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Ucb1

Struct Ucb1 

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pub struct Ucb1 { /* private fields */ }
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UCB1 選択

score = success_rate + c * sqrt(ln(total_visits) / visits) + learned_bonus

  • 成功率が高いノードを優先(活用)
  • 訪問回数が少ないノードにボーナス(探索)
  • Provider から学習済みボーナスを加算

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impl Ucb1

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pub fn new(c: f64) -> Self

指定した探索係数で生成

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pub fn with_weights(c: f64, learning_weight: f64) -> Self

探索係数と学習ボーナス係数を指定して生成

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pub fn with_default_c() -> Self

デフォルトの探索係数(√2)で生成

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pub fn c(&self) -> f64

探索係数を取得

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pub fn learning_weight(&self) -> f64

学習ボーナス係数を取得

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pub fn compute_score( &self, stats: &SwarmStats, action: &str, target: Option<&str>, provider: &dyn LearnedProvider, ) -> f64

UCB1 スコアを計算(コンテキストなし、後方互換用)

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pub fn compute_score_with_context( &self, stats: &SwarmStats, action: &str, target: Option<&str>, provider: &dyn LearnedProvider, prev_action: Option<&str>, prev_prev_action: Option<&str>, ) -> f64

UCB1 スコアを計算(コンテキスト付き)

Provider に confidence_with_context クエリを投げて学習ボーナスを取得。

Trait Implementations§

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impl Clone for Ucb1

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fn clone(&self) -> Ucb1

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Ucb1

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for Ucb1

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<N, E, S> SelectionLogic<N, E, S> for Ucb1
where N: Debug + Clone + ActionExtractor, E: Debug + Clone, S: MapState,

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fn next( &self, map: &GraphMap<N, E, S>, stats: &SwarmStats, provider: &dyn LearnedProvider, ) -> Option<MapNodeId>

次のノードを1つ選択
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fn select( &self, map: &GraphMap<N, E, S>, count: usize, stats: &SwarmStats, provider: &dyn LearnedProvider, ) -> Vec<MapNodeId>

次のノードを複数選択
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fn score( &self, action: &str, target: Option<&str>, stats: &SwarmStats, provider: &dyn LearnedProvider, ) -> f64

ノードのスコアを計算
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fn name(&self) -> &str

名前

Auto Trait Implementations§

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impl Freeze for Ucb1

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impl RefUnwindSafe for Ucb1

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impl Send for Ucb1

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impl Sync for Ucb1

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impl Unpin for Ucb1

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impl UnwindSafe for Ucb1

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> Pointable for T

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const ALIGN: usize

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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