1. A method for predicting the placement of road signs, the method comprising: receiving data depicting at least one road sign; determining a feature vector for the data depicting at least one road sign; determining, by a processor, a predetermined relative placement of a road sign as compared to a road from which the data was collected; applying a function g(x) for the predetermined relative placement that indicates a highest score from a scoring function f(x) for the feature vector (x) and a relative placement (y), wherein g(x) =argmax y f(x,y); and storing, by the processor, the relative placement of the road sign in a model that associates placement of road signs with at least one characteristic of the road from which the data was collected, wherein the model is accessible to interpret subsequentsets of data describing at least one road sign.