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Šmajdek, Anamarija, e Jurij Selan. "The Impact of Active Visualisation of High School Students on the Ability to Memorise Verbal Definitions". Center for Educational Policy Studies Journal 6, n. 4 (31 dicembre 2016): 163–86. http://dx.doi.org/10.26529/cepsj.58.
Testo completoAbstract (sommario):
The era of visual communication influences the cognitive strategies of the individual. Education, too, must adjust to these changes, which raises questions regarding the use of visualisation in teaching. In the present study, we examine the impact of visualisation on the ability of high school students to memorise text. In the theoretical part of the research, we first clarify the concept of visualisation. We define the concept of active visualisation and visualisation as a means of acquiring and conveying knowledge, and we describe the different kinds of visualisation (appearance-based analogies and form-based analogies), specifically defining appearance-based schemata visualisations (where imagery is articulated in a typical culturally trained manner). In the empirical part of the research, we perform an experiment in which we evaluate the effects of visualisation on students’ ability to memorise a difficult written definition. According to the theoretical findings, we establish two hypotheses. In the first, we assume that the majority of the visualisations that students form will be appearance-based schemata visualisations. This hypothesis is based on the assumption that, in visualisation, people spontaneously use analogies based on imagery and schemas that are typical of their society. In the second hypothesis, we assume that active visualisation will contribute to the students’ ability to memorise text in a statistically significant way. This hypothesis is based on the assumption that the combination of verbal and visual experiences enhances cognitive learning. Both hypotheses were confirmed in the research. As our study only dealt with the impact of the most spontaneous type of appearancebased schemata visualisations, we see further possibilities in researching the influence of visualisations that are more complex formally.
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Garrote, Antonio, e María N. Moreno García. "LinkedVis an Information Visualisation Toolkit for RDF Data". International Journal on Semantic Web and Information Systems 9, n. 4 (ottobre 2013): 1–16. http://dx.doi.org/10.4018/ijswis.2013100101.
Testo completoAbstract (sommario):
LinkedVis implements a JavaScript and SVG data visualisation toolkit that can be used to generate a wide range of interactive information visualisations from RDF graphs using a grammar of graphics style syntax extended with operations for structural transformation of the RDF data graph. Additionally, LinkedVis visualisations make it possible to embed meta-data about the visualisation and the way different graphic components from the visualisation are related to the original RDF data. Insertion of meta-data transforms the visualisation into a self-describing piece of information that can be processed by an automatic agent to perform different tasks, like extracting data associated to a visual component, following the associated linked URIs or translate the visualisation to an entirely different underlying graphics system other than SVG.
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Idrissov, Agzam, Simon Rapp, Albert Albers e Anja M. Maier. "DEVELOPING SYSTEMS VISUALISATIONS IN DESIGN THROUGH A TYPOLOGY OF VISUAL TASKS: A MECHATRONIC CASE". Proceedings of the Design Society 1 (27 luglio 2021): 1213–22. http://dx.doi.org/10.1017/pds.2021.121.
Testo completoAbstract (sommario):
AbstractVisual representations are essential to design. Data-rich representations such as systems visualisations are gaining prominence in engineering practice. However, as such visualisations are often developed ad-hoc, we propose more systematically to link visual tasks with design-specific tasks for which the visualisations are used. Whereas research on such linking focuses mostly on CAD models and sketches, no such studies are yet available for systems visualisations. Thus, this paper introduces a typology of visual tasks from the Information Visualisation field to aid the development of systems visualisations in design. To build a visualisation using the typology, a case study with engineering students developing an autonomous robot was conducted. Through interviews and analysis of product representations used, design-specific tasks were identified and decomposed into visual tasks. Then, a visualisation that assisted the team in performing their design activities was created. Results illustrate the benefits of using such a typology to describe visual tasks and generate systems visualisations. The study suggests implications for researchers studying visual representations in design as well as for developers of systems visualisations.
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Engebretsen, Martin. "From Decoding a Graph to Processing a Multimodal Message". Nordicom Review 41, n. 1 (18 febbraio 2020): 33–50. http://dx.doi.org/10.2478/nor-2020-0004.
Testo completoAbstract (sommario):
AbstractData visualisation – in the forms of graphs, charts, and maps – represents a text type growing in prevalence and impact in many cultural domains; education, journalism, business, PR, and more. Research on data visualisation reception is scarce, particularly that related to interactive and dynamic forms of data visualisation in digital media. Taking an approach inspired by grounded theory, in this article I investigate the ways in which young students interact with data visualisations found in digital news media. Combining observations from reading sessions with ten in-depth interviews, I investigate how the informants read, interpreted, and responded emotionally to data visualisations including visual metaphors, interactivity, and animation.
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Hill, Rosemary Lucy. "The political potential of numbers: data visualisation in the abortion debate". Kvinder, Køn & Forskning, n. 1 (5 settembre 2017): 83–96. http://dx.doi.org/10.7146/kkf.v26i1.109789.
Testo completoAbstract (sommario):
Data visualisation has been argued to have the power to ‘change the world’, implicitly for the better, but when it comes to abortion, both sides make moral claims to ‘good’. Visualisation conventions of clean lines and shapes simplify data, lending them a rhetoric of neutrality, as if the data is the whole story. It is imperative, therefore, to examine how data visualisations are used to shape women’s lives. This article draws on the findings of the Persuasive Data project . Google Image Scraper was used to locate abortion-related visualisations circulating online. The images, their web locations, and data use were social semiotically analysed to understand their visual rhetoric and political use. Anti-abortion groups are more likely to use data visualisation than pro-choice groups, thereby simplifying the issue and mobilising the rhetoric of neutrality. I argue that data visualisations are being used as a hindrance to women’s access to abortion, and that the critique of such visualisations needs to come from feminists. This article extends discussions of how data is often reified as objective, by showing how the rhetoric of objectivity within data visualisation conventions is harnessed to do work in the world that is potentially very damaging to women’s rights.
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Meier, Sebastian, e Katrin Glinka. "The Individual in the Data — the Aspect of Personal Relevance in Designing Casual Data Visualisations". i-com 16, n. 3 (20 dicembre 2017): 247–65. http://dx.doi.org/10.1515/icom-2017-0025.
Testo completoAbstract (sommario):
AbstractOver the last two decades, data visualisation has diffused into the broader realm of mass communication. Before this shift, tools and displays of data-driven geographic- and information visualisation were mostly used in expert contexts. By now, they are also used in casual contexts, for example on newspaper websites, government data portals and many other public outlets. This diversification of the audience poses new challenges within the visualisation community. In this paper we propose personal relevance as one factor to be taken into account when designing casual data visualisations, which are meant for the communication with non-experts. We develop a conceptual model and present a related set of design techniques for interactive web-based visualisations that are aimed at activating personal relevance. We discuss our proposed techniques by applying them to a use case on the visualisation of air pollution in London (UK).
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Nash, Kathryn, Verity Trott e William Allen. "The politics of data visualisation and policy making". Convergence: The International Journal of Research into New Media Technologies 28, n. 1 (febbraio 2022): 3–12. http://dx.doi.org/10.1177/13548565221079156.
Testo completoAbstract (sommario):
Data visualisation has become ubiquitous in everyday life, from seeing images in news media to tracking individual health indicators. While the effects of data visualisation on society and people have been explored within a range of literature, there has been far less attention paid to the interconnectedness of data visualisation and policy making. In this special issue, we explore how data visualisation matters for policy priorities, processes and outcomes; how it reflects the demands and constraints posed by specific policy problems; and finally, what data visualisations reveal about broader political, social, and cultural shifts and the implications for policy.
