• Publications
  • Influence
iPCA: An Interactive System for PCA‐based Visual Analytics
TLDR
This work has developed a system that visualizes the results of principal component analysis using multiple coordinated views and a rich set of user interactions to support analysis of multivariate datasets through extensive interaction with the PCA output. Expand
How locus of control influences compatibility with visualization style
TLDR
A personality trait known as “locus of control,” which represents a person's tendency to see themselves as controlled by or in control of external events is focused on, to isolate variables of the visualization design and demonstrate that there is indeed a correlation between the two. Expand
Defining Insight for Visual Analytics
TLDR
The idea that visualization should lead to insight seems logical, but researchers in the community have been slow to build on the concept because insight is difficult to define. Expand
WireVis: Visualization of Categorical, Time-Varying Data From Financial Transactions
TLDR
This paper presents a set of coordinated visualizations based on identifying specific keywords within the wire transactions which demonstrate relationships among keywords and accounts over time and introduces a search-by-example technique which extracts accounts that show similar transaction patterns. Expand
The Shaping of Information by Visual Metaphors
TLDR
The results suggest that the visual metaphor indeed affects how a user derives information from a visualization, and that the degree to which a user is affected by the metaphor is strongly correlated with the user's ability to answer task questions correctly. Expand
Improving Bayesian Reasoning: The Effects of Phrasing, Visualization, and Spatial Ability
TLDR
This work shows that problem representation can significantly affect accuracies and provides explanations for the inconsistent reports on accuracy in Bayesian reasoning tasks and shows a significant improvement over existing methods on risk communication in health-related fields. Expand
A Case Study Using Visualization Interaction Logs and Insight Metrics to Understand How Analysts Arrive at Insights
TLDR
An analysis method using interaction logs that identified which interaction patterns led to insights, going beyond insight-based evaluations that only quantify insight characteristics is demonstrated. Expand
Preconceptions and Individual Differences in Understanding Visual Metaphors
TLDR
The results show that metaphor compatibility has a significant effect on accuracy, but that factors such as spatial ability and personality can lessen this effect, and a complex influence of self‐reported metaphor preference on performance. Expand
Legible Simplification of Textured Urban Models
TLDR
This work developed a mesh-simplification algorithm that incorporates concepts from architecture and city planning, which relies on the concept of urban legibility, which segments a city into paths, edges, districts, nodes, and landmarks. Expand
Understanding Principal Component Analysis Using a Visual Analytics Tool
Principle Component Analysis (PCA) is a mathematical procedure widely used in exploratory data analysis, signal processing, etc. However, it is often considered a black box operation whose resultsExpand
...
1
2
3
4
5
...