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Progressive Learning of Topic Modeling Parameters: A Visual Analytics Framework
(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, ...
Perceptual Biases in Font Size as a Data Encoding
(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 ...
Saliency Deficit and Motion Outlier Detection in Animated Scatterplots
(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 ...
Personalized Views for Immersive Analytics
(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 ...
Using Visual Analytics of Heart Rate Variation to Aid in Diagnostics
(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 ...
Abbreviating Text Labels on Demand
(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
(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
(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
(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 ...
Exploring Entities in Text with Descriptive Non-photorealistic Rendering
(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 ...