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Donohoe, David, e Eamon Costello. "Data Visualisation Literacy in Higher Education: An Exploratory Study of Understanding of a Learning Dashboard Tool". International Journal of Emerging Technologies in Learning (iJET) 15, n. 17 (11 settembre 2020): 115. http://dx.doi.org/10.3991/ijet.v15i17.15041.
Testo completoAbstract (sommario):
The visualisation of data has become ubiquitous. Visualisations are used to represent data in a way that is easy to understand and useful in our lives. Each data visualisation needs to be suitable to extract the correct information to complete a task and make an informed decision while minimising the impact of biases. To achieve this, the ability to create and read visualisations has become as important as the ability to read and write. Therefore, the Information Visualisation community is applying more attention to literacy and decision making in data vis-ualisations. Until recently, researchers lacked valid and reliable test in-struments to measure the literacy of users or the taxonomy to detect biased judgement in data visualisations. A literature review showed there is relatively little research on data visualisations for different user data literacy levels in authentic settings and a lack of studies that pro-vide evidence for the presence of cognitive biases in data visualisa-tions. This exploratory research study was undertaken to develop a method to assess perceived usefulness and confidence in reporting dashboards within higher education by adapting existing research in-struments. A survey was designed to test perceived usefulness, per-ceived skill and 24 multiple-choice test items covering six data visuali-sations based on eight tasks. The study was sent to 157 potential par-ticipants, with a response rate of 20.38%. The results showed data vis-ualisations are useful, but the purpose of some data visualisations is not always understood. Also, we showed there is a consensus that re-spondents perceive their data visualisation literacy is higher than they believe their peers to be. However, the higher their overconfidence, the lower their actual data visualisation literacy score. Finally, we discuss the benefits, limitations and possible future research areas.
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Allen, William L. "Visual brokerage: Communicating data and research through visualisation". Public Understanding of Science 27, n. 8 (5 febbraio 2018): 906–22. http://dx.doi.org/10.1177/0963662518756853.
Testo completoAbstract (sommario):
Researchers increasingly use visualisation to make sense of their data and communicate findings more widely. But these are not necessarily straightforward processes. Theories of knowledge brokerage show how sociopolitical contexts and intermediary organisations that translate research for public audiences shape how users engage with evidence. Applying these ideas to data visualisation, I argue that several kinds of brokers (such as data collectors, designers and intermediaries) link researchers and audiences, contributing to the ways that people engage with visualisations. To do this, I draw on qualitative focus groups that elicited non-academic viewers’ reactions to visualisations of data about UK migration. The results reveal two important features of engagement: perceptions of brokers’ credibility and feelings of surprise arising from visualisations’ content and design. I conclude by arguing that researchers, knowledge brokers and the public produce – as well as operate within – a complex visualisation space characterised by mutual, bi-directional connections.
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Graham, Martin, e Jessie Kennedy. "A Survey of Multiple Tree Visualisation". Information Visualization 9, n. 4 (5 novembre 2009): 235–52. http://dx.doi.org/10.1057/ivs.2009.29.
Testo completoAbstract (sommario):
This article summarises the current state of research into multiple tree visualisations. It discusses the spectrum of current representation techniques used on single trees, pairs of trees and finally multiple trees, in order to identify which representations are best suited to particular tasks and to find gaps in the representation space, in which opportunities for future multiple tree visualisation research may exist. The application areas from where multiple tree data are derived are enumerated, and the distinct structures that multiple trees make in combination with each other and the effect on subsequent approaches to their visualisation are discussed, along with the basic high-level goals of existing multiple tree visualisations.
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Sibolla, B. H., T. Van Zyl e S. Coetzee. "TOWARDS THE DEVELOPMENT OF A TAXONOMY FOR VISUALISATION OF STREAMED GEOSPATIAL DATA". ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences III-2 (2 giugno 2016): 129–36. http://dx.doi.org/10.5194/isprsannals-iii-2-129-2016.
Testo completoAbstract (sommario):
Geospatial data has very specific characteristics that need to be carefully captured in its visualisation, in order for the user and the viewer to gain knowledge from it. The science of visualisation has gained much traction over the last decade as a response to various visualisation challenges. During the development of an open source based, dynamic two-dimensional visualisation library, that caters for geospatial streaming data, it was found necessary to conduct a review of existing geospatial visualisation taxonomies. The review was done in order to inform the design phase of the library development, such that either an existing taxonomy can be adopted or extended to fit the needs at hand. The major challenge in this case is to develop dynamic two dimensional visualisations that enable human interaction in order to assist the user to understand the data streams that are continuously being updated. This paper reviews the existing geospatial data visualisation taxonomies that have been developed over the years. Based on the review, an adopted taxonomy for visualisation of geospatial streaming data is presented. Example applications of this taxonomy are also provided. The adopted taxonomy will then be used to develop the information model for the visualisation library in a further study.
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Sibolla, B. H., T. Van Zyl e S. Coetzee. "TOWARDS THE DEVELOPMENT OF A TAXONOMY FOR VISUALISATION OF STREAMED GEOSPATIAL DATA". ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences III-2 (2 giugno 2016): 129–36. http://dx.doi.org/10.5194/isprs-annals-iii-2-129-2016.
Testo completoAbstract (sommario):
Geospatial data has very specific characteristics that need to be carefully captured in its visualisation, in order for the user and the viewer to gain knowledge from it. The science of visualisation has gained much traction over the last decade as a response to various visualisation challenges. During the development of an open source based, dynamic two-dimensional visualisation library, that caters for geospatial streaming data, it was found necessary to conduct a review of existing geospatial visualisation taxonomies. The review was done in order to inform the design phase of the library development, such that either an existing taxonomy can be adopted or extended to fit the needs at hand. The major challenge in this case is to develop dynamic two dimensional visualisations that enable human interaction in order to assist the user to understand the data streams that are continuously being updated. This paper reviews the existing geospatial data visualisation taxonomies that have been developed over the years. Based on the review, an adopted taxonomy for visualisation of geospatial streaming data is presented. Example applications of this taxonomy are also provided. The adopted taxonomy will then be used to develop the information model for the visualisation library in a further study.
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Craven, MP, R. Goodwin, M. Rawsthorne, D. Butler, P. Waddingham, S. Brown e M. Jamieson. "Try to see it my way: exploring the co-design of visual presentations of wellbeing through a workshop process". Perspectives in Public Health 139, n. 3 (8 aprile 2019): 153–61. http://dx.doi.org/10.1177/1757913919835231.
Testo completoAbstract (sommario):
Aims: A 10-month project funded by the NewMind network sought to develop the specification of a visualisation toolbox that could be applied on digital platforms (web- or app-based) to support adults with lived experience of mental health difficulties to present and track their personal wellbeing in a multi-media format. Methods: A participant co-design methodology, Double Diamond from the Design Council (Great Britain), was used consisting of four phases: Discover – a set of literature and app searches of wellbeing and health visualisation material; Define – an initial workshop with participants with lived experience of mental health problems to discuss wellbeing and visualisation techniques and to share personal visualisations; Develop – a second workshop to add detail to personal visualisations, for example, forms of media to be employed, degree of control over sharing; and Deliver – to disseminate the learning from the exercise. Results: Two design workshops were held in December 2017 and April 2018 with 13 and 12 experts-by-experience involved, respectively, including two peer researchers (co-authors) and two individual-carer dyads in each workshop, with over 50% of those being present in both workshops. A total of 20 detailed visualisations were produced, the majority focusing on highly personal and detailed presentations of wellbeing. Discussion: While participants concurred on a range of typical dimensions of wellbeing, the individual visualisations generated were in contrast to the techniques currently employed by existing digital wellbeing apps and there was a great diversity in preference for different visualisation types. Participants considered personal visualisations to be useful as self-administered interventions or as a step towards seeking help, as well as being tools for self-appraisal. Conclusion: The results suggest that an authoring approach using existing apps may provide the high degree of flexibility required. Training on such tools, delivered via a module on a recovery college course, could be offered.
