Stable Word-Clouds for Visualising Text-Changes Over Time

Word-clouds are a useful tool for providing overviews over texts, visualising relevant words. Multiple word-clouds can also be used to visualise changes over time in a text. This requires that the words in the individual word-clouds have stable positions, as otherwise it is very difficult so see what changed between two consecutive word-clouds. Existing approaches have used coordinated positioning algorithms, which do not allow for their use in an online, dynamic context. In this paper we present a fast word-cloud algorithm that uses word orthogonality to determine which words can share the same space in the word-clouds combined with a simple, but fast spiral-based layout algorithm. The evaluation shows that the algorithm achieves its goal of creating series of word-clouds fast enough to enable use in an online, dynamic context

Towards Interactive Multidimensional Visualisations for Corpus Linguistics

We propose the novel application of dynamic and interactive visualisation techniques to support the iterative and exploratory investigations typical of the corpus linguistics methodology. Very large scale text analysis is already carried out in corpus-based language analysis by employing methods such as frequency profiling, keywords, concordancing, collocations and n-grams. However, at present only basic visualisation methods are utilised. In this paper, we describe case studies of multiple types of key word clouds, explorer tools for collocation networks, and compare network and language distance visualisations for online social networks. These are shown to fit better with the iterative data-driven corpus methodology, and permit some level of scalability to cope with ever increasing corpus size and complexity. In addition, they will allow corpus linguistic methods to be used more widely in the digital humanities and social sciences since the learning curve with visualisations is shallower for non-expert

Considerations on the software and hardware requirements for the implementation of take-home maglev control labs

openAbstract: This study focuses on the development of a didactic Maglev System designed to facilitate controlled laboratory experiments. The system aims to be user-friendly, reliable, and cost-effective. Our main objective was to identify both hardware and software criticalities associated with its implementation. Various tests were conducted to assess the system's robustness during disassembly and reassembly operations and the reliability of individual components. Additionally, we evaluated the implementability of the controllers employed within the system. The results of our investigations revealed the need for improvements in certain hardware components and the associated libraries. These findings have proven instrumental in enhancing the performance of the Maglev System. In conclusion, this thesis significantly contributes to supporting future development teams working on this project. The insights gained from this study will serve as a solid foundation for refining the system's components and libraries, ultimately ensuring increased reliability and user-friendliness of the Maglev System.Abstract: This study focuses on the development of a didactic Maglev System designed to facilitate controlled laboratory experiments. The system aims to be user-friendly, reliable, and cost-effective. Our main objective was to identify both hardware and software criticalities associated with its implementation. Various tests were conducted to assess the system's robustness during disassembly and reassembly operations and the reliability of individual components. Additionally, we evaluated the implementability of the controllers employed within the system. The results of our investigations revealed the need for improvements in certain hardware components and the associated libraries. These findings have proven instrumental in enhancing the performance of the Maglev System. In conclusion, this thesis significantly contributes to supporting future development teams working on this project. The insights gained from this study will serve as a solid foundation for refining the system's components and libraries, ultimately ensuring increased reliability and user-friendliness of the Maglev System

From Keyword Search to Exploration: How Result Visualization Aids Discovery on the Web

A key to the Web's success is the power of search. The elegant way in which search results are returned is usually remarkably effective. However, for exploratory search in which users need to learn, discover, and understand novel or complex topics, there is substantial room for improvement. Human computer interaction researchers and web browser designers have developed novel strategies to improve Web search by enabling users to conveniently visualize, manipulate, and organize their Web search results. This monograph offers fresh ways to think about search-related cognitive processes and describes innovative design approaches to browsers and related tools. For instance, while key word search presents users with results for specific information (e.g., what is the capitol of Peru), other methods may let users see and explore the contexts of their requests for information (related or previous work, conflicting information), or the properties that associate groups of information assets (group legal decisions by lead attorney). We also consider the both traditional and novel ways in which these strategies have been evaluated. From our review of cognitive processes, browser design, and evaluations, we reflect on the future opportunities and new paradigms for exploring and interacting with Web search results

Comprehension and the silent reader

Dr Elspeth Jajdelska's work on the rise of silent reading in the 18th century has shown that writers who assume a silent reader, as almost all writers do in the present day, construct their texts differently from those who write for readers to speak the text aloud to themselves or an audience, as almost all writers did before the 18th century.Elspeth Jajdelska's work explains in detail exactly which kinds of textual features are likely to be difficult for people (both now and in the past) who have learned the mechanics of reading but find it hard to follow texts written for silent readers. These findings arose in an academic field unconnected to educational studies and this knowledge exchange project was established to explore how the research can be made useful to teachers. The project was funded by the Arts and Humanities Research Council

Financial phantasmagoria: corporate image-work in times of crisis

Our purpose in this article is to relate the real movements in the economy during 2008 to the ?image-work? of financial institutions. Over the period January?December 2008 we collected 241 separate advertisements from 61 financial institutions published in the Financial Times. Reading across the ensemble of advertisements for themes and evocative images provides an impression of the financial imaginaries created by these organizations as the global financial crisis unfolded. In using the term ?phantasmagoria? we move beyond its colloquial sense of a set of strange images designed to dazzle towards the more technical connotation used by Ranci�re (2004) who suggested that words and images can offer a trace of an overall determining set-up if they are torn from their obviousness so they become phantasmagoric figures. The key phantasmagoric figure we identify here is that of the financial institution as timeless, immortal and unchanging; a coherent and autonomous entity amongst other actors. This notion of uniqueness belies the commonality of thinking which precipitated the global financial crisis as well as the limited capacity for control of financial institutions in relation to market events. It also functions as a powerful naturalizing force, making it hard to question certain aspects of the recent period of ?capitalism in crisis?

