CrowdSheet: Instant Implementation and Out-of-Hand Execution of Complex Crowdsourcing

We demonstrate CrowdSheet, a spreadsheet interface for implementing complex crowdsourcing. Despite its appeal, adoption of the spreadsheet paradigm is associated with two nontrivial problems: (1) how to design the interface, which must be a natural extension of existing spreadsheets, while guaranteeing a reasonable expressive power, and (2) how to incorporate techniques for improving data quality without sacrificing the spreadsheet's easy-to-use feature. In this demo, we show three things. First, CrowdSheet allows non IT experts to easily implement crowdsourcing applications with complex workflows. Second, CrowdSheet adopts only new two spreadsheet functions to implement a fairly wide range of real-world applications. Third, its modular architecture gives CrowdSheet a declarative feature that lets users choose alternative plans for improving data quality, while keeping the CrowdSheet description simple.