MediaPipeTasksDecision Framework Reference

ChoiceQuestion

struct ChoiceQuestion: Sendable, Equatable

Configuration for evaluating a mutually exclusive categorical choice menu.

• init(choices:descriptions:temperature:instructions:scoringMode:normalizePrior:)

  Declaration

  Swift

  init(choices: [String], descriptions: [String]? = nil, temperature: Float = 0.0, instructions: String = "", scoringMode: ScoringMode = .lengthNormalizedLogProb, normalizePrior: Bool = false)

• init(options:temperature:instructions:scoringMode:normalizePrior:)

  Creates a ChoiceQuestion from an ordered list of (key, description) tuples.

  Declaration

  Swift

  init(options: [(key: String, description: String)], temperature: Float = 0.0, instructions: String = "", scoringMode: ScoringMode = .lengthNormalizedLogProb, normalizePrior: Bool = false)

• choices

  Ordered list of option keys.

  Declaration

  Swift

  var choices: [String]

• descriptions

  Optional descriptions corresponding 1:1 with choices.

  Declaration

  Swift

  var descriptions: [String]?

• instructions

  Optional task instructions prepended to the choice prompt.

  Declaration

  Swift

  var instructions: String

• normalizePrior

  Whether to normalize option log-probabilities against the empty-context prior.

  Declaration

  Swift

  var normalizePrior: Bool

• scoringMode

  Multi-token log-probability aggregation strategy.

  Declaration

  Swift

  var scoringMode: ScoringMode

• temperature

  Softmax temperature override (0.0 uses the model's calibrated default).

  Declaration

  Swift

  var temperature: Float