Comparison of the infrared luminosity LIR estimated from the 24 μm luminosity (COSMOS sample) or 8, 24, 70 and 160 μm luminosities (local sample) with that estimated with NRK (), for the COSMOS (left panel) and SWIRE (middle panel) samples. We also compare with the one estimated from the SED fitting (, right panel). In each panel, the dashed and dotted lines refer to a factor ratio of 2 and 5 respectively. The distributions of LIR are shown in the bottom part of each panel. The numbers in each panel refer to the logarithm of the mean and dispersion of the luminosity ratio for the star-forming galaxies.