Bots Filtering in Crowd Sourcing Dr. Andrey Mishchenko

Yandex School of Data Analysis Conference Machine Learning: Prospects and Applications Toloka is a Yandex crowdsourcing platform, a kind of Russian version of the Amazon Mechanical Turk. It offers some payment for performing simple tasks and thus suffers from bots trying to replace the human workers and cheat the system. This report covers our experience of dealing with this problem. Embedding the tasks with known answers (honeypots) may