To show events over time, you can use a timeline, which is often marks on a line that runs from less recent to more recent. But you can vary the shape. Sara Di Bartolomeo and her group researched the effectiveness of different layouts:
Considering the findings of our experiment, we formulated some design recommendations for timelines using one of the data set types we took into account. Here is a list of recommendations regarding timeline readability:
- Use linear vertical timelines for situations which require fast data lookup.
- Avoid spiral timelines when the task requires fast lookup.
- If you use a more creative, expressive shape, such as a spiral timeline, also include a tutorial or visual cues to assist the user in learning and understanding.
Also: it “heavily depends on the context.”
Tags: research, timeline
Rewind to 2006 when Hans Rosling’s talk using moving bubbles was at peak attention. Researchers studied whether animation in visualization was a good thing. Danyel Fisher revisits their research a decade later.
While they found that readers didn’t get much more accuracy from the movement versus other method, there was a big but:
But we also found that users really liked the animation view: Study participants described it as “fun”, “exciting”, and even “emotionally touching.” At the same time, though, some participants found it confusing: “the dots flew everywhere.”
This is a dilemma. Do we make users happy, or do we help them be effective? After the novelty effect wears off, will we all wake up with an animation hangover and just want our graphs to stay still so we can read them?
Tags: animation, research
Michael Correll on the use of “visualization literacy” in research:
If people (and, by some definitions, many or even most people) are chart illiterates, then we may feel tempted to write those groups off. We may prioritize the design of visualizations to help the creators of, say, machine learning models, from whom we can presume a sufficient level of visual and statistical literacy, rather than the populations who may be impacted by these models (sometimes unjustly). If what we mean by “visualization literacy” is narrow enough, or rare enough, then we’re already setting ourselves mental upper bounds for the number of people we’ll impact with our work.
This was an interesting perspective. I’m used to listening to or reading from people on the presentation side of visualization, in which case it’s your job to raise literacy. You should imagine what others are thinking and explain any points of possible confusion with annotation and intuitive visual encodings.
Don’t ever use “people won’t understand it” as a crutch.
Tags: literacy, research
Reading visualization research papers can often feel like a slog. As a necessity, there’s usually a lot of jargon, references to William Cleveland and Robert McGill, and sometimes perception studies that lack a bit of rigor. So for practitioners or people generally interested in data communication, worthwhile research falls into a “read later” folder never to be seen again.
Multiple Views, started by visualization researchers Jessica Hullman, Danielle Szafir, Robert Kosara, and Enrico Bertini, aims to explain the findings and the studies to a more general audience. (The UW Interactive Data Lab’s feed comes to mind.) Maybe the “read later” becomes read.
I’m looking forward to learning more. These projects have a tendency to start with a lot of energy and then fizzle out, so I’m hoping we can nudge this a bit to urge them on. Follow along here.
Tags: audience, research
Gordon Research Conference on Craniofacial Morphogenesis and Tissue Regeneration (February 11 – 16, 2018): Licia Selleri & Ophir Klein Posted August 22, 2018 by post-info As part of its mission to encourage engagement
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The XV Collection: Perverse Outcomes of Novel Therapies Posted August 10, 2018 by post-info by Andrew Read Yale professor Steve Stearns once warned that the transition from Young Turk to Old Turkey happens quickly.
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By Dr. Jenniffer Mabuka In 2014, West Africa encountered its worst recorded outbreak of Ebola with over 11,000 reported deaths. The memory of this crisis hadn’t faded yet when Ebola reared its ugly head
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