Conference Talk - The 15th ACM International Conference on Web Search and Data Mining. February 15th, 2022. Phoenix, U.S.A. Held remotely as a pre-recorded contribution due to the COVID-19 pandemic.
Due to their relatively low cost and ability to scale, crowdsourcing based approaches are widely used to collect a large amount of human annotated data. To this aim, multiple crowdsourcing platforms exist, where requesters can upload tasks and …