Artefact ActorNetworks

as tie between social networks and artefact networks

Wolfgang Reinhardt - Matthias Moi - Tobias VarlemannUniversity of Paderborn, Germany

5th International Conference on Collaborative Computing 2009, Washington D.C.

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What areArtefact actor networks ?

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pbArtefact-Actor-Networks are an

approach to connect social networks and artefact networks, with the goal to

create more meaningful semantic connections between artefacts and actors.

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Social networks

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Artefact networksW

iki

Blog

Mic

rob

log

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Artefact networksW

iki

Blog

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log

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Types of semantic Relations ?

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Projectspace A Projectspace B Projectspace C

isReferencedBy

referencing

isUsed

uses

isSupervisorOf

isSupervisedBy

isAuthormodfier

owner

Organization

Team A Team B

isColleagueOf

Board of directors

isSupervisedBy

isSuperviserOf

isColleagueOf

Actor ~ Actor

• describe possible relations between actors in communities

• FOAF project can be extended by special semantic relations (e.g. isSupervisedBy or isColleagueOf)

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Artefact ~ Artefact

Projectspace A Projectspace B Projectspace C

isReferencedBy

referencing

isUsed

uses

isSupervisorOf

isSupervisedBy

Organization

isReferencedBy

isVersionOf linksTo

Artefact storage A Artefact storage B Artefact storage C

• describe possible relations between artefacts

• Dublin Core and SIOC provide a good base for relations

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Organization

Projectspace A Projectspace B Projectspace C

isReferencedBy

referencing

isUsed

uses

isSupervisorOf

isSupervisedBy

isAuthormodfier

owner

Artefact ~ Actor

• combine the first two relation types

• additionally describing the kind of interaction with an artefact (owner, modifier ...)

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What‘s The USE of it ?

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Increase of artefact and user awareness.

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Visualizing how networks evolved over time.

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Identifying similar artefacts and experts for specific topics and

domains.

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Analyzing different levels of communication and cooperation.

+ =

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SemantiC Similarity ?

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• Storage of all artefacts with subsequent semantic analysis• Storage of additional metadata• each metadata has a certain relevance for the artefact • two artefacts are similar if their metadata is similar

Twittercompany

SMStechnology

United Statescountry

APIkeyword

Tagskeyword

Twittertype:wiki

http://en.wikipedia.org/wiki/Twitter

relevance = 0.70

relevance = 0.25

relevance = 0.85 relevance = 1.0

relevance = 0.9

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Implementation?

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• Crawlers, Analyzers• Open Calais• AlchemyAPI

• RDF• Jena Framework

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Use case scenarios ?

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Co-Authorship

Co-Citation-Analysis

Blogosphere

Learning Networks

Communities of Practice

Communities of Interest

Social Software Engineering

SocialLearning

Information Quality Maps

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What‘s Next?

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pb• finalize implementation

• real life tests at conferences and research communities• Blogs, Twitter, Papers, Delicious ...

• enhanced visualizations

Want to know more? http://twitter.com/wollepbhttp://isitjustme.dehttp://artefact-actor-networks.net

Thank you

Wolfgang ReinhardtUniversity of Paderborn

Institute of Computer ScienceWorking Group Didactics of Informatics

http://ddi.upb.de