Parallel search result pipeline evaluations

Abstract

The disclosed techniques run multiple indexing pipelines and multiple search pipelines on a local device. Search results are presented in a first ordering according to a default search pipeline using data generated by one or more of the indexing pipelines. Other orderings of search results generated by other search pipelines are similarly generated. A user selection of one of the search results is received. Search pipelines that ranked the selected result higher than the default pipeline are identified as being better aligned with actual user preferences. Different indexing pipelines may utilize different indices, different thresholds, among other variations. Search result feedback may be aggregated from multiple users to identify more accurate, more efficient, or otherwise better search pipelines. This feedback may also be used to personalize the default search pipeline for a particular user or a particular class of users.