def __init__(self, vocab_size, wordvec_size, hidden_size):
        V, D, H = vocab_size, wordvec_size, hidden_size
        rn = np.random.randn

        embed_W = (rn(V, D) / 100).astype('f')
        lstm_Wx = (rn(D, 4 * H) / np.sqrt(D)).astype('f')
        lstm_Wh = (rn(H, 4 * H) / np.sqrt(H)).astype('f')
        lstm_b = np.zeros(4 * H).astype('f')

        self.embed = TimeEmbedding(embed_W)
        self.lstm = TimeLSTM(lstm_Wx, lstm_Wh, lstm_b, stateful=False)

        self.params = self.embed.params + self.lstm.params
        self.grads = self.embed.grads + self.lstm.grads
        self.hs = None
Esempio n. 2
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    def __init__(self, vocab_size, wordvec_size, hidden_size):
        V, D, H = vocab_size, wordvec_size, hidden_size
        rn = np.random.randn

        embed_W = (rn(V, D) / 100).astype('f')
        lstm_Wx = (rn(D, 4 * H) / np.sqrt(D)).astype('f')
        lstm_Wh = (rn(H, 4 * H) / np.sqrt(H)).astype('f')
        lstm_b = np.zeros(4 * H).astype('f')
        affine_W = (rn(H, V) / np.sqrt(H)).astype('f')
        affine_b = np.zeros(V).astype('f')

        self.embed = TimeEmbedding(embed_W)
        self.lstm = TimeLSTM(lstm_Wx, lstm_Wh, lstm_b, stateful=True)
        self.affine = TimeAffine(affine_W, affine_b)

        self.params, self.grads = [], []
        for layer in (self.embed, self.lstm, self.affine):
            self.params += layer.params
            self.grads += layer.grads