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This paper provided empirical knowledge of the user experience for using collaborative visualization in a distributed asymmetrical setting through controlled user studies. With the ability to access various computing devices, such as Virtual Reality (VR) head-mounted displays, scenarios emerge when collaborators have to or prefer to use different computing environments in different places. However, we still lack an understanding of using VR in an asymmetric setting for collaborative visualization. To get an initial understanding and better inform the designs for asymmetric systems, we first conducted a formative study with 12 pairs of participants. All participants collaborated in asymmetric (PC-VR) and symmetric settings (PC-PC and VR-VR). We then improved our asymmetric design based on the key findings and observations from the first study. Another ten pairs of participants collaborated with enhanced PC-VR and PC-PC conditions in a follow-up study. We found that a well-designed asymmetric collaboration system could be as effective as a symmetric system. Surprisingly, participants using PC perceived less mental demand and effort in the asymmetric setting (PC-VR) compared to the symmetric setting (PC-PC). We provided fine-grained discussions about the trade-offs between different collaboration settings., 11 pages, 12 figures, accepted at IEEE VR 2023

Supplemental material, sj-pdf-2-ivi-10.1177_14738716231157082 for Is embodied interaction beneficial? A study on navigating network visualizations by Helen H Huang, Hanspeter Pfister and Yalong Yang in Information Visualization

Supplemental material, sj-pdf-1-ivi-10.1177_14738716231157082 for Is embodied interaction beneficial? A study on navigating network visualizations by Helen H Huang, Hanspeter Pfister and Yalong Yang in Information Visualization

Supplemental material, sj-pdf-3-ivi-10.1177_14738716231157082 for Is embodied interaction beneficial? A study on navigating network visualizations by Helen H Huang, Hanspeter Pfister and Yalong Yang in Information Visualization

Supplemental material, sj-pdf-3-ivi-10.1177_14738716231157082 for Is embodied interaction beneficial? A study on navigating network visualizations by Helen H Huang, Hanspeter Pfister and Yalong Yang in Information Visualization

Supplemental material, sj-pdf-1-ivi-10.1177_14738716231157082 for Is embodied interaction beneficial? A study on navigating network visualizations by Helen H Huang, Hanspeter Pfister and Yalong Yang in Information Visualization

Supplemental material, sj-pdf-2-ivi-10.1177_14738716231157082 for Is embodied interaction beneficial? A study on navigating network visualizations by Helen H Huang, Hanspeter Pfister and Yalong Yang in Information Visualization

In this user study, we want to compare focus+context, pan&zoom, and overview+details techniques in matrix visualizations.

This is a follow-up of our previous study (Investigate visualizations that wrap around spherical topologies - https://osf.io/vctfu). The difference with the previous study are: - We look at node-link representation of networks that wrap around toroidal and spherical topologies. - We chose two spherical layouts inspired from the previous study: hemisphere (Orthographic hemisphere) and non-hemisphere (Equal Earth) projections. - We compare them with existing toroidal layouts and regular flat (non-spherical, non-toroidal) representations. - All the techniques support interactive panning/rotation except the regular node-link layout. This allows users to view the continuation of edge wrapping around the display

A controlled user study compare zooming and overview+detail interfaces in virtual reality (VR).

Focus+context is an interaction technique that can enlarge the focus area and shrink the rest of a visualization. With this basic idea, different designs of the focus+context technique exist. In this project, we explored the design space and identified four representative designs. We then conduct a controlled user study to compare the effectiveness of them in three visualization tasks.

Traditional 2-dimensional (2D) data visualisations are designed to be viewed on a printed page or standard screen. However, it is possible to arrange data on a 3D surface such as a sphere or torus topology, and then project such a surface onto a 2D rectangular plane while wrapping the data around the boundaries of a 2D surface. Potential benefits include the preservation of the data’s underlying topology in the case of geospatial data, and the preservation of the data’s underlying structure in the case of abstract data such as networks. However, in wrapped visualisations the viewer needs to perceive continuity of the visualisation across boundaries, which may induce additional cognitive load. Despite widespread use of projection techniques in geovisualisation and study of network embeddings on toroidal surfaces, there is very little research into wrapped data visualisations. This project aims to (1) conduct user studies to evaluate readability of interactively wrapping on map projection visualisations, and compare with their equivalent unwrapped visualisations; (2) conduct user studies to evaluate the readability of interactive wrapped visualisations of spherical node-link layouts and compare with their toroidal representations.

