ORCID Profile
0000-0002-9076-9571
Current Organisation
Monash University
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Artificial Intelligence and Image Processing not elsewhere classified | Artificial Intelligence and Image Processing | Information Systems | Computer-Human Interaction | Interfaces And Presentation (Excl. Computer-Human Interaction) | Virtual Reality and Related Simulation | Computation Theory And Mathematics Not Elsewhere Classified | Computer Software Not Elsewhere Classified | Ubiquitous Computing
Application Software Packages (excl. Computer Games) | Technological and organisational innovation | Information services not elsewhere classified | Computer software and services not elsewhere classified | Computer Software and Services not elsewhere classified | Electronic Information Storage and Retrieval Services | Expanding Knowledge in the Information and Computing Sciences |
Publisher: Wiley
Date: 06-2015
DOI: 10.1111/CGF.12615
Publisher: IEEE
Date: 04-2017
Publisher: Association for Computing Machinery (ACM)
Date: 14-11-2022
DOI: 10.1145/3567729
Abstract: In immersive environments, positioning data visualisations around the user in a wraparound layout has been advocated as advantageous over flat arrangements more typical of traditional screens. However, other than limiting the distance users must walk, there is no clear design rationale behind this common practice, and little research on the impact of wraparound layouts on visualisation tasks. The ability to remember the spatial location of elements of visualisations within the display space is crucial to support visual analytical tasks, especially those that require users to shift their focus or perform comparisons. This ability is influenced by the user's spatial memory but how spatial memory is affected by different display layouts remains unclear. In this paper, we perform two user studies to evaluate the effects of three layouts with varying degrees of curvature around the user (flat-wall, semicircular-wraparound, and circular-wraparound) on a visuo-spatial memory task in a virtual environment. The results show that participants are able to recall spatial patterns with greater accuracy and report more positive subjective ratings using flat than circular-wraparound layouts. While we didn't find any significant performance differences between the flat and semicircular-wraparound layouts, participants overwhelmingly preferred the semicircular-wraparound layout suggesting it is a good compromise between the two extremes of display curvature.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2017
Publisher: IEEE
Date: 11-2016
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 31-01-2016
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 31-01-2016
Publisher: Elsevier BV
Date: 04-2009
Publisher: Cold Spring Harbor Laboratory
Date: 02-04-2022
DOI: 10.1101/2022.03.30.22273211
Abstract: Visualising patient wait times in emergency departments for patients and families is increasingly common, following the development of prediction models using routinely collected patient demographic, urgency and flow data. Consumers of an emergency department wait time display will have culturally and linguistically erse backgrounds, are more likely to be from under-served populations and will have varied data literacy skills. The wait times are uncertain, the information is presented when people are emotionally and physically challenged, and the predictions may inform high stakes decisions. In such a stressful environment, simplicity is crucial and the visual language must cater to the erse audience. When wait times are conveyed well, patient experience improves. Designers must ensure the visualisation is patient-centred and that data are consistently and correctly interpreted. In this article, we present the results of a design study at three hospitals in Melbourne, Australia, undertaken in 2021. We used rapid iterative testing and evaluation methodology, with patients and families from erse backgrounds as participants, to develop and validate a wait time display. We present the design process and the results of this project. Patients, families and staff were eligible to participate if they were awaiting care in the emergency department, or worked in patient reception and waiting areas. The patient-centred approach taken in our design process varies greatly from past work led by hospital administrations, and the resulting visualisations are very distinct. Most currently displayed wait time visualisations could be adapted to better meet end-user needs. Also of note, we found that techniques developed by visualisation researchers for conveying temporal uncertainty tended to overwhelm the erse audience rather than inform. There is a need to balance precise and comprehensive information presentation against the strong need for simplicity in such a stressful environment.
