Dataninja srls
Connecting data with people
Data visualization in data journalism workflow
Alessio Cimarelli
"Data visualization: the (beautiful) new frontier"
International Journalism Festival in Perugia 2014
#ijf14 - May Day, 2014
Who_ Datamediahub
The information about the media like you've never seen
DataMediaHub is a hub of professionals interested in the Italian media and journalism created to aggregate data on this subject and present it graphically and in an interactive in order to give a visual impact and to help the understanding of the phenomena recounted.
Who_ Dataninja
Data journalism & data visualization made in Italy
Dataninja is a collective. Founded in 2012 by Andrea Nelson Mauro (journalist) and Alessio Cimarelli (data scientist), it's a network of data journalists with the goal of telling stories from data analysis and visualization.
What_ Data journalism
Data or not, it is always the dear old journalism, baby
There was 5 exabytes of information created between the dawn of civilization through 2003, but that much information is now created every 2 days, and the pace is increasing
Google CEO Eric Schmidt, 2010
If journalism want to continue to tell the world and now a large part of the world is made up of digital data, journalists simply can't avoid having to deal with data.
Data journalism workflow
Four is the magic number
- Search
- Check and cleaning
- Analysis
- Story-telling
Data visualization can be an useful tool in all of these steps.
The nose eye for news
Step 1: search
The nose eye for news
Step 2: check and cleaning
- How to find errors in type, sign, order of magnitude, ...?
- A simple line chart for trends
- A simple scatter plot for ordered values
- A distribution (bar chart) of a set of numbers
- How to find outliers or missing?
- Not absolute values, but distances from the mean
- Setting a threshold
- Even a distribution
The nose eye for news
Step 3: analysis
- Basic charts (scatter, lines, bars, ...) to see and not to read
- Embedded viz tools in spreadsheet software
- Libre Office off-line and Google Drive on-line
- Viz tools in statistical or dedicated software
- Fast prototyping tools
The nose eye for news
Step 4: story-telling
When design matters
- Basic charts
- Multiple chart compositions
- Maps
Where_ Mapping data
Four examples of geographic data viz
From datamediahub.it
-
La Diffusione dei Quotidiani: Mappa Interattiva
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Società dell’Informazione: il Ritmo di Crescita delle Regioni in 10 anni | Mappa interattiva
From dataninja.it
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Migranti, la guerra del Mediterraneo (L'Espresso) - Data, blog and the early map on datajournalism.it
-
Genova, la mappa dell'azzardo (Il Secolo XIX)
Follow the bit crumbs...
Alessio Cimarelli
jenkin@dataninja.it
Stay in touch!
- Newsletter --> http://newsletter.dataninja.it/
- Q&A --> http://dataninja.it/qa/
- @DataMediaHub | [fb]/Datamediahub | #dataninja
- Slides --> http://slid.es/dataninja/
And tomorrow...
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"Hackathon: maratona tra codice, notizie e dati"
At 9:30 in the Hotel La Rosetta | #hackijf14
Data visualization in data journalism workflow
By Dataninja srls
Data visualization in data journalism workflow
Talk within the panel "Data visualization: the (beautiful) new frontier" during the International Journalism Festival in Perugia #ijf14 - 01/05/2014
