Table 9. Feedback prediction scores by CF and LTO approaches.
items | i1 | i2 | i3 | i4 | i5 | i6 | i7 | i8 | i9 | i10 | i11 | i12 | i13 | i14 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Active user | 1 | 4 | 1 | 3 | 1 | 2 | 2 | 1 | 5 | 2 | 5 | 2 | 5 | 2 |
CF | 2.9 | 2.9 | 2.9 | 3.1 | 3.3 | 2.7 | 2.8 | 2.5 | 2.9 | 2.4 | 2.9 | 2.4 | 2.9 | 2.9 |
R | R | R | R | R | R | R | R | R | N | R | N | R | R | |
LTO | 0.4 | 4.3 | 2.4 | 2.3 | 2.2 | 2.5 | 1.8 | 2.4 | 3.9 | 2.3 | 5 | 3 | 3.7 | 3.3 |
N | R | N | N | N | R | N | N | R | N | R | R | R | R |