Eliminating the Effect of Rating Bias on Reputation Systems

Table 2

The correlation between the users’ reputation scores and their personal MSE values. We apply Kendall’s tau to measure the correlation between the two ranking lists, respectively, generated by ranking users decreasingly according to their reputation scores (the higher, the better) and by ranking users increasingly according to their MSE values (the lower, the better). For each dataset, the highest value is emphasized in bold.

Datasets	IB	CR	IR	IARR
M1	0.980	0.433	0.945	0.192
M2	0.664	0.169	0.638	0.213
M3	0.371	0.146	0.279	0.247
NF	0.449	0.115	0.311	0.255