Reference documentation and code samples for the Discovery Engine V1 API module Google::Cloud::DiscoveryEngine::V1::SearchRequest::RankingExpressionBackend.
The backend to use for the ranking expression evaluation.
Constants
RANKING_EXPRESSION_BACKEND_UNSPECIFIED
value: 0 Default option for unspecified/unknown values.
RANK_BY_EMBEDDING
value: 3 Ranking by custom embedding model, the default way to evaluate the
ranking expression.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-09-11 UTC."],[],[],null,[]]
