Reference documentation and code samples for the Discovery Engine V1BETA API module Google::Cloud::DiscoveryEngine::V1beta::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"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-10-02 UTC."],[],[],null,[]]