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Fileborn, Bianca, e Verity Trott. "“It ain’t a compliment”: Feminist data visualisation and digital street harassment advocacy". Convergence: The International Journal of Research into New Media Technologies 28, n. 1 (29 settembre 2021): 127–49. http://dx.doi.org/10.1177/13548565211045536.
Testo completoAbstract (sommario):
In an era of datafication, data visualisation is playing an increasing role in civic meaning-making processes. However, the conventions of data visualisation have been criticised for their reductiveness and rhetoric of neutrality and there have been recent efforts to develop feminist principles for designing data visualisations that are compatible with feminist epistemologies. In this article, we aim to examine how data visualisation is used in feminist activism and by feminist activists. Drawing on the example of digital street harassment activism, we analyse how street harassment is visualised in and through a selection of prominent activist social media accounts. We consider the platform affordances utilised by activists, and how these are harnessed in making street harassment ‘knowable'. Moreover, we critically interrogate which and whose experiences are ‘knowable’ via digital techniques, and what remains obscured and silenced. In analysing digital feminist activists’ practices, we argue that what constitutes ‘data visualisation’ itself must be situated within feminist epistemologies and praxis that centre lived experience as the starting point for knowledge production. Such an approach challenges and disrupts normative constructions of what constitutes data visualisation. Our findings demonstrate how feminist activists are adopting ‘traditional’ practices of speaking out and consciousness-raising to the digital sphere in the creation of a range of visualisations that represent the issue of street harassment. We consider the efficacy of these visualisations for achieving their intended purpose and how they might translate to policy and government responses, if this is indeed their goal. Further, we document a tension between feminist epistemologies and the prevailing logic of datafication or dataism and note how in an attempt to unite the two, some digital feminist activism has contributed to reproducing existing power structures, raising concerning implications at the policy level.
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Kubrak, Kateryna, Fredrik Milani e Alexander Nolte. "A visual approach to support process analysts in working with process improvement opportunities". Business Process Management Journal 29, n. 8 (3 aprile 2023): 101–32. http://dx.doi.org/10.1108/bpmj-10-2021-0631.
Testo completoAbstract (sommario):
PurposeWhen improving business processes, process analysts can use data-driven methods, such as process mining, to identify improvement opportunities. However, despite being supported by data, process analysts decide which changes to implement. Analysts often use process visualisations to assess and determine which changes to pursue. This paper helps explore how process mining visualisations can aid process analysts in their work to identify, prioritise and communicate business process improvement opportunities.Design/methodology/approachThe study follows the design science methodology to create and evaluate an artefact for visualising identified improvement opportunities (IRVIN).FindingsA set of principles to facilitate the visualisation of process mining outputs for analysts to work with improvement opportunities was suggested. Particularly, insights into identifying, prioritising and communicating process improvement opportunities from visual representation are outlined.Originality/valuePrior work focuses on visualisation from the perspectives – among others – of process exploration, process comparison and performance analysis. This study, however, considers process mining visualisation that aids in analysing process improvement opportunities.
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Wang, Yao, Yue Jiang, Zhiming Hu, Constantin Ruhdorfer, Mihai Bâce e Andreas Bulling. "VisRecall++: Analysing and Predicting Visualisation Recallability from Gaze Behaviour". Proceedings of the ACM on Human-Computer Interaction 8, ETRA (20 maggio 2024): 1–18. http://dx.doi.org/10.1145/3655613.
Testo completoAbstract (sommario):
Question answering has recently been proposed as a promising means to assess the recallability of information visualisations. However, prior works are yet to study the link between visually encoding a visualisation in memory and recall performance. To fill this gap, we propose VisRecall++ -- a novel 40-participant recallability dataset that contains gaze data on 200 visualisations and 1,000 questions, including identifying the title and retrieving values. We measured recallability by asking participants questions after they observed the visualisation for 10 seconds. Our analyses reveal several insights, such as saccade amplitude, number of fixations, and fixation duration significantly differ between high and low recallability groups. Finally, we propose GazeRecallNet -- a novel computational method to predict recallability from gaze behaviour that outperforms the state-of-the-art model RecallNet and three other baselines on this task. Taken together, our results shed light on assessing recallability from gaze behaviour and inform future work on recallability-based visualisation optimisation.
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Wilhelm, Adalbert, e Susan VanderPlas. "Visual Narratives of the Covid-19 pandemic". Journal of Data Science, Statistics, and Visualisation 2, n. 7 (28 novembre 2022): 84–113. http://dx.doi.org/10.52933/jdssv.v2i7.64.
Testo completoAbstract (sommario):
Covid-19 has sparked a worldwide interest in understanding the dynamic evo- lution of a pandemic and tracking the effectiveness of preventive measures and rules. For this reason, numerous media and research groups have produced com- prehensive data visualisations to illustrate the relevant trends and figures. In this paper, we will look at a selection of Covid 19 data visualisations to evaluate and discuss the currently established visualisation tools in terms of their ability to provide a communication channel both within the data science team and between data analysts, domain experts and a general interested audience. Although there is no set catalogue of evaluation criteria for data visualisations, we will try to give an overview of the different core aspects of visualisation evaluation and their competing principles.
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Kavaz, Ecem, Anna Puig e Inmaculada Rodríguez. "Chatbot-Based Natural Language Interfaces for Data Visualisation: A Scoping Review". Applied Sciences 13, n. 12 (11 giugno 2023): 7025. http://dx.doi.org/10.3390/app13127025.
Testo completoAbstract (sommario):
Rapid growth in the generation of data from various sources has made data visualisation a valuable tool for analysing data. However, visual analysis can be a challenging task, not only due to intricate dashboards but also when dealing with complex and multidimensional data. In this context, advances in Natural Language Processing technologies have led to the development of Visualisation-oriented Natural Language Interfaces (V-NLIs). In this paper, we carry out a scoping review that analyses synergies between the fields of Data Visualisation and Natural Language Interaction. Specifically, we focus on chatbot-based V-NLI approaches and explore and discuss three research questions. The first two research questions focus on studying how chatbot-based V-NLIs contribute to interactions with the Data and Visual Spaces of the visualisation pipeline, while the third seeks to know how chatbot-based V-NLIs enhance users’ interaction with visualisations. Our findings show that the works in the literature put a strong focus on exploring tabular data with basic visualisations, with visual mapping primarily reliant on fixed layouts. Moreover, V-NLIs provide users with restricted guidance strategies, and few of them support high-level and follow-up queries. We identify challenges and possible research opportunities for the V-NLI community such as supporting high-level queries with complex data, integrating V-NLIs with more advanced systems such as Augmented Reality (AR) or Virtual Reality (VR), particularly for advanced visualisations, expanding guidance strategies beyond current limitations, adopting intelligent visual mapping techniques, and incorporating more sophisticated interaction methods.
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Opgenhaffen, Loes. "Tradition in Transition: Technology and Change in Archaeological Visualisation Practice". Open Archaeology 7, n. 1 (1 gennaio 2021): 1685–708. http://dx.doi.org/10.1515/opar-2020-0218.
