Math Problem Statement
LSTM公式详细求导过程
Solution
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Math Problem Analysis
Mathematical Concepts
LSTM (Long Short-Term Memory)
RNN (Recurrent Neural Network)
Gate Mechanisms in LSTM
Formulas
Forget Gate: ft = σ(Wf ⋅ [ht-1, xt] + bf)
Input Gate: it = σ(Wi ⋅ [ht-1, xt] + bi)
Candidate Cell State: 𝚽𝚩Ct = tanh(WC ⋅ [ht-1, xt] + bC)
Output Gate: ot = σ(Wo ⋅ [ht-1, xt] + bo)
Update Cell State: Ct = ft ⋅ Ct-1 + it ⋅ 𝚽𝚩Ct
Update Hidden State: ht = ot ⋅ tanh(Ct)
Theorems
Chain Rule in Gradient Descent
Suitable Grade Level
Graduate Level
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