University of Glasgow (qirdcsuog) at TREC Crowdsourcing 2011 : TurkRank-network-based worker ranking in crowdsourcing

Whiting, Stewart, Perez, Jesus Rodriguez, Zuccon, Guido, Leelanupab, Teerapong, & Jose, Joemon M (2011) University of Glasgow (qirdcsuog) at TREC Crowdsourcing 2011 : TurkRank-network-based worker ranking in crowdsourcing. In The Twentieth Text REtrieval Conference (TREC 2011) Proceedings [NIST Special Publication: SP 500-296], National Institute of Standards and Technology (NIST) , pp. 1-7.

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Abstract

For TREC Crowdsourcing 2011 (Stage 2) we propose a networkbased approach for assigning an indicative measure of worker trustworthiness in crowdsourced labelling tasks. Workers, the gold standard and worker/gold standard agreements are modelled as a network. For the purpose of worker trustworthiness assignment, a variant of the PageRank algorithm, named TurkRank, is used to adaptively combine evidence that suggests worker trustworthiness, i.e., agreement with other trustworthy co-workers and agreement with the gold standard. A single parameter controls the importance of co-worker agreement versus gold standard agreement. The TurkRank score calculated for each worker is incorporated with a worker-weighted mean label aggregation.

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ID Code: 69284
Item Type: Conference Paper
Refereed: No
Divisions: Current > Schools > School of Information Systems
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 17 Jun 2014 23:02
Last Modified: 21 Jun 2014 11:31

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