Testo completoAbstract (sommario):
Abstract Archaeologists are the mediators between fragmented, and often contested, pasts and the momentary present. To record, organise, interpret, and reconstruct complex narratives of the past and to communicate these to present-day peers and the public, they use a wide range of visualisation methods. As such, visualisation methods form an intrinsic part of the representation of practical and intellectual findings, being crucial to knowledge production in archaeology. The adoption and adaptation of digital visualisation technology changes the way archaeologists shape new knowledge. However, for a discipline that is particularly concerned with how technology had an effect on past societies, for example, the impact of the potter’s wheel on local ceramic production strategies, archaeologists have a remarkably limited awareness of how current (digital) technology has an impact on their own visualisation practice and the subsequent knowledge production. This study presents the conceptual framework “tradition in transition,” which integrates technological and visualisation methodologies, and aims to provide a framework to analyse the underlying processes and mechanisms that shape and change the practice of creating visualisations.
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Kehl, C., R. P. B. Fischer e E. van Sebille. "PRACTICES, PITFALLS AND GUIDELINES IN VISUALISING LAGRANGIAN OCEAN ANALYSES". ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences V-4-2021 (17 giugno 2021): 217–24. http://dx.doi.org/10.5194/isprs-annals-v-4-2021-217-2021.
Testo completoAbstract (sommario):
Abstract. The Lagrangian analysis of particulate matter, biota and drifters, which are dispersed by turbulent fluid currents, is a cornerstone of oceanographic studies, covering diverse study objectives. The results of Lagrangian simulations and observations is predominantly visualised by means of easy-access plotting interfaces and simple presentation techniques. We analysed over 50 publications from the years 2010–2020 with respect to their visual design to deduce common visualisation practices in the domain. Individual figures are analysed towards adherence to visualisation best-practices, algebraic visualisation guidelines and the IPCC visual style guide. In this article, we present the resulting best-practices and common pitfalls in the design of Lagrangian ocean visualisations. Based on this visual study, we highlight that raising awareness of established visual guidelines may have a higher impact on improving the visual quality of publications in oceanography than the vigorous development of more general-purpose visualisation tools.
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Hadley, Martin John, e Howard Noble. "Promoting Interactive Visualisation at University of Oxford: The Live Data Network". International Journal of Digital Curation 11, n. 1 (28 ottobre 2016): 172. http://dx.doi.org/10.2218/ijdc.v11i1.418.
Testo completoAbstract (sommario):
This article introduces the Live Data project funded by the Research IT Board of the University of Oxford’s IT Services department. The primary aim of the project is to support academics in creating interactive visualisations using a variety of cloud-based visualisation services, which the academic can freely embed within academic journals, blogs and personal websites through the use of iframes. To achieve this the project has been funded from October 2015 to March 2017 to recruit visualisation case studies from across the University and to develop software agnostic workflows for the creation of interactive visualisations. Within this report we present interactive visualisations as a vital component of the academic’s toolkit for engaging potential collaborators and the general public with their research data – thereby bridging the so-called ‘data gap’ between data, publication and researcher.Â
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Noble, Shona Kirsty. "Fingal's Cave". Audiovisual Data in Digital Humanities 7, n. 14 (31 dicembre 2018): 5. http://dx.doi.org/10.18146/2213-0969.2018.jethc150.
Testo completoAbstract (sommario):
Fingal’s Cave: an Audiovisual Experience is an immersive virtual reality application that combines 3D models, a narrative soundscape and interactive auralisation in a recreation of a visit to Fingal’s Cave. This research explores the importance of audio in heritage visualisations and its practical implementation. Fingal’s Cave is a sea cave on the Isle of Staffa off the west coast of Scotland revered for its extraordinary acoustics. Audio is extremely important in the history and culture of Fingal’s Cave and it has long been romanticised, inspiring countless folklore, art, poetry and music. The visualisation is designed to encourage viewers to become a part of the cultural narrative and explore the cave for themselves, move around and speak to hear their voice auralised as it would be inside the cave. This is the first time the acoustic characteristics of a heritage site have been included in a visualisation in this interactive manner. This paper reviews whether auralisation is effective and meaningful and supports a creative response to heritage sites. The impact of the visualisation in terms of engaging with communities of interest and in the field of audio in heritage visualisation is discussed. The research suggests it is necessary that audio be included in heritage visualisations to give a full and complete understanding of how people experience it.
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Roberts, Jonathan C., Peter W. S. Butcher e Panagiotis D. Ritsos. "One View Is Not Enough: Review of and Encouragement for Multiple and Alternative Representations in 3D and Immersive Visualisation". Computers 11, n. 2 (3 febbraio 2022): 20. http://dx.doi.org/10.3390/computers11020020.
Testo completoAbstract (sommario):
The opportunities for 3D visualisations are huge. People can be immersed inside their data, interface with it in natural ways, and see it in ways that are not possible on a traditional desktop screen. Indeed, 3D visualisations, especially those that are immersed inside head-mounted displays are becoming popular. Much of this growth is driven by the availability, popularity and falling cost of head-mounted displays and other immersive technologies. However, there are also challenges. For example, data visualisation objects can be obscured, important facets missed (perhaps behind the viewer), and the interfaces may be unfamiliar. Some of these challenges are not unique to 3D immersive technologies. Indeed, developers of traditional 2D exploratory visualisation tools would use alternative views, across a multiple coordinated view (MCV) system. Coordinated view interfaces help users explore the richness of the data. For instance, an alphabetical list of people in one view shows everyone in the database, while a map view depicts where they live. Each view provides a different task or purpose. While it is possible to translate some desktop interface techniques into the 3D immersive world, it is not always clear what equivalences would be. In this paper, using several case studies, we discuss the challenges and opportunities for using multiple views in immersive visualisation. Our aim is to provide a set of concepts that will enable developers to perform critical thinking, creative thinking and push the boundaries of what is possible with 3D and immersive visualisation. In summary developers should consider how to integrate many views, techniques and presentation styles, and one view is not enough when using 3D and immersive visualisations.
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Bayliss, Richard. "ARCHAEOLOGICAL SURVEY AND VISUALISATION: THE VIEW FROM BYZANTIUM". Late Antique Archaeology 1, n. 1 (2003): 26–313. http://dx.doi.org/10.1163/22134522-90000012.
Testo completoAbstract (sommario):
This paper will explore the relationship between the methodologies used in archaeology for recording buildings and landscapes and the development of computer visualisation technology, with specific reference to late antique and Byzantine archaeology. The principal aim is to highlight the applicability of visualisation technologies as the critical solutions to the presentation and investigation of survey data and reciprocally to demonstrate that meaningful computer visualisations benefit from a secure underpinning of archaeological survey data. My intention is to show that computer visualisation should not be seen solely as a vehicle for archaeological reconstruction but rather can be viewed as an integral part of the process of interpretation. The first of two case studies is the Anastasian Wall Project, a survey of a massive linear fortification in Turkish Thrace, which presented a series of practical problems both in terms of data capture and representation. The applicability of computer-based techniques for the integration and visualisation of various forms of survey data will be further investigated through the study of the Alacami, a multi-period Byzantine church in Cilicia, before some final comment is made on the current and potential roles of computer visualisation in Byzantine archaeology.
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Beurskens, Kristine, Frank Meyer e Francis Harvey. "Qualitative visualisation – perspectives and potentials for population geography". Geographica Helvetica 77, n. 3 (26 agosto 2022): 317–22. http://dx.doi.org/10.5194/gh-77-317-2022.
Testo completoAbstract (sommario):
Abstract. The growing influence of qualitative visualisations that support qualitative and mixed methods approaches in population geography specifically open new perspectives for theoretical and methodological developments. Whereas qualitative research using visualisation remains rare when compared to quantitative approaches, several cases of innovation can be identified in population geography. Furthermore, we identified three favourable conditions to potentially inspire new methods of visualisation: the growing relevance of art-based research, an increasing number of transdisciplinary experiences, and the contemporary critical debate on communicating using maps. Based on this diagnosis, we call for systematic experiments and exchange that can inform an intense transdisciplinary academic debate on key epistemological questions, on different approaches to visualisation, and on new tools and techniques to visualise in population geography and beyond.
