Faster R-CNN offers region of interest to perform convolution on it while YOLO does detection and classification at the same time. YOLO makes less than half the number of background errors as compared to Faster R-CNN.

abbreviation for "you only live once": used, especially on social media, to mean that you should do things that are enjoyable or exciting, even if they are silly or slightly dangerous: Finished the whole carton of ice cream. YOLO.