PLearn 0.1
RowSumSquareVariable.h
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00001 // -*- C++ -*-
00002 
00003 // PLearn (A C++ Machine Learning Library)
00004 //
00005 // Copyright (C) 2006 University of Montreal
00006 
00007 // Redistribution and use in source and binary forms, with or without
00008 // modification, are permitted provided that the following conditions are met:
00009 // 
00010 //  1. Redistributions of source code must retain the above copyright
00011 //     notice, this list of conditions and the following disclaimer.
00012 // 
00013 //  2. Redistributions in binary form must reproduce the above copyright
00014 //     notice, this list of conditions and the following disclaimer in the
00015 //     documentation and/or other materials provided with the distribution.
00016 // 
00017 //  3. The name of the authors may not be used to endorse or promote
00018 //     products derived from this software without specific prior written
00019 //     permission.
00020 // 
00021 // THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
00022 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
00023 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
00024 // NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00025 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
00026 // TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
00027 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00028 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00029 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00030 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00031 // 
00032 // This file is part of the PLearn library. For more information on the PLearn
00033 // library, go to the PLearn Web site at www.plearn.org
00034 
00035 
00036 /* *******************************************************      
00037  * $Id: RowSumSquareVariable.h 3994 2005-08-25 13:35:03Z chapados $
00038  * This file is part of the PLearn library.
00039  ******************************************************* */
00040 
00041 #ifndef RowSumSquareVariable_INC
00042 #define RowSumSquareVariable_INC
00043 
00044 #include "UnaryVariable.h"
00045 
00046 namespace PLearn {
00047 using namespace std;
00048 
00049 
00050 class RowSumSquareVariable: public UnaryVariable
00051 {
00052     typedef UnaryVariable inherited;
00053 
00054 public:
00056     RowSumSquareVariable() {}
00057 
00059     RowSumSquareVariable(Variable* input, bool call_build_ = true);
00060 
00061     PLEARN_DECLARE_OBJECT(RowSumSquareVariable);
00062 
00063     virtual void build();
00064 
00065     virtual void recomputeSize(int& l, int& w) const;
00066     virtual void fprop();
00067     virtual void bprop();
00068 
00069 private:
00070 
00071     void build_();
00072 
00073 };
00074 
00075 DECLARE_OBJECT_PTR(RowSumSquareVariable);
00076 
00077 inline Var rowSumSquare(Var v)
00078 { 
00079     return new RowSumSquareVariable(v); 
00080 }
00081 
00082 } // end of namespace PLearn
00083 
00084 #endif 
00085 
00086 
00087 /*
00088   Local Variables:
00089   mode:c++
00090   c-basic-offset:4
00091   c-file-style:"stroustrup"
00092   c-file-offsets:((innamespace . 0)(inline-open . 0))
00093   indent-tabs-mode:nil
00094   fill-column:79
00095   End:
00096 */
00097 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=79 :
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