1. A system for estimating a location label of a vector dataset without any location label from a plurality of vector datasets respectively with location labels using a computer, the system comprising: storage means provided in the computer; means for storing the vector datasets in the storage means of the computer; means for calculating the similarity between the vector dataset without any location label and each neighboring vector dataset with a location label, by using any one of a q-norm wherein 0<q<1 and an exponential attenuation function; and means for estimating the location label of the vector data without any location label from the calculated similarities.