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Design and Prototyping of a Social Media Observatory Karissa McKelvey and Filippo Menczer Center for Complex Networks and Systems Research School of Informatics and Computing Indiana University, Bloomington 1

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Web Observatory Workshop at the International World Wide Web Conference, 2013.

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Page 1: Design and Prototyping of a Social Media Observatory

1

Design and Prototyping of a Social Media Observatory

Karissa McKelvey and Filippo Menczer

Center for Complex Networks and Systems ResearchSchool of Informatics and Computing

Indiana University, Bloomington

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truthy.indiana.edu 2

Can we use social media as laboratories for social

science?

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Political Polarization on Twitter Michael Conover, Jacob Ratkiewicz, Bruno Gonçalves, Alessandro Flammini & Filippo Menczer International Conference on Weblogs and Social Media 2011

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Data “mine” ing

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Data “ours” ing

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truthy.indiana.edu

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Design and Prototyping

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Social Mediastreaming

sensitive

very large

structured

multiple sources

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Design Considerations

ReliabilityReproducibilityTopic FilteringVisualizationOpen AccessLegal Compliance

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Design Considerations

ReliabilityReproducibilityTopic FilteringVisualizationOpen AccessLegal Compliance

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Reliability

• Spam and misinformation

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celebrities

spam

astroturf

politics

12

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Reliability

• Spam and misinformation

• Cleansing and tagging by social, algorithmic, or other means

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Reliability

• Spam and misinformation

• Cleansing and tagging by social, algorithmic, or other means

• Sampling bias

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Data Collection

• Twitter Streaming API, random sample

• August, 2010 – present

• 5TB Compressed

• Real-time access to data from last 9 months related to 3 themes: US Politics, Social Movements, News

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Design Considerations

ReliabilityReproducibilityTopic FilteringVisualizationOpen AccessLegal Compliance

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Reproducibility

• Standard ontology for the storage, reference, and transfer of these datasets between users.

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Model• Events– Post on a social media site

• Users– Actors in the post– Sender, receiver, forwarder, etc

• Meme– Discernable unit of information transfer– Eg, hashtag, URL, user, phrase…

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Meme Diffusion Networks

truthy.indiana.edu

Retweet (forward) Mention (conversation)

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Design Considerations

ReliabilityReproducibilityTopic FilteringVisualizationOpen AccessLegal Compliance

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Design Considerations

ReliabilityReproducibilityTopic FilteringVisualizationOpen AccessLegal Compliance

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Design Considerations

ReliabilityReproducibilityTopic FilteringVisualizationOpen AccessLegal Compliance

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Open Access

• A public and free -- or low-cost -- social observatory enables access to large-scale social media data analytics for non-profit endeavors.

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API & Website

• Filterable and searchable interface to find memes of interest

• Endpoints for users to access data programmatically

• Visualizations

truthy.indiana.edu/apidoc

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Design Considerations

ReliabilityReproducibilityTopic FilteringVisualizationOpen AccessLegal Compliance

Page 29: Design and Prototyping of a Social Media Observatory

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Legal Compliance

• Terms of Service– Tweet text– Derived data

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truthy.indiana.edu

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Thanks!


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