VariationalGaussianLikelihood.h

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/*
 * Copyright (c) The Shogun Machine Learning Toolbox
 * Written (w) 2014 Wu Lin
 * All rights reserved.
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 *    list of conditions and the following disclaimer.
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#ifndef _VARIATIONALGAUSSIANLIKELIHOODMODEL_H_
#define _VARIATIONALGAUSSIANLIKELIHOODMODEL_H_

#include <shogun/lib/config.h>

#include <shogun/machine/gp/VariationalLikelihood.h>
#include <shogun/base/SGObject.h>
#include <shogun/labels/Labels.h>
#include <shogun/mathematics/Math.h>

namespace shogun
{

class CVariationalGaussianLikelihood : public CVariationalLikelihood
{
public:
    CVariationalGaussianLikelihood();

    virtual ~CVariationalGaussianLikelihood() {};

    virtual bool set_variational_distribution(SGVector<float64_t> mu,
        SGVector<float64_t> s2, const CLabels* lab);

    virtual void set_noise_factor(float64_t noise_factor);
protected:
    SGVector<float64_t> m_mu;

    SGVector<float64_t> m_s2;

    virtual void init_likelihood()=0;

private:
    void init();

    float64_t m_noise_factor;
};
}

#endif /* _VARIATIONALGAUSSIANLIKELIHOODMODEL_H_ */