A5079369129- Data Visualization and Analytics
- Geographic Information Systems Studies
- Data Management and Algorithms
- Human Mobility and Location-Based Analysis
- Species Distribution and Climate Change
- Data Analysis with R
- Land Use and Ecosystem Services
- Spatial and Panel Data Analysis
- Multimedia Communication and Technology
- Data-Driven Disease Surveillance
- Video Analysis and Summarization
- Advanced Text Analysis Techniques
- Innovative Human-Technology Interaction
- Scientific Computing and Data Management
- Persona Design and Applications
- demographic modeling and climate adaptation
- Semantic Web and Ontologies
- Music and Audio Processing
- Music Technology and Sound Studies
- Virtual Reality Applications and Impacts
- 3D Modeling in Geospatial Applications
- Spatial Cognition and Navigation
- Geography Education and Pedagogy
- Augmented Reality Applications
- Participatory Visual Research Methods
City, University of London
2014-2024
Clarkson University
2024
Google (United States)
2022
Edinburgh Royal Infirmary
2021
Roslin Institute
2021
University of Edinburgh
2021
Institute of Genetics and Cancer
2021
University of California, Irvine
2018-2021
University of Utah
2018-2021
Mississippi State University
2021
Visual analytics aims to combine the strengths of human and electronic data processing. Visualisation, whereby humans computers cooperate through graphics, is means which this achieved. Seamless sophisticated synergies are required for analysing spatio-temporal solving problems. In modern society, analysis not solely business professional analysts. Many citizens need or would be interested in undertaking information time space. Researchers should find approaches deal with complexities...
Exploratory visual analysis is useful for the preliminary investigation of large structured, multifaceted spatio-temporal datasets. This process requires selection and aggregation records by time, space attribute, ability to transform data flexibility apply appropriate encodings interactions. We propose an approach inspired geographical 'mashups' in which freely-available functionality are loosely but flexibly combined using de facto exchange standards. Our case study combines MySQL, PHP...
<title/>We present a new technique for the visual exploration of origins (O) and destinations (D) arranged in geographic space. Previous attempts to map flows between have suffered from problems occlusion usually requiring some form generalisation, such as aggregation or flow density estimation before they can be visualized. This lead loss detail introduction arbitrary artefacts representation. Here, we propose mapping OD vectors cells rather than lines, comparable with process constructing...
Existing treemap layout algorithms suffer to some extent from poor or inconsistent mappings between data order and visual ordering in their representation, reducing cognitive plausibility. While attempts have been made quantify this mismatch, proposed minimize inconsistency, solutions provided tend concentrate on one-dimensional ordering. We propose extensions the existing squarified algorithm that exploit two-dimensional arrangement of nodes more effectively. Our spatial provides a...
This issue of Information Visualization showcases research activity involving and contributing to the visual analysis dynamism, movement change in phenomena that have a spatial element.The work presented here represents selection contributions made workshop coordinated by International Cartographic Association (ICA) Commission on Geovisualization Geographic Laboratories Europe (AGILE) Dynamics, Movement Change.Theoretical methodological approaches for exploring analyzing large datasets with...
Visualizing flows between origins and destinations can be straightforward when dealing with small numbers of journeys or simple geographies. Lines embedded in geographic space have commonly been used mapping transport flows, especially patterns are important, as they characterizing cities managing transportation. For larger however, this approach requires careful design to avoid problems occlusion, salience bias, information overload. Driven by the requirements identified users managers...
We develop a new perspective on research conducted through visualization design study that emphasizes as method of inquiry and the broad range knowledge-contributions achieved it multiple, subjective, socially constructed. From this interpretivist position we explore nature six criteria for rigor. propose rigor is established judged according to extent which its reporting are INFORMED, REFLEXIVE, ABUNDANT, PLAUSIBLE, RESONANT, TRANSPARENT. This were constructed four-year engagement with...
Working with three domain specialists we investigate human-centered approaches to geovisualization following an ISO13407 taxonomy covering context of use, requirements and early stages design. Our case study, undertaken over years, draws attention repeating trends: that generic fail elicit adequate for geovis application design; the use real data is key understanding needs possibilities; trust knowledge must be built developed collaborators. These processes take time but modified...
We present and evaluate a framework for constructing sketchy style information visualizations that mimic data graphics drawn by hand. provide an alternative renderer the Processing environment redefines core drawing primitives including line, polygon ellipse rendering. These allow higher-level graphical features such as bar charts, line treemaps node-link diagrams to be in with specified degree of sketchiness. The is designed easily integrated into existing visualization implementations...
