Dravnieks and colleagues created a database comprising 160 odorants, while Keller et al. developed the DREAM dataset, consisting of 480 structurally diverse molecules with continuous values assigned to sensory attributes such as odor intensity and pleasantness . On the other hand, both Goodscents and Leffingwell datasets have more than three thousand molecules, and 113 unique odor descriptors, the sensory data as binary presence or absence of odor descriptor .