Datavisualisation & Mining the (Social) Web

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13 Δεκ 2013 (πριν από 3 χρόνια και 9 μήνες)

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Datavisualisation &
Mining the (Social) Web
Wouter Van den Bosch - Lessius Mechelen - Vilnius, 2011
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Monday 4 April 2011
Datavisualisation and
the rise of the Infograph
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The infographic

graphic visual representations of
information
,
data
or
knowledge

made to present
complex
information
quickly

and
clearly
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http://www.visualizing.org/visualizations/obesity-and-hunger-partners
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http://www.informationisbeautiful.net/play/mountains-out-of-molehills/
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A few words on social
networks
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ChatRoule*e.com
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Different people are on
different platforms

based on
age

based on
socio-economical
properties

based on
region

evolves
over time (and often very
fast
)

different people
use certain tools for
different reasons
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@tweep
#hashtag
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Biggest Tweeps
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http://www.visualizing.org/stories/visualizing-twitter
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Getting your Data from
social media
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Getting your Data
Both Facebook and Twitter have a publicly
accessible API usable for ‘limited’ datamining
purposes
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Twitter API

HTTP Based

GET Requests

Response in XML, JSON and RSS

Actually 3 APIs

REST

Streaming

Search

http://dev.twitter.com/doc
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Twitter Search API

Returns Tweets and metadata based on query
parameters

word(s)

tweep

locale

since / until

location

rate limit higher than 150 requests
per hour

1500 results max per request
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Twitter Search API

http://dev.twitter.com/doc/get/search

http://search.twitter.com/search.json?q=vilnius
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Facebook Graph API

Allows you to query any object in Facebook
(Users, pages, events, ...)

HTTP Based

JSON Responses

Response depends on your access to
those objects

Best to stick to public data

http://developers.facebook.com/docs/
reference/api/
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Searching Facebook

All public posts:
https://graph.facebook.com/search?
q=watermelon&type=post

People:
https://graph.facebook.com/search?q=mark&type=user

Pages:
https://graph.facebook.com/search?q=platform&type=page

Events:
https://graph.facebook.com/search?q=conference&type=event

Groups:
https://graph.facebook.com/search?q=programming&type=group

Places:
https://graph.facebook.com/search?
q=coffee&type=place&center=37.76,122.427&distance=1000

Checkins:
https://graph.facebook.com/search?type=checkin
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Searching Facebook

limit, offset:
https://graph.facebook.com/me/
likes?limit=3

until, since (a unix timestamp or any date
accepted by
strtotime
):
https://
graph.facebook.com/search?
until=yesterday&q=orange
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Visualizing your data
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The process

Mining the data

Parsing your data

(Storing your data)

Visualising your data

Automatically

Manually

A combo
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The tools

What’s wrong with Excell?

Node XL for social networking data

20 libraries for visualization at
http://sixrevisions.com/javascript/20-fresh-javascript-data-visualization-libraries/

Flare

Highcharts

InfoVis

Map based visualisations

GeoCommons
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To know more

Follow mindwraps on Twitter

http://www.delicious.com/mindwraps/
vilniusdatamining

http://www.delicious.com/mindwraps/
datavisualisation
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