Supervised learning from multiple experts: whom to trust when everyone lies a bit

  • Authors:
  • Vikas C. Raykar;Shipeng Yu;Linda H. Zhao;Anna Jerebko;Charles Florin;Gerardo Hermosillo Valadez;Luca Bogoni;Linda Moy

  • Affiliations:
  • Siemens Healthcare, Malvern, PA;Siemens Healthcare, Malvern, PA;University of Pennsylvania, Philadelphia, PA;Siemens Healthcare, Malvern, PA;Siemens Healthcare, Malvern, PA;Siemens Healthcare, Malvern, PA;Siemens Healthcare, Malvern, PA;New York University School of Medicine, New York, NY

  • Venue:
  • ICML '09 Proceedings of the 26th Annual International Conference on Machine Learning
  • Year:
  • 2009

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Abstract

We describe a probabilistic approach for supervised learning when we have multiple experts/annotators providing (possibly noisy) labels but no absolute gold standard. The proposed algorithm evaluates the different experts and also gives an estimate of the actual hidden labels. Experimental results indicate that the proposed method is superior to the commonly used majority voting baseline.