Now showing items 1-20 of 25

    • Webcasting Made Interactive: Persistent Chat for Text Dialogue During and About Learning Events 

      Ronald, Baecker; Fono, David; Blume, Lillian; Collins, Christopher; Couto, Delia (Springer, 2007)
      This paper presents a “persistent chat” extension to the ePresence Interactive Media webcasting infrastructure to support real-time commenting on and discussing of issues that arise during a learning event, followed by ...
    • A "Communication Skills for Computer Scientists" Course 

      Blume, Lil; Baecker, Ronald; Collins, Christopher; Donohue, Aran (ACM, 2009-07)
      This paper describes "Communication Skills for Computer Scientists," a novel undergraduate course at the University of Toronto. We describe in detail the three major instructional streams of the course: writing, speaking, ...
    • Exploring Entities in Text with Descriptive Non-photorealistic Rendering 

      Chang, Meng-Wei; Collins, Christopher (IEEE, 2013-03)
      We present a novel approach to text visualization called descriptive non-photorealistic rendering which exploits the inherent spatial and abstract dimensions in text documents to integrate 3D non-photorealistic rendering ...
    • Critical InfoVis: Exploring the Politics of Visualization 

      Dörk, Marian; Feng, Patrick; Collins, Christopher; Carpendale, Sheelagh (ACM, 2013-04-27)
      As information visualization is increasingly used to raise awareness about social issues, difficult questions arise about the power of visualization. So far the research community has not given sufficient thought to how ...
    • TandemTable: Supporting Conversations and Language Learning Using a Multi-Touch Digital Table 

      Paluka, Erik; Collins, Christopher (Association for Computing Machinery, 2015-06-03)
      We present TandemTable, a multi-touch tabletop system designed to break down communication barriers between partners, with a special focus on supporting those who are learning languages. The design was guided by a grounding ...
    • Using Visual Analytics of Heart Rate Variation to Aid in Diagnostics 

      McIntyre, Stephen; Eklund, J. Mikael; Collins, Christopher (CEUR Workshop Proceedings, 2016-06-07)
      We present an interactive visualization tool for exploring RR interval data (the time between consecutive heart beats) to support diagnostics. An RR interval sequence diagram allows us to reduce hours of data into a general ...
    • Multi-readout logic gate for selective metal ions detection in parts per billion levels 

      Zenkina, O. V.; Laschuk, N. O.; Ebralidze, I. I.; Spasyuk, D. (John Wiley & Sons, Ltd., 2016-07-18)
      Optical sensors utilizing visual responses for the identification of metal ions require reliable molecular systems able to operate selectively in multicomponent solutions. Herein, we report a water-soluble terpyridyl-based ...
    • Rational design of a material for rapid colorimetric Fe2+ detection 

      Zenkina, O.V; Laschuk, N. O.; Ebralidze, I. I.; Quaranta, S.; Kerr, S.; Egan, J. G.; Gillis, S.; Gaspari, F.; Latini, A. (Elsevier, 2016-10-05)
      We report on the rational design of a novel TiO2 based screen-printed material suitable for sensitive and selective detection of iron ions in water. This includes the synthesis and characterization of large mesoporous TiO2 ...
    • Personalized Views for Immersive Analytics 

      Bonada, Santiago; Veras, Rafael; Collins, Christopher (ACM, 2016-11)
      In this paper we present work-in-progress toward a vision of personalized views of visual analytics interfaces in the context of collaborative analytics in immersive spaces. In particular, we are interested in the sense ...
    • Perceptual Biases in Font Size as a Data Encoding 

      Alexander, Eric; Chang, Chih-Ching; Shimabukuro, Mariana; Franconeri, Steven; Collins, Christopher; Gleicher, Michael (IEEE, 2017-07-04)
      Many visualizations, including word clouds, cartographic labels, and word trees, encode data within the sizes of fonts. While font size can be an intuitive dimension for the viewer, using it as an encoding can introduce ...
    • Progressive Learning of Topic Modeling Parameters: A Visual Analytics Framework 

