PolynomialKernel.cc

Go to the documentation of this file.

// -*- 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.
// 
// THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
// NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
// TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// 
// 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: PolynomialKernel.cc,v 1.4 2004/04/07 23:15:17 morinf Exp $
   * This file is part of the PLearn library.
   ******************************************************* */

#include "PolynomialKernel.h"

namespace PLearn {
using namespace std;



PLEARN_IMPLEMENT_OBJECT(PolynomialKernel, "ONE LINE DESCR", "NO HELP");

real PolynomialKernel::evaluate(const Vec& x1, const Vec& x2) const
{ return evaluateFromDot(dot(x1,x2)); }

real PolynomialKernel::evaluate_i_j(int i, int j) const
{ return evaluateFromDot(data->dot(i,j)); }

real PolynomialKernel::evaluate_i_x(int i, const Vec& x, real squared_norm_of_x) const 
{ return evaluateFromDot(data->dot(i,x)); } 

real PolynomialKernel::evaluate_x_i(const Vec& x, int i, real squared_norm_of_x) const
{ return evaluateFromDot(data->dot(i,x)); } 

void PolynomialKernel::declareOptions(OptionList &ol)
{
    declareOption(ol, "n", &PolynomialKernel::n, OptionBase::buildoption,
                  "TODO: Some comments");
    declareOption(ol, "beta", &PolynomialKernel::beta, OptionBase::buildoption,
                  "TODO: Some comments");
    inherited::declareOptions(ol);
}

} // end of namespace PLearn

---