/usr/include/shogun/distributions/PositionalPWM.h is in libshogun-dev 3.1.1-1.
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) 2011 Soeren Sonnenburg
* Copyright (C) 2011 Berlin Institute of Technology and Max-Planck-Society
*/
#ifndef _POSITIONAL_PWM_H__
#define _POSITIONAL_PWM_H__
#include <shogun/distributions/Distribution.h>
#include <shogun/features/StringFeatures.h>
#include <shogun/lib/common.h>
#include <shogun/mathematics/Math.h>
namespace shogun
{
/** @brief Positional PWM */
class CPositionalPWM : public CDistribution
{
public:
/** default constructor */
CPositionalPWM();
virtual ~CPositionalPWM();
/** learn distribution
*
* @param data training data
*
* @return whether training was successful
*/
virtual bool train(CFeatures* data=NULL);
/** get number of parameters in model
*
* @return number of parameters in model
*/
virtual int32_t get_num_model_parameters();
/** get model parameter (logarithmic)
*
* @return model parameter (logarithmic) if num_param < m_dim returns
* an element from the mean, else return an element from the covariance
*/
virtual float64_t get_log_model_parameter(int32_t num_param);
/** get partial derivative of likelihood function (logarithmic)
*
* @param num_param derivative against which param
* @param num_example which example
* @return derivative of likelihood (logarithmic)
*/
virtual float64_t get_log_derivative(
int32_t num_param, int32_t num_example);
/** compute log likelihood for example
*
* abstract base method
*
* @param num_example which example
* @return log likelihood for example
*/
virtual float64_t get_log_likelihood_example(int32_t num_example);
/** get log likelihood window
* @param window
* @param len
* @param pos
*/
float64_t get_log_likelihood_window(uint8_t* window, int32_t len, float64_t pos);
/** get sigma
*/
virtual float64_t get_sigma()
{
return m_sigma;
}
/** set sigma
*
* @param sigma new sigma
*/
virtual void set_sigma(float64_t sigma)
{
m_sigma=sigma;
}
/** get mean
*/
virtual float64_t get_mean()
{
return m_mean;
}
/** set mean
*
* @param mean new mean
*/
virtual void set_mean(float64_t mean)
{
m_mean=mean;
}
/** set pwm
*
* @param pwm new pwm (values must be in logspace)
*/
virtual void set_pwm(SGMatrix<float64_t> pwm)
{
m_pwm = pwm;
}
/** get pwm
*
* @return current pwm
*/
virtual SGMatrix<float64_t> get_pwm() const
{
return m_pwm;
}
/** get w
*
* @return current w
*/
virtual SGMatrix<float64_t> get_w() const
{
return m_w;
}
/** get poim u
*
* @param d degree for which poim should be obtained
*
* @return poim u
*/
virtual SGMatrix<float64_t> get_scoring(int32_t d);
/** compute w
* @param num_pos
*/
void compute_w(int32_t num_pos);
/** compute scoring
* @param max_degree
*/
void compute_scoring(int32_t max_degree);
/** @return object name */
virtual const char* get_name() const { return "PositionalPWM"; }
private:
/** Initialize parameters for serialization */
void register_params();
protected:
/** pwm */
SGMatrix<float64_t> m_pwm;
/** sigma */
float64_t m_sigma;
/** mean */
float64_t m_mean;
/** w */
SGMatrix<float64_t> m_w;
/** poim */
SGVector<float64_t> m_poim;
};
}
#endif //_POSITIONAL_PWM_H__
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