...Yuping Xing; Yongzhao Zhan Purpose For ranking aggregation in crowdsourcing task, the key issue is how to select the optimal working group with a given number of workers to optimize the performance of their aggregation. Performance prediction for ranking aggregation can solve this issue...

.... The WikiRate project’s tagline is “crowdsource better companies” and this bakes in two fundamental constraints – the subject and means of production of the KA – further solidified by the fact that the project is funded under the European Commission Framework Programme 7 area “Collective Awareness Platforms...