      El-Assady, Mennatallah; Sevastjanova, Rita; Sperrle, Fabian; Keim, Daniel; Collins, Christopher (IEEE, 2017-08-29)
      Topic modeling algorithms are widely used to analyze the thematic composition of text corpora but remain difficult to interpret and adjust. Addressing these limitations, we present a modular visual analytics framework, ...
    • Abbreviating Text Labels on Demand 

      Shimabukuro, Mariana; Collins, Christopher (IEEE, 2017-10)
      Long text labels is a known challenge in information visualizations.There are some techniques used in order to solve this problem like setting a very small font size. On the other hand, sometimes the font size is so small ...
    • Visual Analytics for Topic Model Optimization based on User-Steerable Speculative Execution 

      El-Assady, Mennatallah; Sperrle, Fabian; Deussen, Oliver; Keim, Daniel; Collins, Christopher (IEEE, 2018-09-18)
      To effectively assess the potential consequences of human interventions in model-driven analytics systems, we establish the concept of speculative execution as a visual analytics paradigm for creating user-steerable preview ...
    • Visualization and the Digital Humanities: Moving Toward Stronger Collaborations 

      Bradley, Adam James; El-Assady, Mennatallah; Coles, Katharine; Alexander, Eric; Chen, Min; Collins, Christopher; Jänicke, Stefan; Joseph, David (IEEE, 2018-12-01)
      For the past two years, researchers from the visualization community and the digital humanities have come together at the IEEE VIS conference to discuss how both disciplines can work together to push research goals in their ...
    • Textension: Digitally Augmenting Document Spaces in Analog Texts 

      Bradley, Adam James; Sawal, Victor; Carpendale, Sheelagh; Collins, Christopher (DHQ, 2019)
      In this paper, we present a system that automatically adds visualizations and natural language processing applications to analog texts, using any web-based device with a camera. After taking a picture of a particular page ...
    • Saliency Deficit and Motion Outlier Detection in Animated Scatterplots 

      Veras, Rafael; Collins, Christopher (Association for Computing Machinery, 2019-05-04)
      We report the results of a crowdsourced experiment that measured the accuracy of motion outlier detection in multivariate, animated scatterplots. The targets were outliers either in speed or direction of motion, and were ...
    • Design by Immersion: A Transdisciplinary Approach to Problem-Driven Visualizations 

      Hall, Kyle Wm.; Bradley, Adam J.; Hinrichs, Uta; Huron, Samuel; Wood, Jo; Collins, Christopher; Carpendale, Sheelagh (IEEE, 2019-08-26)
      While previous work exists on how to conduct and disseminate insights from problem-driven visualization projects and design studies, the literature does not address how to accomplish these goals in transdisciplinary teams ...
    • Lexichrome: Text Construction and Lexical Discovery with Word-Color Associations Using Interactive Visualization 

      Kim, Chris K; Collins, Christopher; Hinrichs, Uta; Mohammad, Saif M (ACM, 2020-07-03)
      Based on word-color associations from a comprehensive, crowdsourced lexicon, we present Lexichrome: a web application that explores the popular perception of relationships between English words and eleven basic color terms ...
    • Tied In Knots: A Case Study on Anthropographic Data Visualization About Sexual Harassment in the Academy 

      Elli, Tommaso; Bradley, Adam; Collins, Christopher; Hinrichs, Uta; Hills, Zachary; Kelsky, Karen (IEEE, 2020-10-30)
      With this pictorial we present the design process of “The Academia is Tied in Knots”, an interactive visualization based on sensitive and qualitative data, namely personal stories reported by people who have experienced ...
    • A Vision-Based System For Non-Intrusive Posture Correction Notifications 

      Beals, Nathan D (2021-05-20)
      Sedentary lifestyle and the prolonged sitting associated with it may have negative health consequences and poor sitting posture only exacerbates that. In this thesis I propose a software application for monitoring a computer ...