Background Reconstruction of the medial patellofemoral ligament (MPFL) is an effective surgical method for the treatment of lateral patellar instability. At present, there is not much controversies regarding the femoral attachment, however, the controversies regarding patellar attachment versus attachment, number of graft strands, tension, isometry and so on. Methods The following electronic databases will be searched: PubMed, the Cochrane Library, Embase, Web of Science, Medline. We will consider articles published between database initiation and March 2021. MPFL in the subject heading will be included in the study. Language is limited to English. Research selection, data extraction, and research quality assessment were independently completed by 2 researchers. Results MPFL reconstruction is a reliable technique for the treatment of patellofemoral instability. The Schottle point is still the mainstream method for locating the femoral attachment, the patellar attachment for single-bundle is located at the junction of the proximal one third and the distal two third of the longitudinal axis of the patella. For double-bundles, one is located in the proximal one third of the medial patellar edge and another is in the center of the patellar edge. Meanwhile, the adjustment of graft tension during operation is very important. Conclusions By reviewing a large number of literature, this article summarizes the above problems during surgery and serves as a guideline to the management of MPFL reconstruction in lateral patellar instability.

The overcurrent due to the short circuit of the thyristor arm is considered to be one of the important research contents. In the Comprehensive Research Facility for Fusion Technology (CRAFT) power supply system, when a short circuit occurs in the converter arm, the general protection method is to use a fuse for protection, but the way to select fuse is very blind, and the matching and suitability are not very good, resulting in a waste of components. In this paper, theoretical calculation and simulation verification are used for the CRAFT TF magnet power system, based on the principle of reliable fuse when the converter arm is short-circuited, and the principle of no action when the reactor is short-circuited, the fault current of the fast fuse is verified to determine the fast. The fuse model and the simulation results show that the selected fast fuse can effectively suppress the overcurrent, and the CRAFT tf magnet power system has been effectively protected.

We present our initial investigation of key challenges and potentials of immersive analytics (IA) in sports, which we call SportsXR. Sports are usually highly dynamic and collaborative by nature, which makes real-time decision making ubiquitous. However, there is limited support for athletes and coaches to make informed and clear-sighted decisions in real-time. SportsXR aims to support situational awareness for better and more agile decision making in sports. In this paper, we identify key challenges in SportsXR, including data collection, in-game decision making, situated sport-specific visualization design, and collaborating with domain experts. We then present potential user scenarios in training, coaching, and fan experiences. This position paper aims to inform and inspire future SportsXR research., Comment: 7 pages, 5 figures

This thesis develops and evaluates effective techniques for visualisation of flows (e.g. of people, trade, knowledge) between places on geographic maps. This geographically-embedded flow data contains information about geographic locations, and flows from origin locations to destination locations. We explored the design space of OD flow visualisation in both 2D and immersive environments. We do so by creating novel OD flow visualisations in both environments, and then conducting controlled user studies to evaluate different designs., Comment: PhD Thesis, Monash University, Australia, December 2018. Update: corrected typos in arXiv comments

Currently, the demand on thermal comfort of architectural environment is becoming higher and higher, the establishment of thermal comfort model based on the physiological parameters plays an important role in improving the indoor thermal comfort and building energy efficiency. The mean skin temperature, skin conductance, and heart rate are three main physiological parameters used to characterize the thermal comfort state of the human body, which will be of great significance to establish the thermal comfort model. In this paper, the physiological experimental program was designed in detail and the subjective questionnaires ruler was classified involving thermal sensation, thermal comfort, and sweat rate. Then, the human subjective thermal response distribution and the regular pattern were analyzed according to the vote on the state of thermal comfort and physiological parameters of subjects under five experimental conditions. As a result, the multiple physiological modeling of indoor human thermal comfort was performed by using partial least squares (PLS) method based on mean skin temperature, skin conductance, and heart rate. Furthermore, the experiments aimed at evaluating the accuracy of the established indoor human thermal comfort model were performed, the results indicate the accuracy of the established model is satisfactory.

As an important evaluation index of indoor environmental quality, human thermal comfort is affected by various factors. As human physiological signal, the skin temperature is closely related to human thermal comfort. To investigate the model's mapping relationship between the skin temperature and the human thermal comfort, the skin temperatures of six parts of human body were chosen as research object, the linear mapping relationship between the average skin temperature and the human thermal comfort was analyzed by using Fisher discriminant method under five different experimental conditions and subjective voting. As a result, the mathematical evaluating model between the average skin temperature and human thermal comfort was obtained based on experiments. The results indicate the average precision of this model is high and the discriminant result is reliable, which provides valuable reference for human thermal comfort modeling under homogeneous environmental condition.