SequenceLabels.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) 2012-2013 Fernando José Iglesias García
 * Copyright (C) 2012-2013 Fernando José Iglesias García
 */

#ifndef _SEQUENCE_LABELS__H__
#define _SEQUENCE_LABELS__H__

#include <shogun/lib/config.h>

#include <shogun/labels/StructuredLabels.h>
#include <shogun/lib/SGVector.h>
#include <shogun/lib/StructuredData.h>
#include <shogun/lib/StructuredDataTypes.h>

namespace shogun
{

class CSequenceLabels;

class CSequence : public CStructuredData
{
public:
    STRUCTURED_DATA_TYPE(SDT_SEQUENCE);

    CSequence(SGVector< int32_t > seq = SGVector<int32_t>()) : CStructuredData(), data(seq) { }

    ~CSequence() { }

    static CSequence* obtain_from_generic(CStructuredData* base_data)
    {
        if ( base_data->get_structured_data_type() == SDT_SEQUENCE )
            return (CSequence*) base_data;
        else
            SG_SERROR("base_data must be of dynamic type CSequence\n")

        return NULL;
    }

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

    SGVector<int32_t> get_data() const { return data; }

protected:
    SGVector< int32_t > data;

};

class CSequenceLabels : public CStructuredLabels
{
    public:
        CSequenceLabels();

        CSequenceLabels(int32_t num_labels, int32_t num_states);

        CSequenceLabels(SGVector< int32_t > labels, int32_t label_length, int32_t num_labels, int32_t num_states);

        virtual ~CSequenceLabels();

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

        void add_vector_label(SGVector< int32_t > label);

        inline int32_t get_num_states() const { return m_num_states; };

    private:
        void init();

    private:
        int32_t m_num_states;

}; /* CSequenceLabels */

} /* namespace shogun */

#endif /* _SEQUENCE_LABELS__H__ */