// Copyright (C) 2016 Davis E. King (davis@dlib.net) // License: Boost Software License See LICENSE.txt for the full license. #undef DLIB_DNn_UTILITIES_ABSTRACT_H_ #ifdef DLIB_DNn_UTILITIES_ABSTRACT_H_ #include "core_abstract.h" #include "../geometry/vector_abstract.h" namespace dlib { // ---------------------------------------------------------------------------------------- double log1pexp( double x ); /*! ensures - returns log(1+exp(x)) (except computes it using a numerically accurate method) !*/ // ---------------------------------------------------------------------------------------- void randomize_parameters ( tensor& params, unsigned long num_inputs_and_outputs, dlib::rand& rnd ); /*! ensures - This function assigns random values into params based on the given random number generator. In particular, it uses the parameter initialization method of formula 16 from the paper "Understanding the difficulty of training deep feedforward neural networks" by Xavier Glorot and Yoshua Bengio. - It is assumed that the total number of inputs and outputs from the layer is num_inputs_and_outputs. That is, you should set num_inputs_and_outputs to the sum of the dimensionalities of the vectors going into and out of the layer that uses params as its parameters. !*/ // ---------------------------------------------------------------------------------------- } #endif // DLIB_DNn_UTILITIES_ABSTRACT_H_