In this visualization, Berkeley is segmented into regions, where each region is shaded by the predicted rating of the closest restaurant (yellow is 5 stars, blue is 1 star). Each dot represents a restaurant. The color of the dot is determined by the restaurant's location. For example, restaurants on the north half of campus are colored orange.
These sandwich shop recommendations were generated for a sample user that tended to prefer expensive restaurants. You can see that the predicted rating for the Golden Bear Cafe (an expensive cafe) is much higher than the other restaurants.