dagstuhl2014

4
Prof. Dr. Philippe Cudre-Mauroux 1 http://exascale.info

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Intro slides, Dagstuhl seminar on Crowdsourcing and the Semantic Web, Prof. Philippe Cudre-Mauroux, eXascale Infolab, http://exascale.info/

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Page 1: Dagstuhl2014

Prof. Dr. Philippe Cudre-Mauroux

1

http://exascale.info

Page 2: Dagstuhl2014

ZenCrowd Architecture

Page 3: Dagstuhl2014

Does it Work?

• Improves avg. prec. by 0.14 on average!– Minimal crowd involvement– Embarrassingly parallel problem

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Transactive Search

Adapting the concept of transactive memories (group memories) from psychology

➡Transactive search methods to elicit information

■ Social network analysis (to direct the search)■ Crowdsourcing (to get the information)■ 46% improvement (F1) over best alternative