Nikolaos Kargas

Crowdsourcing via Pairwise Co-occurrences: Identifiability and Algorithms

The data deluge comes with high demands for data labeling. Crowdsourcing (or, more generally, ensemble learning) techniques aim to produce accurate labels via integrating noisy, non-expert labeling from annotators. The classic Dawid-Skene estimator and its accompanying expectation maximization (EM)…