what is the param "ptb_rate " of PrePtbDataset means ?

[chengglmotto]

ie: ptb_rate=0.05 means ptb 0.05% or 5%?

[ChandlerBang]

Hi,

ptb_rate means perturbation rate, which is the ratio of changed edges to total edges. For example, if we have 1000 edges in the original graph, ptb_rate=0.05 indicates that we change 50 edges (5%) in this graph.