/usr/include/shogun/distributions/GHMM.h is in libshogun-dev 1.1.0-4ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* Written (W) 1999-2009 Soeren Sonnenburg
* Copyright (C) 1999-2009 Fraunhofer Institute FIRST and Max-Planck-Society
*/
#ifndef _CGHMM_H___
#define _CGHMM_H___
#include <shogun/mathematics/Math.h>
#include <shogun/features/Features.h>
#include <shogun/distributions/Distribution.h>
namespace shogun
{
/** @brief class GHMM - this class is non-functional and was meant to implement a
* Generalize Hidden Markov Model (aka Semi Hidden Markov HMM). */
class CGHMM : public CDistribution
{
public:
/** default constructor */
CGHMM();
virtual ~CGHMM();
/** learn distribution
*
* @param data training data (parameter can be avoided if distance or
* kernel-based classifiers are used and distance/kernels are
* initialized with train data)
*
* @return whether training was successful
*/
virtual bool train(CFeatures* data=NULL);
/** get number of model parameters
*
* @return number of model parameters
*/
virtual int32_t get_num_model_parameters();
/** get logarithm of given model parameter
*
* @param param_num which param
* @result logarithm of given model parameter
*/
virtual float64_t get_log_model_parameter(int32_t param_num);
/** get logarithm of one example's derivative's likelihood
*
* @param param_num which example's param
* @param num_example which example
* @return logarithm of example's derivative's likelihood
*/
virtual float64_t get_log_derivative(int32_t param_num, int32_t num_example);
/** get logarithm of one example's likelihood
*
* @param num_example which example
* @return logarithm of example's likelihood
*/
virtual float64_t get_log_likelihood_example(int32_t num_example);
/** Returns the name of the SGSerializable instance. It MUST BE
* the CLASS NAME without the prefixed `C'.
*
* @return name of the SGSerializable
*/
virtual const char* get_name() const { return "GHMM"; }
};
}
#endif
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