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Table 12 Correlation between understandability, relevance and usefulness in the context of topic 1

From: Evaluation of a question generation approach using semantic web for supporting argumentation

 

Correlation between understandability and usefulness

Correlation between relevance and usefulness

System-GQ

0.31 (weak relationship)

0.76 (strong positive)

p = 0.03 (significant)

p < 0.00001 (significant)

Human-GQ

0.57 (moderate positive)

0.81 (strong positive)

p < 0.00001 (significant)

p < 0.00001 (significant)