3. The computer-implemented method of claim 1 , further comprising modifying the ranking algorithm associated with the second search index based at least in part on at least one of the second search results or data that is independent of the second search results.
1. A computer-implemented method, comprising: identifying, by a computer system, a search query including a text string; searching a first data set using a first search index based at least in part on the search query; obtaining first search results including a subset of the first data set; determining a context associated with the search query based at least in part on the first search results; identifying a second search index from among a plurality of indices based at least in part on the context associated with the search query, the plurality of indices created prior to identifying the second search index; searching the first search results using the second search index; obtaining second search results from among the subset of the first data set based at least in part on said searching the first search results using the second search index; ranking at least a part of the second search results with respect to each other based at least in part on a ranking algorithm of the second search index; and modifying the second search index based at least in part on the ranked part of the second search results, wherein the plurality of indices are modified at a rate that is greater than a rate at which the first search index is modified.