We enhance a user-centered design process with techniques that deliberately promote creativity to identify opportunities for the visualization of data generated by major energy supplier. Visualization prototypes developed in this way prove effective situation whereby sets are largely unknown and requirements open - enabling successful exploration possibilities Smart Home analysis. The gives rise novel designs metaphors including sculpting. It suggests: deliberate use stakeholders is likely...
Applied visualization researchers often work closely with domain collaborators to explore new and useful applications of visualization. The early stages collaborations are typically time consuming for all stakeholders as piece together an understanding challenges from disparate discussions meetings. A number recent projects, however, report on the use creative visualization-opportunities (CVO) workshops accelerate applied work, eliciting a wealth requirements in few days focused work. Yet,...
Over four workshops, we collected community input on what people considered as persistent challenges in geovisualization with the participation of 72 experts from various sub-domains geographic information science and technology. We categorize analyze this bottom-up input, contrast it previously published research based five agenda papers (top-down). observe certain overlaps but also some interesting differences between top-down approaches. A synthesis two suggests three major issues...
This paper is a call to action for research and discussion on data visualization education. As evolves spreads through our professional personal lives, we need understand how support empower broad diverse community of learners in visualization. Data Visualization dynamic discipline that combines knowledge from different fields, tailored suit audiences contexts, frequently incorporates tacit knowledge. complex nature leads series interrelated challenges Driven by lack consolidated knowledge,...
We explore the effects of selecting alternative layouts in hierarchical displays that show multiple aspects large multivariate datasets, including spatial and temporal characteristics. Hierarchical this type condition a dataset by discrete variable values, creating nested graphical summaries resulting subsets which size, shape colour can be used to subset properties. These 'small multiples' are ordered conditioning values laid out hierarchically using dimensional stacking. Crucially, we...
The objective of this paper is to show how approaches for user-centered information visualization design and development are being applied in the context healthcare where users not familiar with techniques. We base our methods on frameworks which 'prototyping' plays an important role process. modify existing involve prototyping at early stage process as problem domain assessed. believe be essential, it increases users' awareness what techniques can offer them that enables participate more...
Comparing multiple variables to select those that effectively characterize complex entities is important in a wide variety of domains - geodemographics for example. Identifying correlate common practice remove redundancy, but correlation varies across space, with scale and over time, the frequently used global statistics hide potentially differentiating local variation. For more comprehensive robust insights into multivariate relations, these correlations need be assessed through various...
Fundamental to the effective use of visualization as an analytic and descriptive tool is assurance that presenting data visually provides capability making inferences from what we see. This paper explores two related approaches quantifying confidence may have in visual mapped geospatial data. We adapt Wickham et al.'s 'Visual Line-up' method a direct analogy with Null Hypothesis Significance Testing (NHST) propose new approach for generating more credible spatial null hypotheses. Rather than...
We propose a new approach to the visualization design and communication process, literate visualization, based upon extending, Donald Knuth's idea of programming. It integrates process writing data code with description choices that led implementation (design exposition). develop model exposition characterised by four designer architypes: evaluator, autonomist, didacticist rationalist. The is used justify key characteristics visualization: 'notebook' documents integrate live coding input,...
'Tag clouds' and 'tag maps' are introduced to represent geographically referenced text. In combination, these aspatial spatial views used explore a large structured spatio-temporal data set by providing overviews filtering text geography. Prototypes implemented using freely available technologies including Google Earth Yahoo! 's Tag Map applet. The interactive tag map cloud techniques the rapid prototyping method informally evaluated through successes limitations encountered. Preliminary...
The visual analysis of geographically referenced datasets with a large number attributes is challenging due to the fact that characteristics are highly dependent upon locations at which they focussed, and scale time measured. Specialized interactive methods required help analysts in understanding when these multiple aspects considered concurrently. Here, we develop attribute signatures-interactively crafted graphics show geographic variability statistics through extent dependency between...
In applied visualization research, artifacts are shaped by a series of small design decisions, many which evaluated quickly and informally via methods that often go unreported unverified. Such decisions influenced not only theory, but also the people context research. While existing models support level reliability throughout process, they fail to explicitly account for influence research in shaping resulting artifacts. this work, we look action (ADR) insight into addressing issue....
Small multiples enable comparison by providing different views of a single data set in dense and aligned manner. A common frame defines each view, which varies based upon values conditioning variable. An increasingly popular use this technique is to project two-dimensional locations into gridded space (e.g. grid maps), using the underlying distribution both as variable determine layout. Using whitespace layout has potential carry information, especially geographic context. Yet, effects doing...