Predictive selection of item attributes likely to be useful in refining a search

A computer-implemented method for refining a search, the computer-implemented method comprising:

• as implemented by one or more computing devices configured with specific executable instructions,
• receiving a search request to search for items represented in an electronic data store, wherein the search request includes one or more search criteria;
• identifying an entry corresponding to the received search criteria in a mapping table, wherein each entry in the mapping table associates search criteria with one or more item attributes that have been determined to be useful for subdividing a plurality of items matching the search criteria into multiple groups of items;
• and
• providing a selectable option to use a range of numeric attribute values for at least one of the one or more item attributes included in the mapping table entry to refine the search request, wherein the range of numeric attribute values is selectable from two or more ranges of numeric attribute values presented in association with the selectable option.

A non-transitory computer-readable medium storing computer executable instructions that, when executed by one or more computing devices, configure the one or more computing devices to perform operations comprising:

• receiving a search string in association with a request to search for items represented in an electronic data store;
• identifying an entry corresponding to the received search string in a mapping table, wherein the entry in the mapping table associates the search string with two or more ranges of numeric item attribute values that have been determined to be useful for subdividing a plurality of items matching the search request into two or more groups of items;
• and
• providing a selectable option to select at least one of the two or more ranges of numeric item attribute values included in the mapping table entry to refine the search request, wherein the two or more ranges of numeric item attribute values are presented in association with the selectable option.