Clustering techniques to automatically create groups of geographic regions

A method comprising:

• storing attribute data about a plurality of regions, wherein the attribute data for each region of the plurality of regions comprises a plurality of data values, each corresponding to a different time period of a plurality of time periods;
• selecting, from the plurality of regions, a first region and a second region that is different than the first region;
• based on the attribute data, identifying first attribute data about the first region and second attribute data about the second region, wherein the first attribute data comprises a first plurality of data values and the second attribute data comprises a second plurality of data values;
• performing a comparison of first attribute data with the second attribute data, wherein performing the comparison comprises, for each time period of the plurality of time periods, computing a ratio of a first data value in the first plurality of data values and a second data value in the second plurality of data values;
• wherein a plurality of ratios are computed based on the comparison;
• determining whether the plurality of ratios satisfy one or more criteria;
• in response to determining that the plurality of ratios satisfy the one or more criteria, storing association data that associates the first region with the second region;
• wherein the method is performed by one or more computing devices.

One or more storage media storing instructions which, when executed by one or more processors, cause:

• storing attribute data about a plurality of regions;
• based on the attribute data, classifying each region of the plurality of regions as belonging to a tier of a plurality of tiers;
• generating a first plurality of region groups, each region group comprising at least two regions assigned to different tiers of the plurality of tiers;
• for each region group of the first plurality of region groups, generating group attribute data for said each region group;
• performing a comparison of first group attribute data of a first region group of the first plurality of region groups with the group attribute data of each other region group of the first plurality of region groups;
• based on results of the comparison, storing first arrangement data that associates a second region group, of the first plurality of region groups, with the first region group.