Table 6.

Analysis of NEAT’s Credibility versus baselines in approximating credibility proxy

Methods	Thread nDCG@2	Thread Spearman	Forum Spearman
Random	0.7968	-0.0271	0.0
Post frequency	0.8812	0.4223	0.1924
Question frequency	0.8341	0.1773	0.0279
NEAT’s Credibility	0.8856	0.4403	0.3055

The Thread nDCG@2, Thread Spearman, and Forum Spearman columns respectively denote the values of Normalized Discounted Cumulative Gain at 2 at thread level, Spearman’s rank correlation coefficient at thread level and forum level of each method when using rankings by number of thanks as ground truths