Computational Intelligence and Neuroscience

Research Article

[Retracted] Recommending Crowdfunding Project: A Graph Kernel-Based Link Prediction Method for Extremely Sparse Implicit Feedback

Table 4

HR of balanced and unbalanced collection methods on extremely sparse dataset.
No. of negative feedbacks per userBalanced methodUnbalanced method
10.529430.10329
20.525010.19405
30.509070.24883
40.505230.28936