Personality trait analysis during the COVID-19 pandemic: a comparative study on social media

The COVID-19 pandemic, a global contagion of coronavirus infection caused by Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), has triggered severe social and economic disruption around the world and provoked changes in people’s behavior. Given the extreme societal impact of COVID-19, it becomes crucial to understand the emotional response of the people and the impact of COVID-19 on personality traits and psychological dimensions. In this study, we contribute to this goal by thoroughly analyzing the evolution of personality and psychological aspects in a large-scale collection of tweets extracted during the COVID-19 pandemic. The objectives of this research are: i) to provide evidence that helps to understand the estimated impact of the pandemic on people’s temperament, ii) to find associations and trends between specific events (e.g., stages of harsh confinement) and people’s reactions, and iii) to study the evolution of multiple personality aspects, such as the degree of introversion or the level of neuroticism. We also examine the development of emotions, as a natural complement to the automatic analysis of the personality dimensions. To achieve our goals, we have created two large collections of tweets (geotagged in the United States and Spain, respectively), collected during the pandemic. Our work reveals interesting trends in personality dimensions, emotions, and events. For example, during the pandemic period, we found increasing traces of introversion and neuroticism. Another interesting insight from our study is that the most frequent signs of personality disorders are those related to depression, schizophrenia, and narcissism. We also found some peaks of negative/positive emotions related to specific eventsOpen Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. The authors thank the support obtained from: i) project PLEC2021-007662 (MCIN/AEI/10.13039/501100011033, Ministerio de Ciencia e Innovación, Agencia Estatal de Investigación, Plan de Recuperación, Transformación y Resiliencia, Unión Europea-Next GenerationEU), ii) project PID2022-137061OB-C22 (Ministerio de Ciencia e Innovación, Agencia Estatal de Investigación, Proyectos de Generación de Conocimiento; suppported by the European Regional Development Fund) and iii) Consellería de Educación, Universidade e Formación Profesional (accreditation 2019-2022 ED431G-2019/04, ED431C 2022/19) and the European Regional Development Fund, which acknowledges the CiTIUS-Research Center in Intelligent Technologies of the University of Santiago de Compostela as a Research Center of the Galician University SystemS

Visualising Plastic Ocean Pollution: Designing Waste Ontologies

It is challenging to comprehend the extent of oceanic plastic pollution because of the sea depth and currents. This PhD by practice in design uses marine scientific findings and data on plastic waste recycling extrapolation to support an argument that the oceans are the world's largest mismanaged landfill. As the sea's landfill is not visible, the research applied various approaches to making invisible plastic waste present. Through Higher Education (HE) action-based workshops, research participants were invited to experience ocean plastics in ways designed to challenge perceptions. The HE action-based research co-created an aesthetically positive waste response and new experiential values that re-shaped the thinking of participants. Through a co-design approach with design students, research created meaningful connections with long-lasting plastic resources and re-imagined plastic pollution as oceanic species. This PhD thesis research comprises a series of three practice-based projects. First, HE-based waste symposium engagements facilitate landfill dialogue and promote plastic reuse. Second, HE participatory workshops enabled the visualisation of oceanic plastic pollution through making installations. Third, the research explored plastic pollution using craft expositions and participated in a sailing expedition. The PhD interventions promoted positive change through hands-on reuse tactics with plastic packaging, raising environmental and oceanic landfill awareness, and acknowledging that this may not lead to changes in stakeholders' behaviour. Through the design agency-praxis, the research draws on recent works in speculative design formulating experiential design futures and design fictions. These PhD thesis contributions funnelled visual strategy insights from three practice-based interventions into two experiential scenarios - future-based climate fiction narratives. The first future scenario unpacked the responses of HE design workshop stakeholders and proposed informal global services and design-led packaging solutions. The second fiction scenario is a visionary post-anthropocentric future that visually re-imagined the planetary plastic pollution changes through intersections of research and praxis. This participatory research re-imagining with plastic waste and visualising the complexity of plastic pollution contributes further to knowledge relating to design research in three clustered domains. First, various HE learning tools for oceanic environmental awareness and waste reuse were developed. Second, the research designed an innovative methodology that expands praxis vocabulary and forms a new eco-centric compendium through workshop interventions and waste aesthetic approaches. Lastly, through practice-based participatory action and speculative agency, the research uniquely constructs a socio-material narrative with plastic things making new interdisciplinary connections and design relations to nature. The PhD promoted hands-on plastic reuse and new perceptions of plastic waste in HE design education, connecting to discard study, marine science and feminist thinking. A co-creation design approach raised transformative environmental awareness and promoted novel waste aesthetic and design language towards engaged relationships with plastic pollution