Publisher: IEEE
Date: 03-2014
Publisher: Springer International Publishing
Date: 2014
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 12-2013
Publisher: Springer Berlin Heidelberg
Date: 2006
DOI: 10.1007/11618058_42
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2013
DOI: 10.1109/TVCG.2013.76
Publisher: Springer International Publishing
Date: 2014
Publisher: Elsevier BV
Date: 06-2018
Publisher: ACM
Date: 19-04-2023
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 07-2006
DOI: 10.1109/TVCG.2006.67
Publisher: ACM
Date: 02-05-2017
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2009
Publisher: Association for Computing Machinery (ACM)
Date: 31-10-2022
DOI: 10.1145/3503461
Abstract: User trust plays a key role in determining whether autonomous computer applications are relied upon. It will play a key role in the acceptance of emerging AI applications such as optimisation. Two important factors known to affect trust are system transparency, i.e., how well the user understands how the system works, and system performance. However, in the case of optimisation, it is difficult for the end-user to understand the underlying algorithms or to judge the quality of the solution. Through two controlled user studies, we explore whether the user is better able to calibrate their trust in the system when: (a) They are provided feedback on the system operation in the form of visualisation of intermediate solutions and their quality (b) They can interactively explore the solution space by modifying the solution returned by the system. We found that showing intermediate solutions can lead to over-trust, while interactive exploration leads to more accurately calibrated trust.
Publisher: Springer Berlin Heidelberg
Date: 2010
Publisher: ACM
Date: 19-04-2023
Publisher: Association for Computing Machinery (ACM)
Date: 14-11-2022
DOI: 10.1145/3567741
Abstract: When collaborating face-to-face, people commonly use the surfaces and spaces around them to perform sensemaking tasks, such as spatially organising documents, notes or images. However, when people collaborate remotely using desktop interfaces they no longer feel like they are sharing the same space. This limitation may be overcome through collaboration in immersive environments, which simulate the physical in-person experience. In this paper, we report on a between-groups study comparing collaborations on image organisation tasks, in an immersive Virtual Reality (VR) environment to more conventional desktop conferencing. Collecting data from 40 subjects in groups of four, we measured task performance, user behaviours, collaboration engagement and awareness. Overall, the VR and desktop interface resulted in similar speed, accuracy and social presence rating, but we observed more conversations and interaction with objects, and more equal contributions to the interaction from participants within groups in VR. We also identified differences in coordination and collaborative awareness behaviours between VR and desktop platforms. We report on a set of systematic measures for assessing VR collaborative experience and a new analysis tool that we have developed to capture user behaviours in collaborative setting. Finally, we provide design considerations and directions for future work.
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2017
Publisher: Elsevier BV
Date: 12-2020
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2017
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2018
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 09-2016
Publisher: ACM
Date: 30-05-2023
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2010
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 12-2018
Publisher: ACM
Date: 30-05-2023
Publisher: ACM
Date: 09-10-2023
Publisher: Springer Berlin Heidelberg
Date: 2006
DOI: 10.1007/11618058_14
Publisher: ACM
Date: 19-04-2023
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 09-2006
Publisher: ACM
Date: 19-04-2023
Publisher: Wiley
Date: 06-2018
DOI: 10.1111/CGF.13431
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2016
DOI: 10.1109/MCG.2016.117
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 07-2016
Publisher: Springer Berlin Heidelberg
Date: 2009
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2017
Publisher: ACM
Date: 19-04-2023
Publisher: ACM
Date: 06-11-2016
Publisher: Springer Berlin Heidelberg
Date: 2010
Start Date: 01-2007
End Date: 12-2010
Amount: $176,184.00
Funder: Australian Research Council
View Funded ActivityStart Date: 08-2014
End Date: 10-2020
Amount: $687,000.00
Funder: Australian Research Council
View Funded ActivityStart Date: 04-2018
End Date: 07-2023
Amount: $453,311.00
Funder: Australian Research Council
View Funded ActivityStart Date: 11-2014
End Date: 01-2018
Amount: $490,000.00
Funder: Australian Research Council
View Funded Activity