements. There is a significant interaction effect between search interfaces and cognitive styles. The implications for search user interface design will be discussed.
Dr Ying-Hsang Liu is a Lecturer in Information Management at the School of Information Studies at Charles Sturt University, and a Visiting Fellow at the Research School of Computer Science at The Australian National University. He holds a PhD in Information Science from the School of Communication and Information at Rutgers University in the US. His primary research and teaching areas lie at the intersections of user-centered aspects of information retrieval, information organisation, information architecture and human information behaviour, with an emphasis on the system design and evaluation issues. He has published in high quality journals and peer-reviewed conference proceedings within his area of expertise. His research program has been funded by ALIA (Australian Library and Information Association), OLT (Office for Learning & Teaching) and ARC (Australian Research Council) Linkage Projects scheme.