Visual and Spatial Factors in a Bayesian Reasoning Framework for the Recognition of Intended Messages in Grouped Bar Charts
نویسندگان
چکیده
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 bar charts and an ACT-R model for computationalizing one important communicative signal, the relative effort involved in performing the perceptual tasks necessary for the recognition. It also describes our Bayesian network and its implementation on a subset of the kinds of messages that can be conveyed by
منابع مشابه
Analyzing the Effect of Communicative Evidence in a Bayesian System for Grouped Bar Chart Message Recognition
Information graphics, such as bar charts and line graphs, generally have a communicative message that they are intended to convey when they appear in popular media. The communicative signals present or absent in the graphic help convey these underlying intended messages. We have designed a Bayesian system that automatically extracts communicative signals from a grouped bar chart information gra...
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 کاملThe Role of Cognitive Modeling in an Automated System for Understanding Bar Charts
Information graphics (such as line graphs, bar charts, and pie charts) are an inherently visual medium which relies on a viewer’s spatial reasoning abilities to facilitate the comprehension of complex data. Our research group has developed an automated system for understanding the intended message of simple bar charts, and we are currently working to expand this system to handle more complex ty...
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 کاملModeling 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 کامل