Building Data Curation Processes with Crowd Intelligence

Tianwa Chen, Lei Han, Gianluca Demartini, Marta Indulska, Shazia W. Sadiq

Abstract: Data curation processes constitute a number of activities, such as transforming, filtering or de-duplicating data. These processes consume an excessive amount of time in data science projects, due to datasets often being external, re-purposed and generally not ready for analytics. Overall, data curation processes are difficult to automate and require human input, which results in a lack of repeatability and potential errors propagating into analytical results. In this paper, we explore a crowd intelligence-based approach to building robust data curation processes. We study how data workers engage with data curation activities, specifically related to data quality detection, and how to build a robust and effective data curation process by learning from the wisdom of the crowd. With the help of a purpose-designed data curation platform based on iPython Notebook, we conducted a lab experiment with data workers and collected a multi-modal dataset that includes measures of task performance and behaviour data. Our findings identify avenues by which effective data curation processes can be built through crowd intelligence.