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Beale, Russell, Robert J. Hendley, Andy Pryke e Barry Wilkins. "Nature-Inspired Visualisation of Similarity and Relationships in Human Systems and Behaviours". Information Visualization 5, n. 4 (dicembre 2006): 260–70. http://dx.doi.org/10.1057/palgrave.ivs.9500135.
Testo completoAbstract (sommario):
Visualisations of complex interrelationships have the potential to be complex and require a lot of cognitive input. We have drawn analogues from natural systems to create new visualisation approaches that are more intutive and easier to work with. We use nature-inspired concepts to provide cognitive amplification, moving the load from the user's cognitive to their perceptual systems and thus allowing them to focus their cognitive resources where they are most appropriate. Two systems are presented: one uses a physical-based model to construct the visualisation, while the other uses a biological inspiration. Their application to four visualisation tasks is discussed: the structure of information browsing on the internet; the structure of parts of the web itself; to aid the refinement of queries to a digital library; and to compare different documents for similar content.
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Gibson, Helen, Joe Faith e Paul Vickers. "A survey of two-dimensional graph layout techniques for information visualisation". Information Visualization 12, n. 3-4 (5 settembre 2012): 324–57. http://dx.doi.org/10.1177/1473871612455749.
Testo completoAbstract (sommario):
Many algorithms for graph layout have been devised over the last 30 years spanning both the graph drawing and information visualisation communities. This article first reviews the advances made in the field of graph drawing that have then often been applied by the information visualisation community. There then follows a discussion of a range of techniques developed specifically for graph visualisations. Graph drawing algorithms are categorised into the following approaches: force-directed layouts, the use of dimension reduction in graph layout and computational improvements including multi-level techniques. Methods developed specifically for graph visualisation often make use of node-attributes and are categorised based on whether the attributes are used to introduce constraints to the layout, provide a clustered view or define an explicit representation in two-dimensional space. The similarities and distinctions between these techniques are examined and the aim is to provide a detailed assessment of currently available graph layout techniques, specifically how they can be used by visualisation practitioners, and to motivate further research in the area.
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Novak, Andrej, e Krištof Oštir. "Towards Better Visualisation of Alpine Quaternary Landform Features on High-Resolution Digital Elevation Models". Remote Sensing 13, n. 21 (20 ottobre 2021): 4211. http://dx.doi.org/10.3390/rs13214211.
Testo completoAbstract (sommario):
Alpine topography is formed by a complex series of geomorphological processes that result in a vast number of different landforms. The youngest and most diverse landforms are various Quaternary sedimentary bodies, each characterised by its unique landform features. The formation of Quaternary sedimentary bodies and their features derive from the dominant building sedimentary processes. In recent years, studies of Quaternary sedimentary bodies and processes have been greatly aided by the use of digital elevation models (DEMs) derived by airborne laser scanning (ALS). High-resolution DEMs allow detailed mapping of sedimentary bodies, detection of surface changes, and recognition of the building sedimentary processes. DEMs are often displayed as hillshaded reliefs, the most common visualisation technique, which suffers from the limitation of a single illumination source. As a result, features can be barely visible or even invisible to the viewer if they are parallel to the light source or hidden in the shadow. These limitations become challenging when representing landforms and subtle landscape features in a diverse alpine topography. In this study, we focus on eleven visualisations of Quaternary sedimentary bodies and their sedimentary and morphological features on a 0.5 m resolution DEM. We qualitatively compare analytical hillshading with a set of visualisation techniques contained in the Raster Visualisation Toolbox software, primarily hillshading from multiple directions RGB, 8-bit sky view factor and 8-bit slope. The aim is to determine which visualisation technique is best suited for visual recognition of sedimentary bodies and sedimentation processes in complex alpine landscapes. Detailed visual examination of previously documented Pleistocene moraine and lacustrine deposits, Holocene alluvial fans, scree deposits, debris flow and fluvial deposits on the created visualisations revealed several small-scale morphological and sedimentary features that were previously difficult or impossible to detect on analytical hillshading and aerial photographs. Hillshading from multiple directions resulted in a visualisation that could be universally applied across the mountainous and hilly terrains. In contrast, 8-bit sky view factor and 8-bit slope visualisations created better visibility and facilitated interpretation of subtle and small-scale (less than ten metres) sedimentary and morphological features.
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Joseph, Pauline, Aaron Justin Kent, Peter Damian Green, Matthew Robinson e Amanda Bellenger. "Analysis of EZproxy server logs to visualise research activity in Curtin’s online library". Library Hi Tech 37, n. 4 (18 novembre 2019): 845–65. http://dx.doi.org/10.1108/lht-04-2018-0050.
Testo completoAbstract (sommario):
Purpose The purpose of this paper is to develop data visualisation proof of concept prototypes that will enable the Curtin University Library team to explore its users’ information-seeking behaviour and collection use online by analysing the library’s EZproxy logs. Design/methodology/approach Curtin Library’s EZproxy log file data from 2013 to 2017 is used to develop the data visualisation prototypes using Unity3D software. Findings Two visualisation prototypes from the EZproxy data set are developed. The first, “Global Visualisation of Curtin Research Activity”, uses a geographical map of the world as a platform to show where each research request comes from, the time each is made and the file size of the request. The second prototype, “Database Usage Visualisation”, shows the use of the library’s various subscription databases by staff and students daily, over a month in April 2017. Research limitations/implications The paper has following limitations: working to a tight timeline of ten weeks; time taken to cleanse noise data; and requirements for storing and hosting the voluminous data sets. Practical implications The prototypes provide visual evidence of the use of Curtin Library’s digital resources at any time and from anywhere by its users, demonstrating the demand for the library’s online service offerings. These prototype evidence-based data visualisations empower the library to communicate in a compelling and interesting way how its services and subscriptions support Curtin University’s missions. Originality/value The paper provides innovative approaches to create immersive 3D data visualisation prototypes to make sense of complex EZproxy data sets.
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Bovo, Riccardo, Daniele Giunchi, Muna Alebri, Anthony Steed, Enrico Costanza e Thomas Heinis. "Cone of Vision as a Behavioural Cue for VR Collaboration". Proceedings of the ACM on Human-Computer Interaction 6, CSCW2 (7 novembre 2022): 1–27. http://dx.doi.org/10.1145/3555615.
Testo completoAbstract (sommario):
Mutual awareness of visual attention is essential for collaborative work. In the field of collaborative virtual environments (CVE), it has been proposed to use Field-of-View (FoV) frustum visualisations as a cue to support mutual awareness during collaboration. Recent studies on FoV frustum visualisations focus on asymmetric collaboration with AR/VR hardware setups and 3D reconstructed environments. In contrast, we focus on the general-purpose CVEs (i.e., VR shared offices), whose popularity is increasing due to the availability of low-cost headsets, and the restrictions imposed by the pandemic. In these CVEs collaboration roles are symmetrical, and the same 2D content available on desktop computers is displayed on 2D surfaces in a 3D space (VR screens). We prototyped one such CVE to evaluate FoV frustrum visualisation within this collaboration scenario. We also implement a FoV visualisation generated from an average fixation map (AFM), therefore directly generated by users' gaze behaviour which we call Cone of Vision (CoV). Our approach to displaying the frustum visualisations is tailored for 2D surfaces in 3D space and allows for self-awareness of this visual cue. We evaluate CoV in the context of a general exploratory data analysis (EDA) with 10 pairs of participants. Our findings indicate that CoV is beneficial during shifts between independent and collaborative work and supports collaborative progression across the visualisation. Self-perception of the CoV improves visual attention coupling, reduces the number of times users watch the collaborator's avatars and offers a consistent representation of the shared reality.
