CrowDIY: How to Design and Adapt Collaborative Crowdsourcing Workflows Under Budget Constraints.

Workflow quality is a key determinant of crowdsourcing complex work, but finding ways to task design and plan has proved illusive. Instead, we formulate it as an optimization problem with budget constraints and fewer decision variables to set. We propose a two-staged approach CrowDIY that can not only estimate task attributes based on previous tasks but also optimize them with budget constraints in order to publish tasks more wisely in a timely manner. Several experimental studies have been conducted, and the results show compelling evidence that, under different conditions, the proposed approach can effectively reduce the workload of workflow design and plan, while avoiding commonly encountered trial-and-error in crowdsourcing workflows and leading up to successful complex outcomes.