Saturday, June 08, 2013

Spotted: Contextifier - automatic generation of annotated stock visualizations

A tool for annotating stock graphs, creating visual narrative. 

// published on Conference on Human Factors in Computing Systems-Latest Proceeding Volume // visit site

Contextifier: automatic generation of annotated stock visualizations
Jessica Hullman, Nicholas Diakopoulos, Eytan Adar

Online news tools - for aggregation, summarization and automatic generation - are an area of fruitful development as reading news online becomes increasingly commonplace. While textual tools have dominated these developments, annotated information visualizations are a promising way to complement articles based on their ability to add context. But the manual effort required for professional designers to create thoughtful annotations for contextualizing news visualizations is difficult to scale. We describe the design of Contextifier, a novel system that automatically produces custom, annotated visualizations of stock behavior given a news article about a company. Contextifier's algorithms for choosing annotations is informed by a study of professionally created visualizations and takes into account visual salience, contextual relevance, and a detection of key events in the company's history.

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