KernelVMatrix.h

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// -*- C++ -*-

// PLearn (A C++ Machine Learning Library)
// Copyright (C) 1998 Pascal Vincent
// Copyright (C) 1999-2002 Pascal Vincent, Yoshua Bengio, Rejean Ducharme and University of Montreal
// Copyright (C) 2001-2002 Nicolas Chapados, Ichiro Takeuchi, Jean-Sebastien Senecal
// Copyright (C) 2002 Xiangdong Wang, Christian Dorion

// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
// 
//  1. Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
// 
//  2. Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
// 
//  3. The name of the authors may not be used to endorse or promote
//     products derived from this software without specific prior written
//     permission.
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// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
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// This file is part of the PLearn library. For more information on the PLearn
// library, go to the PLearn Web site at www.plearn.org


/* *******************************************************      
   * $Id: KernelVMatrix.h,v 1.3 2004/07/21 16:30:55 chrish42 Exp $
   * This file is part of the PLearn library.
   ******************************************************* */

#ifndef KernelVMatrix_INC
#define KernelVMatrix_INC

#include <plearn/ker/Kernel.h>
#include "VMatrix.h"

namespace PLearn {
using namespace std;


class KernelVMatrix: public VMatrix
{
    typedef VMatrix inherited;
 //protected:
protected:
  VMat d1;
  VMat d2;
  Ker ker;

  Vec input1;
  Vec input2;

public:
  KernelVMatrix();
  KernelVMatrix(VMat data1, VMat data2, Ker the_ker);

  PLEARN_DECLARE_OBJECT(KernelVMatrix);
  static void declareOptions(OptionList &ol);

  virtual void build();

  //DECLARE_NAME_AND_DEEPCOPY(KernelVMatrix);
  //virtual void makeDeepCopyFromShallowCopy(map<const void*, void*>& copies);
  virtual real get(int i, int j) const;
  virtual void getSubRow(int i, int j, Vec v) const;
private:
    void build_();
};

DECLARE_OBJECT_PTR(KernelVMatrix);

} // end of namespace PLearn

#endif

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