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Bravo, A., e A. M. Maier. "IMMERSIVE VISUALISATIONS IN DESIGN: USING AUGMENTED REALITY (AR) FOR INFORMATION PRESENTATION". Proceedings of the Design Society: DESIGN Conference 1 (maggio 2020): 1215–24. http://dx.doi.org/10.1017/dsd.2020.33.
Testo completoAbstract (sommario):
AbstractImmersive visualisations introduce new possibilities for experiencing design, and as such for presenting information. To date, studies in design have focused mostly on immersive visualisations supporting product decisions. However, little attention has been paid to information presentation, e.g. in design reviews, for decisions in the boardroom, and/or for client presentations. This study with industry practitioners identifies information presentation practices and challenges, develops an immersive visualisation prototype, and explores opportunities for the use of immersive visualisations.
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Percival, Sarah Ellen, Mark Gaterell e David Hutchinson. "Effective flood risk visualisation". Natural Hazards 104, n. 1 (18 luglio 2020): 375–96. http://dx.doi.org/10.1007/s11069-020-04173-8.
Testo completoAbstract (sommario):
Abstract The effective communication of flood risk offers the opportunity to ensure communities can adapt and respond appropriately to changing local conditions. At a time of diminishing resources, such local responses, which can empower communities and make them more resilient to uncertain future flood events, are vital. The most general and accessible type of flood communication are flood risk visualisations, i.e. pre-prepared emergency flood maps. However, evidence suggests there is much we can do to improve their ability to communicate the complexities of flood risk to a range of stakeholders. This paper considers the development of flood risk visualisation approaches in the UK, presenting findings from a series of targeted workshops over twelve months, where the needs and criteria of stakeholder groups for effective flood risk visualisation were assessed via co-creative processes. Key stakeholders included local authorities, emergency responders, vulnerable homeowners, Environment Agency, business owners and, crucially, communities. These users need certain requirements to be considered in order for future flood risk visualisation to be effective, in particular simplicity, a central hub of information, different visuals available for the same data sets/problems, different maps available for different users, consistent terminology and integrated community knowledge (e.g. local flood groups/help).
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Pereira, Arnaldo, João Rafael Almeida, Rui Pedro Lopes e José Luís Oliveira. "Semantic Data Visualisation for Biomedical Database Catalogues". Healthcare 10, n. 11 (15 novembre 2022): 2287. http://dx.doi.org/10.3390/healthcare10112287.
Testo completoAbstract (sommario):
Biomedical databases often have restricted access policies and governance rules. Thus, an adequate description of their content is essential for researchers who wish to use them for medical research. A strategy for publishing information without disclosing patient-level data is through database fingerprinting and aggregate characterisations. However, this information is still presented in a format that makes it challenging to search, analyse, and decide on the best databases for a domain of study. Several strategies allow one to visualise and compare the characteristics of multiple biomedical databases. Our study focused on a European platform for sharing and disseminating biomedical data. We use semantic data visualisation techniques to assist in comparing descriptive metadata from several databases. The great advantage lies in streamlining the database selection process, ensuring that sensitive details are not shared. To address this goal, we have considered two levels of data visualisation, one characterising a single database and the other involving multiple databases in network-level visualisations. This study revealed the impact of the proposed visualisations and some open challenges in representing semantically annotated biomedical datasets. Identifying future directions in this scope was one of the outcomes of this work.
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Biddle, James, Waseem Kamleh e Derek Leinweber. "Visualisations of Centre Vortices". EPJ Web of Conferences 245 (2020): 06010. http://dx.doi.org/10.1051/epjconf/202024506010.
Testo completoAbstract (sommario):
The centre vortex structure of the vacuum is visualised through the use of novel 3D visualisation techniques. These visualisations allow for a hands-on examination of the centre-vortex matter present in the QCD vacuum, and highlights some of the key features of the centre-vortex model. The connection between topological charge and singular points is also explored. This work highlights the useful role visualisations play in the exploration of the QCD vacuum.
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Cuthbert, Carol E., e Noel J. Pearse. "Strategic Data Pattern Visualisation". Journal of Systemics, Cybernetics and Informatics 20, n. 1 (gennaio 2022): 122–41. http://dx.doi.org/10.54808/jsci.20.01.122.
Testo completoAbstract (sommario):
Data visualisation reveals patterns and provides insights that lead to actions from management, thereby playing a mediating role in the relationship between the internal resources of a firm and its financial performance. In this chapter, contingent resource-based theory is applied to the analysis of big data, treating its visualisation as a mode of interdisciplinary communication. In service industries in general and the legal industry in particular, big data analytics (BDA) is emerging as a decision-making tool for management to achieve competitive advantage. Traditionally, data scientists have delved into data armed with a hypothesis, but increasingly they explore data to discern patterns that lead to hypotheses that are then tested. These big data analytics tools in the hands of data scientists have the potential to unlock firm value and increase revenue and profits, through pattern identification, analysis, and strategic action. This exploratory mode of working can increase complexity and thereby diminish efficient management decision-making and action. However, data pattern visualisation reduces complexity, as it enables interdisciplinary communication between data scientists and managers through the translation of statistical patterns into visualisations that enable actionable management decisions. When data scientists visualise data patterns for managers, this translates uncertainty into reliable conclusions, resulting in effective management decision-making and action. Informed by contingent resource theory and viewing these primary and secondary resources as independent variables and performance outcomes such as revenue and profitability as dependent variables, a conceptual framework is developed. The contingent resource-based theory highlights capabilities emerging from the interrelationship between primary and secondary resources as being central to competitiveness and profitability. Data decision-making systems are viewed as a primary resource, while complementary resources are (1) their completeness of vision (i.e., strategy and innovation) and (2) their ability to execute (i.e., operational capabilities). Data visualisation is therefore crucial as a resource facilitating actionable decisions by management, which in turn enhances firm performance. The balance between expert agents' self-reliance and central control, the entity's values, task attributes, and risk appetite all moderate the type of data visualisation produced by data scientists.
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Graham, Martin, e Jessie Kennedy. "Extending Taxonomic Visualisation to Incorporate Synonymy and Structural Markers". Information Visualization 4, n. 3 (9 giugno 2005): 206–23. http://dx.doi.org/10.1057/palgrave.ivs.9500096.
Testo completoAbstract (sommario):
The visualisation of taxonomic hierarchies has evolved from indented lists of names to techniques that can display thousands of nodes and onto hundreds of thousands of nodes over multiple taxonomies. However, challenges remain within multiple hierarchy visualisation, and for taxonomic hierarchy visualisation in particular. Firstly, at present, there is no support for handling specific taxonomic information such as synonymy, with current visualisations matching solely on names. Synonymy is extremely important as it reflects expert opinion on the compatibility of data held in separate taxonomies, and is needed to produce an accurate picture of taxonomic overlap. Also, current techniques for exploring large hierarchies find it difficult to convey internal re-organisations between hierarchies, with most systems showing only addition, removal or wide-ranging fragmentation of information between taxonomies. Finding the source of changes that have occurred within an existing structure is currently only achievable through exhaustive drill-down exploration. This paper describes work that tackles these problems, incorporating synonymy information into a model for multiple hierarchy visualisation of large taxonomies, and also detailing techniques that aid navigation for discovering structural re-organisations between hierarchies and for revealing information about nodes that lie below the effective display resolution of the hierarchy layout. Two examples on real taxonomic data sets are annotated to show the effectiveness of these techniques in operation.
