Data Visualization on the Tech Side

DATA VISUALIZATION
ON THE
TECH SIDE
#dbtalks
languages - tools - ideas

Mathieu ELIE
Data Visualization Freelance
@mathieuel
http://www.mathieu-elie.net
#dbtalks

DATA VISUALIZATION
#dbtalks
Inﬁnite number of tools, because
dataviz domain is inﬁnite.
From data art, system
administration, led walls to
business intelligence.
Lets see some trending tools, and
explore some ideas !

CHAPTERS
#dbtalks
- d3.js the web standard, not so alone
- ELK stack, system and BI dataviz super fast
- WebGL, 3d dataviz entry point
- R, explore data like a data scientist boss !
- 3d printing, dataviz in real life
- processing - meet the data art
- open reﬁne, import csv, enrich, export

D3.JS
#dbtalkshttp://d3js.org/

D3.JS
#dbtalks
THINK D3 AS:
- a javascript library with helpers
- dom, array, scales, color swatches etc...
- a dom manipulation library
- a low level lib: make a bart chart maybe
painfull at the beginning
- but you can make really advanced
visualization, with full control

D3.JS
#dbtalks
As you can see, every examples are made of
graphic svg primitives like square, path
and so on.
Possibilities are inﬁnite and can be stuning
but quite lot of work.

D3.JS
#dbtalks
d3 is a great tools for dataviz experts, or
those who want to lear basics.
For your own need you can use more high
level tools like d3 wrapper lib, or lib focused
on speciﬁc viz (bar chart, map etc..).

WEBGL
#dbtalks
Low level 3d API in browser (HTML5).
three.js : the perfect lib to go on.
Not really the job of d3.

WEBGL
#dbtalks
Many possibilities.
3d and data works together too.
so dont miss WebGL for your dataviz
projects

ELK STACK
#dbtalks
- logstash -> elasticsearch -> kibana
- extra cheap dataviz and stuning
- but ! you can query es too -> d3.js
- elasticsearch + aggregations framework
ajax call -> amazing stats to d3.js !
- explore timeline data quickly: very
handy

R
#dbtalks
ouch ! ready to console ??

R
#dbtalks
- explore large sets of data
- load csv and so on
- explore data, aggregate, apply stats, ﬁnd
max, min, percentiles, and so on..
- produce graphs
- R is not for producing dataviz
- it is the perfect tool to explore your data

OPEN REFINE
#dbtalks
- when you have large / inconsistent csv
- explore, correct, enrich
- export templates: json / es / php,
anything text based !!!

OPEN REFINE
#dbtalks
- ok for non programmers
- not similar to R: has its own advantage
- open source / free : run in browser
- export templates are really amazing ,
endless possibilities
- any time you have csv, think «open reﬁne»

PROCESSING
#dbtalks
- not a dataviz standard tool but...
- great community including data art
- so i think you should care....
- .... and open your mind !

PROCESSING
#dbtalks
- community give more insights on the
visual part of your dataviz
- imagine some part of this graph are
drived by data:
- length of some path ?
- brightness of some points ?
- add maybe 3d or geo located data ?

3D PRINTING
#dbtalks
so ? why not 3d print data ?
- print bars / histogram 3d
- print curves: think about lines chart in
3d
- and many possibilities...

3D PRINTING EXAMPLE
#dbtalksObama 3d voice print

USE CASE : LASTFM HISTORY
#dbtalks

USE CASE : LASTFM HISTORY
#dbtalks
1 ) grab lastfm api data from ruby
2 ) store in csv
3 ) import in open reﬁne
4 ) export to elasticseach
5 ) call elasticsearch with ajax
6 ) display data with d3.js

#dbtalks
QUESTIONS ?
HELP ?
Mathieu ELIE
Data Visualization Freelance
@mathieuel

Data Visualization on the Tech Side

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