plataformas de redes sociais: extração e análise de dados

PLATAFORMAS DE REDES SOCIAIS: Extração e Análise de Dados.

Janna Joceli C. de Omena PhDcandidateatUTAus1nIPortugal(FCSH)

@jannajoceli/thesocialplaAorms.wordpress.com

Omena, 2016. Plataformas de Redes Sociais: Extração e Análise de Dados.

Conceito


Social Network Sites Social Media Platforms

n  Web Service » n  Users Create a Profile »

Connections in the Network [Body and Ellison, 2008]

n  Web Service » n  Users and Third parties

» Connect and Build New Services [Helmond, 2015]

q  Programmability = APIs allow applications to talk to one another; APIs are machine-readable interfaces [Berlind, 2015]

API Ecosystem [Dataretrievedfromprogrammableweb.com–morethan14.590APIsregisteredinFebruary2016.Datavisualiza1onbyJannaJoceli–tools:TextRipper,Excel,Raw]

q Programmability

q Popularity

q Connectivity q Datification [Van Dijck and Poell, 2013]

Lógica das Redes Sociais


Linguagem da Web


Info-Web (1.0, 2.0)

Social Web [TimO´Reilly] fromtheopenwebtotheclosedweborwalledgardensofpla3orms

[O´Reilly,2005;DekkerandWolfsberger,2009]

Studyof:+profiles+friend-networkmapping+post-demographics

Studyof:+events,disasters,+elec1ons,revolu1onsand+socialcauses

SocialMediaMethods:+screen-scraped+crawledfrommul1plewebsites +co-linkanalysis

SocialMediaMethods:+callingAPIs+crawling+networkanalysis+algorithmsstudies

Adapted from Rogers, 2017 (forthcoming)

Gramática das Redes Sociais


Economia da atenção [ou de likes]

+Likes+Posts+Tweets+Retweets+Replies+Shares+Hahstags

+Tagging+Geoloca1on+InstalledApps+Follow/Followers

‘Grammars of Action’ – Agre, 1994 ‘Follow the medium’- Rogers, 2013

which“digitalobjectsareavailable,howaretheyhandledbythedevice,andhowcanonelearnfrommediummethod,andrepurposeitforsocialresearch”(Rogers,2015,p.10).


Elements for cross-platform analysis - Rogers, 2017 (forthcoming) adapted from Rieder, 2015

Elementos para análises

Front-End

AçãodoU1lizador[ex.no1ficações,comoalimentaa

plataforma,segngs]

ResultadodoAlgoritmo

[cadaplataformatemumabasedefuncionamento]

Back-End

API[ex.commonprac1ces,ratelimites,

governance]

Algoritmo[cadaplataformatemumabasede

funcionamento]


Acesso à Informação/Dados

Social Media APIs: What to Look for?

HistoryUnderstanding the philosophy and policy

Identifying new products built + purchased by the platform

Common practices

Management of connectionsUsers practices

Functions

Call frequency governance

How far back in time data is made accessible?

Content moderation

Methodological issues

Data detail + Platform changes + Data reliability

Quality and representativeness of a sampleWhat type of data it is possible to collect?

How about lurkers?

Legal and Ethical issues Informed consent x Anonymization

Default policy


What to Look for in Social Media APIs?



2009 2013 2014 2015 2016

Netvizz

First time I

used this app

Using Netvizz to access Facebook

data:

Personal Networks [Friendship Connection +

Like Network]

Groups [Open or Private]

[Friendship Connection + Interactions]

Pages

[Posts by page or Posts by page and user]

[Page like Network – depth 1 and 2]

Using Netvizz to access Facebook

data:


Like Network]



Pages



Using Netvizz to access Facebook data:

:


Like Network]



Pages



New

Limits on the last posts

retrieved +

Facebook new

Cookies Policy


Apps + Software

Digital Methods Initiative Tools https://wiki.digitalmethods.net/Dmi/ToolDatabase

MÉDIALAB - SciencesPo Tools http://www.medialab.sciences-po.fr/tools/

Media Analysis [media monitoring, mapping, clouding, comparative media analysis] Data Treatment [data collection, data analysis, information visualization] Natively Digital [the link, the url, the tag, the domain, the PageRank, the robots.txt] Device Centric [Google, Google imagaes, Google news, Google blog search, Yahoo, Wikipedia, Alexa, IssueCraler, Twitter, Facebook, Amazon, iTunes, Wayback, YouTube, Instagram, Github] Spherical[web sphere, news sphere, blogsphere, tag sphere, video sphere, image sphere, code sphere]

Density Design - Raw http://raw.densitydesign.org/

Bernhard Rieder – Research Software http://labs.polsys.net/


Estratégias para Extração de Dados

q Considerar a cultura da (s) plataforma (s)

q Possibilidades e limitações = APIs e APPs

q Objectos digitais q Delimitar plataforma (s) + query design q Especificar período de análise q Organizar dataset q Definir abordagens analíticas

Abordagens Analíticas


q Critical Analytics q Engagement Metrics [Five metrics of engagement: dominant voice, concern, commitment, positioning, alignment – Rogers, 19 fev 2016] hhps://www.youtube.com/watch?v=sNwl-qGrK7M&list=PLKzQwIKtJvv_cfzQWIaVCb1H60xaeDjkL

q Network Analysis q Statistics Summaries

q Content Analysis [visual or textual]

q Hashtag Exploration


Facebook: Page Like Network Omena,2016athhps://thesocialplaAorms.wordpress.com/2016/07/21/facebook-page-like-network-using-ahributes-and-metrics/


Facebook: Page Like Network

» Conexões da página [diretas e indiretas]

» Pode revelar novas conexões ou fontes de informação » Apresenta novas perspectivas em relação ao posicionamento da página [a não conexão também diz qualquer coisa » ex. FB post id 10211579706635026 ]

» Identificar Clusters [modularity] » Analisar popularidade/ atividade [degree] e autoridade [pagerank]

» Debate na rede [talking about count] » Participação do Utilizador [a página permite que o utilizador faça publicações? Se sim, são visíveis na timeline?]


Facebook: Page Data

» Visão geral da Página (s) e análise dos utilizadores: i)Resumo estatístico da reação dos utilizadores ii)Análise temporal das atividades dos utilizadores e da página » Posts e tópicos de discussão » Análise de Comentários [Rieder et al, 2015; Omena e Rosa, 2015]


Tumblr: Hashtag Exploration


Tumblr: Hashtag Exploration

» Co-hashtag network: i)  Orientação sócio-política ou

representatividade cultural ii) Programas e anti-programas » Debate + Localização » Análise de conteúdo [textual e visual]

» Categorias: i)Principal ii) Event-based iii) Less popular iv) Program x Anti-program v) Humourous [Omena, 2016, forthcoming]

What makes a good sample on social media?


OBRIGADA ;-)

Janna Joceli C. de Omena PhDcandidateatUTAus1nIPortugal(FCSH)

@jannajoceli/thesocialplaAorms.wordpress.com