Table 2.

The values of nDCG@k and Hit Rate@k (k = 1, 5, 10). The bold values are the maximum values for each evaluation metrics, respectively.

Metric		nDCG@k [$\times {10}^{-2}$]			Hit Rate@k [%]
	k = 1	k = 5	k = 10	k = 1	k = 5	k = 10
PM-A	18.2	24.7	26.2	18.2	30.9	37.9
PM-P	19.3	25.6	27.9	19.3	33.4	40.4
PM-N	18.2	26.1	26.8	18.2	32.9	39.6
PM-AP	17.5	23.5	24.8	17.5	29.8	36.8
PM-AN	17.0	24.9	24.5	17.0	27.2	34.2
PM-PN	18.7	22.1	24.6	18.7	30.5	38.1
PM-ALL	18.0	23.0	24.1	18.0	29.0	36.0
CM1	10.2	13.9	17.2	10.2	21.8	28.8
CM2 [17]	0.00	0.52	0.40	0.00	0.43	1.03
CM3 [49]	3.42	5.30	6.22	3.42	6.71	11.5
CM4 [36]	3.59	4.30	5.94	3.59	7.05	12.0