Data	visualization	in	data
journalism	workflow
Alessio	Cimarelli
	|	datamediahub.it dataninja.it
@jenkin27
"Data	visualizat...
Who_	Datamediahub
The	information	about	the	media	like	you've	never	seen
www.datamediahub.it
DataMediaHub	is	a	hub	of	prof...
Who_	Dataninja
Data	journalism	&	data	visualization	made	in	Italy
www.dataninja.it
Dataninja	is	a	collective.	Founded	in	2...
What_	Data	journalism
Data	or	not,	it	is	always	the	dear	old	journalism,	baby	
There	was	5	exabytes	of	information
created...
Data	journalism	workflow
Four	is	the	magic	number
1.	 Search
2.	 Check	and	cleaning
3.	 Analysis
4.	 Story-telling
Data	vis...
The	nose	eye	for	news
Step	1:	search
	(the	Italian	statistics	institute)
	(data	visualization	engine	created	by	the
govern...
The	nose	eye	for	news
Step	2:	check	and	cleaning
How	to	find	errors	in	type,	sign,	order	of	magnitude,	...?
A	simple	line	...
The	nose	eye	for	news
Step	3:	analysis
Basic	charts	(scatter,	lines,	bars,	...)	to	see	and	not	to	read
Embedded	viz	tools	...
The	nose	eye	for	news
Step	4:	story-telling
When	design	matters
Basic	charts
Multiple	chart	compositions
Maps
Datawrapper
...
Where_	Mapping	data
Four	examples	of	geographic	data	viz
From	datamediahub.it
	
	
From	dataninja.it
	(L'Espresso)	-	 ,
	an...
Follow	the	bit	crumbs...
Alessio	Cimarelli
jenkin@dataninja.it
@jenkin27
Stay	in	touch!
Newsletter	-->	
Q&A	-->	
	|	 	|	
S...
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Data visualization in data journalism workflow

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Talk within the panel “Data visualization: the (beautiful) new frontier” during the International Journalism Festival in Perugia #ijf14 – 01/05/2014

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Transcript of "Data visualization in data journalism workflow"

  1. 1. Data visualization in data journalism workflow Alessio Cimarelli | datamediahub.it dataninja.it @jenkin27 "Data visualization: the (beautiful) new frontier" International Journalism Festival in Perugia 2014 #ijf14 - May Day, 2014
  2. 2. Who_ Datamediahub The information about the media like you've never seen www.datamediahub.it 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.
  3. 3. Who_ Dataninja Data journalism & data visualization made in Italy www.dataninja.it 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.
  4. 4. 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.
  5. 5. Data journalism workflow Four is the magic number 1. Search 2. Check and cleaning 3. Analysis 4. Story-telling Data visualization can be an useful tool in all of these steps.
  6. 6. The nose eye for news Step 1: search (the Italian statistics institute) (data visualization engine created by the government of Minas Gerais, Brazil) ISTAT Interactive contents and visualizations I.Stat DataViva Exports of Minas Gerais in 2012 Industrial Activity in Central by Municipality in 2012
  7. 7. 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
  8. 8. 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 off-line and on-line Viz tools in statistical or dedicated software Fast prototyping tools Libre Office Google Drive QtiPlot QGIS RAW
  9. 9. The nose eye for news Step 4: story-telling When design matters Basic charts Multiple chart compositions Maps Datawrapper Infogr.am CartoDB Google Fusion Tables
  10. 10. Where_ Mapping data Four examples of geographic data viz From datamediahub.it From dataninja.it (L'Espresso) - , and the on datajournalism.it (Il Secolo XIX) La Diffusione dei Quotidiani: Mappa Interattiva Società dell’Informazione: il Ritmo di Crescita delle Regioni in 10 anni | Mappa interattiva Migranti, la guerra del Mediterraneo Data blog early map Genova, la mappa dell'azzardo
  11. 11. Follow the bit crumbs... Alessio Cimarelli jenkin@dataninja.it @jenkin27 Stay in touch! Newsletter --> Q&A --> | | Slides --> And tomorrow... "Hackathon: maratona tra codice, notizie e dati" At 9:30 in the Hotel La Rosetta | http://newsletter.dataninja.it/ http://dataninja.it/qa/ @DataMediaHub [fb]/Datamediahub #dataninja http://slid.es/dataninja/ #hackijf14
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