Modeling Relative Task Effort for Grouped Bar Charts
نویسندگان
چکیده
The overall goal of our research is a system which can recognize the intended message of a grouped bar chart by reasoning about the communicative signals contained in the graphic. One such communicative signal is the relative effort required to perform different perceptual tasks on the graphic. This paper presents our methodology for estimating relative task effort. Based on graph comprehension research and our motivational eye tracking experiments, we hypothesize a set of factors that should be taken into account in a model of task effort. We present our model, implemented in the ACT-R framework, and discuss the results of a final set of eye tracking experiments that validate our model as a predictor of relative task effort.
منابع مشابه
Modeling a Graph Viewer's Effort in Recognizing Messages Conveyed by Grouped Bar Charts
Information graphics (bar charts, line graphs, etc.) in popular media generally have a high-level message that they are intended to convey. These messages are seldom repeated in the document’s text yet contribute to understanding the overall document. The relative perceptual effort required to recognize a particular message is a communicative signal that serves as a clue about whether that mess...
متن کاملVisual and Spatial Factors in a Bayesian Reasoning Framework for the Recognition of Intended Messages in Grouped Bar Charts
The overall goal of our research is the automatic recognition of the intended message of a grouped bar chart. This paper presents our preliminary work on a system that utilizes the communicative signals in a grouped bar chart as evidence in a Bayesian network that hypothesizes the primary message conveyed by the graphic. The paper discusses the kinds of communicative signals present in grouped ...
متن کاملEstimating Effort for Trend Messages in Grouped Bar Charts
Information graphics found in popular media contain communicative signals which help the viewer infer the graphic designer’s intended message. One signal is the relative effort required for different recognition tasks. This paper presents a model of the effort required to recognize a trend in a grouped bar chart. The model is developed using the ACT-R cognitive framework and validated via eye t...
متن کاملWhat’s the Difference?: Evaluating Variants of Multi-Series Bar Charts for Visual Comparison Tasks
An increasingly common approach to data analysis involves using information dashboards to visually compare changing data. However, layout constraints coupled with varying levels of visualization literacy among dashboard users make facilitating visual comparison in dashboards a challenging task. In this paper, we evaluate variants of bar charts, one of the most prevalent class of charts used in ...
متن کاملAutomatically Recognizing Intended Messages in Grouped Bar Charts
Information graphics (bar charts, line graphs, grouped bar charts, etc.) often appear in popular media such as newspapers and magazines. In most cases, the information graphic is intended to convey a high-level message; this message plays a role in understanding the document but is seldom repeated in the document’s text. This paper presents our methodology for recognizing the intended message o...
متن کامل