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Table 10 Pearson’s correlation of the different features of the questions

From: How do machine-generated questions compare to human-generated questions?

  Relevance Fluency Ambiguity Pedagogy Depth
Relevance   0.398 0.331 0.168 0.140
Fluency    0.328 0.202 0.124
Ambiguity     0.061 −0.013
Pedagogy      0.800
Depth