MultitaskClusteredLogisticRegression.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.
 *
 * Copyright (C) 2012 Sergey Lisitsyn
 */

#ifndef  MULTITASKCLUSTEREDLOGISTICREGRESSION_H_
#define  MULTITASKCLUSTEREDLOGISTICREGRESSION_H_

#include <shogun/transfer/multitask/MultitaskLogisticRegression.h>

namespace shogun
{
class CMultitaskClusteredLogisticRegression : public CMultitaskLogisticRegression
{

    public:
        MACHINE_PROBLEM_TYPE(PT_BINARY)

        
        CMultitaskClusteredLogisticRegression();

        CMultitaskClusteredLogisticRegression(
             float64_t rho1, float64_t rho2, CDotFeatures* training_data, 
             CBinaryLabels* training_labels, CTaskGroup* task_group,
             int32_t num_clusters);

        virtual ~CMultitaskClusteredLogisticRegression();

        int32_t get_rho1() const; 

        void set_rho1(float64_t rho1); 

        int32_t get_rho2() const;

        void set_rho2(float64_t rho2);

        int32_t get_num_clusters() const;

        void set_num_clusters(int32_t num_clusters);

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

    protected:

        virtual bool train_machine(CFeatures* data=NULL);
        
        virtual bool train_locked_implementation(SGVector<index_t>* tasks);

    protected:

        float64_t m_rho1;
        
        float64_t m_rho2;

        int32_t m_num_clusters;
};
}
#endif