2026-04-13T02:07:21Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1895442025-12-05T09:55:01Zcom_2072_1057col_2072_478917col_2072_478920

00925njm 22002777a 4500 dc Beñaran-Muñoz, Iker author Hernández-González, Jerónimo author Pérez, Aritz author 2022-10-03T09:57:56Z 2022-10-03T09:57:56Z 2022-09-08 2022-10-03T09:57:57Z Crowdsourcing is a popular cheap alternative in machine learning for gathering information from a set of annotators. Learning from crowd-labelled data involves dealing with its inherent uncertainty and inconsistencies. In the classical framework, each annotator provides a single label per example, which fails to capture the complete knowledge of annotators. We propose candidate labelling, that is, to allow annotators to provide a set of candidate labels for each example and thus express their doubts. We propose an appropriate model for the annotators, and present two novel learning methods that deal with the two basic steps (label aggregation and model learning) sequentially or jointly. Our empirical study shows the advantage of candidate labelling and the proposed methods with respect to the classical framework. Aprenentatge automàtic Cultura participativa Dades massives Machine learning Participatory culture Big data Machine learning from crowds using candidate set-based labelling