Sheng, Victor S., and Jing Zhang. “Machine Learning With Crowdsourcing: A Brief Summary of the Past Research and Future Directions”. Proceedings of the AAAI Conference on Artificial Intelligence 33, no. 01 (July 17, 2019): 9837-9843. Accessed April 24, 2024. https://ojs.aaai.org/index.php/AAAI/article/view/5059.