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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def initialize_weights(self):
 """Randomly initializes the visible-to-hidden connections."""

        n = self._outputSize
        m = self._inputSize
        self._Q = self._random.sample((n,m))

        # Normalize the weights of each units
        for i in range(n):
            self._Q[i] /=  np.sqrt( np.dot(self._Q[i], self._Q[i]) )