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The backend to use for the ranking expression evaluation.
Enums
RANKING_EXPRESSION_BACKEND_UNSPECIFIED
Default option for unspecified/unknown values.
BYOE
Deprecated: UseRANK_BY_EMBEDDINGinstead. Ranking by custom embedding model, the default way to evaluate the ranking expression. Legacy enum option,RANK_BY_EMBEDDINGshould be used instead.
CLEARBOX
Deprecated: UseRANK_BY_FORMULAinstead. Ranking by custom formula. Legacy enum option,RANK_BY_FORMULAshould be used instead.
RANK_BY_EMBEDDING
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 2025-08-20 UTC."],[],[],null,["# RankingExpressionBackend\n\nThe backend to use for the ranking expression evaluation."]]
