RationalApproximationCGMJob.h

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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) 2013 Soumyajit De
 */

#ifndef RATIONAL_APPROXIMATION_CGM_JOB_H_
#define RATIONAL_APPROXIMATION_CGM_JOB_H_

#include <shogun/lib/config.h>

#include <shogun/lib/computation/job/IndependentJob.h>

namespace shogun
{
template<class T> class SGVector;
template<class T> class CLinearOperator;
template<class T> class CStoreScalarAggregator;
class CCGMShiftedFamilySolver;

class CRationalApproximationCGMJob : public CIndependentJob
{
public:
    CRationalApproximationCGMJob();

    CRationalApproximationCGMJob(CStoreScalarAggregator<float64_t>* aggregator,
        CCGMShiftedFamilySolver* linear_solver,
        CLinearOperator<float64_t>* linear_operator,
        SGVector<float64_t> vector, SGVector<complex128_t> shifts,
        SGVector<complex128_t> weights, float64_t const_multiplier);

    virtual ~CRationalApproximationCGMJob();

    virtual void compute();

    virtual const char* get_name() const
    {
        return "RationalApproximationCGMJob";
    }

private:
    CLinearOperator<float64_t>* m_operator;

    SGVector<float64_t> m_vector;

    CCGMShiftedFamilySolver* m_linear_solver;

    SGVector<complex128_t> m_shifts;

    SGVector<complex128_t> m_weights;

    float64_t m_const_multiplier;

    void init();
};

}

#endif // RATIONAL_APPROXIMATION_CGM_JOB_H_