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Alcíbar, Miguel. "Information visualisation as a resource for popularising the technical-biomedical aspects of the last Ebola virus epidemic: The case of the Spanish reference press". Public Understanding of Science 27, n. 3 (10 aprile 2017): 365–81. http://dx.doi.org/10.1177/0963662517702047.
Testo completoAbstract (sommario):
This study explores the role that information visualisation played in the popularisation of the technical-biomedical aspects of the last Ebola virus epidemic, the most devastating to date. Applying content analysis methods, the total population of information visualisations ( N = 209) was coded and analysed to identify topics, and to define features and identify patterns in the images. The corpus was based on the record of articles with graphics appearing in five Spanish reference newspapers from 22 March 2014 to 13 January 2016, the start and suppression of the epidemic, respectively. The results suggest that information visualisation was a key factor in the popularisation of the epidemic’s technical-biomedical aspects, as well as contributing actively to construct, in the words of Myers, a narrative of nature.
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Markiewicz, Małgorzata. "Image communication and contemporary visualisation in the popularisation of archaeology". Sprawozdania Archeologiczne 74, n. 2 (6 aprile 2023): 7–28. http://dx.doi.org/10.23858/sa/74.2022.2.2831.
Testo completoAbstract (sommario):
In modern society where images begin to play a dominant role in the cognitive process, the use of visualisation as a carrier of information about archaeological research becomes more and more important. The main aim of this article is to consider visualisation as a method of education and protection of cultural heritage, as well as the role of image communication in popularising archaeology. These issues will be subject to a critical discussion in terms of advantages, possibilities and challenges resulting from the use of 3D reconstruction of prehistoric objects in museology, the Internet and popular science publications. In order to understand the idea of image communication in popularising the archaeological heritage better, an example of visualisations comprising a graphic part of museum exhibitions will be presented.
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Herman, Ivan, Maylis Delest e Guy Melancon. "Tree Visualisation and Navigation Clues for Information Visualisation". Computer Graphics Forum 17, n. 2 (giugno 1998): 153–65. http://dx.doi.org/10.1111/1467-8659.00235.
Testo completo
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Allen, William. "Making corpus data visible: visualising text with research intermediaries". Corpora 12, n. 3 (novembre 2017): 459–82. http://dx.doi.org/10.3366/cor.2017.0128.
Testo completoAbstract (sommario):
Researchers using corpora can visualise their data and analyses using a growing number of tools. Visualisations are especially valuable in environments where researchers communicate and work with public-facing partners under the auspices of ‘knowledge exchange’ or ‘impact’, and corpus data are more available thanks to digital methods. However, although the field of corpus linguistics continues to generate its own range of techniques, it largely remains orientated towards finding ways for academics to communicate results directly with other academics rather than with or through groups outside universities. Also, there is a lack of discussion about how communication, motivations and values also feature in the process of making corpus data visible. My argument is that these sociocultural and practical factors also influence visualisation outputs alongside technical aspects. I draw upon two corpus-based projects about press portrayal of migrants, conducted by an intermediary organisation that links university researchers with users outside academia. Analysing these projects' visualisation outputs in their organisational and communication contexts produces key lessons for researchers wanting to visualise text; consider the aims and values of partners; develop communication strategies that acknowledge different areas of expertise; and link visualisation choices with wider project objectives.
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Ruddle, Roy A., Muhammad Adnan e Marlous Hall. "Using set visualisation to find and explain patterns of missing values: a case study with NHS hospital episode statistics data". BMJ Open 12, n. 11 (novembre 2022): e064887. http://dx.doi.org/10.1136/bmjopen-2022-064887.
Testo completoAbstract (sommario):
ObjectivesMissing data is the most common data quality issue in electronic health records (EHRs). Missing data checks implemented in common analytical software are typically limited to counting the number of missing values in individual fields, but researchers and organisations also need to understand multifield missing data patterns to better inform advanced missing data strategies for which counts or numerical summaries are poorly suited. This study shows how set-based visualisation enables multifield missing data patterns to be discovered and investigated.DesignDevelopment and evaluation of interactive set visualisation techniques to find patterns of missing data and generate actionable insights. The visualisations comprised easily interpretable bar charts for sets, heatmaps for set intersections and histograms for distributions of both sets and intersections.Setting and participantsAnonymised admitted patient care health records for National Health Service (NHS) hospitals and independent sector providers in England. The visualisation and data mining software was run over 16 million records and 86 fields in the dataset.ResultsThe dataset contained 960 million missing values. Set visualisation bar charts showed how those values were distributed across the fields, including several fields that, unexpectedly, were not complete. Set intersection heatmaps revealed unexpected gaps in diagnosis, operation and date fields because diagnosis and operation fields were not filled up sequentially and some operations did not have corresponding dates. Information gain ratio and entropy calculations allowed us to identify the origin of each unexpected pattern, in terms of the values of other fields.ConclusionsOur findings show how set visualisation reveals important insights about multifield missing data patterns in large EHR datasets. The study revealed both rare and widespread data quality issues that were previously unknown, and allowed a particular part of a specific hospital to be pinpointed as the origin of rare issues that NHS Digital did not know exist.
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Ertl, Thomas, Michael Krone, Stefan Kesselheim, Katrin Scharnowski, Guido Reina e Christian Holm. "Visual analysis for space–time aggregation of biomolecular simulations". Faraday Discuss. 169 (2014): 167–78. http://dx.doi.org/10.1039/c3fd00156c.
Testo completoAbstract (sommario):
Conducting a current through a nanopore allows for the analysis of molecules inside the pore because a current modulation caused by the electrostatic properties of the passing molecules can be measured. This mechanism shows great potential for DNA sequencing, as the four different nucleotide bases induce different current modulations. We present a visualisation approach to investigate this phenomenon in our simulations of DNA within a nanopore by combining state-of-the-art molecular visualisation with vector field illustration. By spatial and temporal aggregation of the ions transported through the pore, we construct a velocity field which exhibits the induced current modulations caused by ion flux. In our interactive analysis using parametrisable three-dimensional visualisations, we encountered regions where the ion motion unexpectedly opposes the direction of the applied electric field.
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Laing, Richard, Anne-Marie Davies, David Miller, Anna Conniff, Stephen Scott e Jane Morrice. "The Application of Visual Environmental Economics in the Study of Public Preference and Urban Greenspace". Environment and Planning B: Planning and Design 36, n. 2 (1 gennaio 2009): 355–75. http://dx.doi.org/10.1068/b33140.
Testo completoAbstract (sommario):
Urban greenspace has consistently been argued to be of great importance to the wellbeing, health, and daily lives of residents and users. This paper reports results from a study that combined the visualisation of public results from a study that combined the visualisation of public greenspace with environmental economics, and that aimed to develop a method by which realistic computer models of sites could be used within preference studies. As part of a methodology that employed contingent rating to establish the values placed on specific greenspace sites, three-dimensional computer models were used to produce visualisations of particular environmental conditions. Of particular importance to the study was the influence of variables including lighting, season, time of day, and weather on the perception of respondents. This study followed previous work that established a suitable approach to the modelling and testing of entirely moveable physical variables within the built environment. As such, the study has established firmly that computer-generated visualisations are appropriate for use within environmental economic surveys, and that there is potential for a holistic range of attributes to be included in such studies.
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Fabrika, Marek, Peter Valent e Katarína Merganičová. "Forest modelling and visualisation – state of the art and perspectives". Central European Forestry Journal 65, n. 3-4 (1 settembre 2019): 147–65. http://dx.doi.org/10.2478/forj-2019-0018.
