Crowdsourcing marketplaces have been flourishing over the last decade, providing a new source of income for hundreds of thousands of people around the globe. Different from microtasks, which are simple and require innate human intelligence in return for small amounts of monetary compensation, the work available on freelancing platforms or in macrotasks often requires a skilled workforce, considerably more time to complete, but the associated rewards are relatively larger and commensurate. Therefore, forming efficient collaboration among workers and finding experts are crucial for ensuring the quality of macrotasks. Worker preselection can be used to ensure that desirable workers participate in available tasks in crowdsourcing marketplaces. In this chapter, we describe two novel preselection mechanisms that have been shown to be effective in microtask crowdsourcing. We discuss how these preselection mechanisms can be used within macrotasks.
Recommended citation: Gadiraju U., Zhuang M. (2019) What You Sow, So Shall You Reap! Toward Preselection Mechanisms for Macrotask Crowdsourcing. In: Khan VJ., Papangelis K., Lykourentzou I., Markopoulos P. (eds) Macrotask Crowdsourcing. Human–Computer Interaction Series. Springer, Cham. https://doi.org/10.1007/978-3-030-12334-5_6