46. A physical memory device including instructions for execution by one or more processors, the physical memory device including: instructions for receiving a plurality of search query/search result document pairings, where each search query/search result document pairing, of the pairings, includes a search query and a search result document associated with the search query; instructions for generating, for each of the pairings, a objective data derived from each of the pairings, where the objective data, for a particular one of the pairings that comprises a particular search result document and a particular search query, includes: first data based on a time between when search result documents, associated with the particular search query, are presented, and when the particular search result document, is selected, and second data based on a value indicating a portion of users that select another search result document, of the search result documents associated with the particular search query, before selecting the particular search result document; instructions for obtaining information associated with a relevance evaluation, from a human evaluator, for each of the pairings, each of the relevance evaluations measuring a relevance of a search query to a corresponding search result document, of a search query/search result document pairing; and instructions for training an evaluation model, based on the obtained information associated with the relevance evaluations and the objective data, to predict a human relevance evaluation that is used to rank additional search query/search result document pairings, where each search query/search result document pairing, of the additional search query/search result document pairings, includes a search query and a search result document.
46. A physical memory device including instructions for execution by one or more processors, the physical memory device including: instructions for receiving a plurality of search query/search result document pairings, where each search query/search result document pairing, of the pairings, includes a search query and a search result document associated with the search query; instructions for generating, for each of the pairings, a objective data derived from each of the pairings, where the objective data, for a particular one of the pairings that comprises a particular search result document and a particular search query, includes: first data based on a time between when search result documents, associated with the particular search query, are presented, and when the particular search result document, is selected, and second data based on a value indicating a portion of users that select another search result document, of the search result documents associated with the particular search query, before selecting the particular search result document; instructions for obtaining information associated with a relevance evaluation, from a human evaluator, for each of the pairings, each of the relevance evaluations measuring a relevance of a search query to a corresponding search result document, of a search query/search result document pairing; and instructions for training an evaluation model, based on the obtained information associated with the relevance evaluations and the objective data, to predict a human relevance evaluation that is used to rank additional search query/search result document pairings, where each search query/search result document pairing, of the additional search query/search result document pairings, includes a search query and a search result document. 51. The physical memory device of claim 46 , where the search result documents include business listings, and where the objective data further includes: third data indicating whether a term in the particular search query matches a prefix portion of a name of a business in the business listings, fourth data indicating whether a term in the particular search query is a substring of the name of the business, or fifth data indicating whether the particular search query exactly matches the name of the business.