Dataset Type

Gist

Color Histogram

Texture

Color Patches

Gradient

Deep Learning

Objects

Combined

One-per-user

0.07

0.12

0.20

0.23

0.26

0.28

0.23

0.31

User-mix

0.13

0.15

0.22

0.29

0.32

0.33

0.30

0.36

User-specific

0.16

0.23

0.32

0.36

0.34

0.26

0.33

0.40