CPC G06Q 50/16 (2013.01) [G06Q 30/0205 (2013.01); G06Q 30/0206 (2013.01)] | 17 Claims |
1. A method in a computing system for estimating a value of a subject home, comprising:
creating a training set comprising data of sale transactions of a plurality of homes selected from homes in two or more region sizes;
periodically training one or more machine learning models, comprising at least one of a gradient boosting machine, a support vector machine, or a neural network, using the created training set,
wherein independent variables of the one or more machine learning models comprise, for each of a plurality of region sizes:
an independent variable identifying a region of the region size containing the subject home,
one or more independent variables each identifying a neighboring region of the region size that borders the region of the region size containing the subject home, wherein, for a respective region size, the region containing the subject home is non-overlapping with the neighboring region, and
one or more independent variables each determined from an aggregation of values of a home attribute across all homes, in the region of the region size containing the subject home, for which a value of the home attribute is available;
generating, for each region corresponding to each of the plurality of region sizes and based on a latitude/longitude pair associated with the subject home, a single computer-readable geohash encoding value,
wherein the single computer-readable geohash encoding value of a first region size is generated by discarding a least significant digit of the single computer-readable geohash encoding value of a second region size, the first region size being at a next-less-granular level than the second region size;
determining, based on the single computer-readable geohash encoding value, values of the trained one or more machine learning model's independent variables for the subject home;
applying the trained one or more machine learning models to the determined independent variable values to produce an estimate of the value of the subject home.
|