Testo completoAbstract (sommario):
Abstract The paper provides a detailed overview on forest models from various perspectives. The presented classification scheme of forest models uses concept, object, space and time as variables to place models in specific categories and thus provides an integrated approach for model categorisation. A short description of individual categories with the examples of models helps to understand their nature. In total 34 forest models were classified according to the created scheme. Forest visualisation has also an important place in forest modelling. Here it is described from the point of different visualisations methods and used technologies. Inputs that are necessary for the models but are often not available and need to be derived using specialised tools – various forms of data generators are presented too. Important perspectives and challenges of further development of forest models and visualisation technologies were specified as well.
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Gastner, Michael T. "Podučavanje vizualizacije podataka i osnovnih vještina izrade karata na Liberal Arts Collegeu". Kartografija i geoinformacije 22, n. 39 (21 luglio 2023): 42–60. http://dx.doi.org/10.32909/kg.22.39.3.
Testo completoAbstract (sommario):
Communicating data has become vital in an increasingly data-dependent society. Because data are often communicated graphically, many colleges and universities are offering courses that teach the principles of data visualisation. In this article, the author reflects on his experience of teaching such a course at a liberal arts college. The course introduced students to the tidyverse suite of packages for the programming language R, including the data visualisation package ggplot2, which implements Wilkinson’s (2005) ‘grammar of graphics’. The packages sf and tmap were used to extend the capabilities of the tidyverse packages for analysing geospatial data and producing thematic maps. This article provides insights into effective teaching strategies, including intended learning outcomes, the core syllabus, pedagogy and assessment. Sample tasks and visualisations are also presented to demonstrate how essential cartographic skills were imparted to students.
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Angelin-Bonnet, Olivia, Matthieu Vignes, Patrick J. Biggs, Samantha Baldwin e Susan Thomson. "Visual Integration of Genome-Wide Association Studies and Differential Expression Results with the Hidecan R Package". Genes 15, n. 10 (25 settembre 2024): 1244. http://dx.doi.org/10.3390/genes15101244.
Testo completoAbstract (sommario):
Background/Objectives: We present hidecan, an R package for generating visualisations that summarise the results of one or more genome-wide association studies (GWAS) and differential expression analyses, as well as manually curated candidate genes, e.g., extracted from the literature. This tool is applicable to all ploidy levels; we notably provide functionalities to facilitate the visualisation of GWAS results obtained for autotetraploid organisms with the GWASpoly package. Results: We illustrate the capabilities of hidecan with examples from two autotetraploid potato datasets. Conclusions: The hidecan package is implemented in R and is publicly available on the CRAN repository and on GitHub. A description of the package, as well as a detailed tutorial, is made available alongside the package. It is also part of the VIEWpoly tool for the visualisation and exploration of results from polyploids computational tools.
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Bohak, Ciril, Matej Slemenik, Jaka Kordež e Matija Marolt. "Aerial LiDAR Data Augmentation for Direct Point-Cloud Visualisation". Sensors 20, n. 7 (8 aprile 2020): 2089. http://dx.doi.org/10.3390/s20072089.
Testo completoAbstract (sommario):
Direct point-cloud visualisation is a common approach for visualising large datasets of aerial terrain LiDAR scans. However, because of the limitations of the acquisition technique, such visualisations often lack the desired visual appeal and quality, mostly because certain types of objects are incomplete or entirely missing (e.g., missing water surfaces, missing building walls and missing parts of the terrain). To improve the quality of direct LiDAR point-cloud rendering, we present a point-cloud processing pipeline that uses data fusion to augment the data with additional points on water surfaces, building walls and terrain through the use of vector maps of water surfaces and building outlines. In the last step of the pipeline, we also add colour information, and calculate point normals for illumination of individual points to make the final visualisation more visually appealing. We evaluate our approach on several parts of the Slovenian LiDAR dataset.
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Haggerty, John, Sheryllynne Haggerty e Mark Taylor. "Forensic triage of email network narratives through visualisation". Information Management & Computer Security 22, n. 4 (7 ottobre 2014): 358–70. http://dx.doi.org/10.1108/imcs-11-2013-0080.
Testo completoAbstract (sommario):
Purpose – The purpose of this paper is to propose a novel approach that automates the visualisation of both quantitative data (the network) and qualitative data (the content) within emails to aid the triage of evidence during a forensics investigation. Email remains a key source of evidence during a digital investigation, and a forensics examiner may be required to triage and analyse large email data sets for evidence. Current practice utilises tools and techniques that require a manual trawl through such data, which is a time-consuming process. Design/methodology/approach – This paper applies the methodology to the Enron email corpus, and in particular one key suspect, to demonstrate the applicability of the approach. Resulting visualisations of network narratives are discussed to show how network narratives may be used to triage large evidence data sets. Findings – Using the network narrative approach enables a forensics examiner to quickly identify relevant evidence within large email data sets. Within the case study presented in this paper, the results identify key witnesses, other actors of interest to the investigation and potential sources of further evidence. Practical implications – The implications are for digital forensics examiners or for security investigations that involve email data. The approach posited in this paper demonstrates the triage and visualisation of email network narratives to aid an investigation and identify potential sources of electronic evidence. Originality/value – There are a number of network visualisation applications in use. However, none of these enable the combined visualisation of quantitative and qualitative data to provide a view of what the actors are discussing and how this shapes the network in email data sets.
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Heinrich, Falk. "(Big) Data, Diagram Aesthetics and the Question concerning Beauty". MedieKultur: Journal of media and communication research 31, n. 59 (8 marzo 2016): 20. http://dx.doi.org/10.7146/mediekultur.v31i59.20084.
Testo completoAbstract (sommario):
<p class="falk1">The article investigates whether and in which way artistic artefacts deploying big data can be experienced as beautiful. The question is relevant, because the sentiment of beauty indicates besides an immediate sensory valuation also changes in cultural values and epistemic frameworks. The article focuses on artistic data visualisations. It applies concepts of philosophical aesthetics in order to trace an altered notion of beauty and its artistic and cultural implications.</p><p class="falk1">The article’s introductory part presents some examples of data visualisations and introduces relevant notions of beauty and big data. The main part discusses the changes in our concept of beauty by analysing data visualisation in the light of conceptual art and its aesthetics of the sublime. Data visualizations present potentially unfathomable and complex information that is associated with the sublime, but represent data in a way that allows for understanding by means of imaginations, which are aspects of beauty. The article elaborates on the simultaneity of and oscillation between aesthetic beauty and the aesthetic sublime, by introducing Deleuze’s understandings of the concept of the diagram that is able to mediate between visualisation as representation and diagrams as performative machine of formation and displacement of data relations.</p>
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Borkowski, Andrzej, e Piotr Nowakowski. "Use of applications and rendering engines in architectural design – state-of-the-art". Budownictwo i Architektura 22, n. 1 (30 marzo 2023): 005–14. http://dx.doi.org/10.35784/bud-arch.3327.
Testo completoAbstract (sommario):
Computer methods in the AEC (Architecture, Engineering, Construction) industry are constantly evolving, mainly towards BIM, and the design process itself within an investment project focuses mainly on documentation. Visualisation or animation are optional elements, mostly done for sales purposes. Photorealism and the quality of created visualisations influence the impressions of the recipient, and the emotions evoked can determine a purchase or investment. As a rule, designers pay great attention to the visualisations they create, but they are not always aware of the solutions available on the market in this respect. In recent decades, rendering engines based on so-called real-time rendering have developed rapidly. The aim of the study was to provide a deep review of existing 3D modelling and visualisation solutions in terms of their popularity, applicability and advantages and limitations. The focus is on applications working with BIM software, which is widely used in the AEC industry. The paper attempts to compare the applications, lists their advantages, disadvantages, benefits and limitations in their use. The conclusions, sometimes subjective, can be useful for the whole community of architects and engineers, related to space design. The results of the review indicate the increasing popularity of 'real-time' solutions, which are displacing 'offline' solutions.