PLearn 0.1
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multiplies 2 matrix vars of same size elementwise More...
#include <TimesVariable.h>
Public Member Functions | |
TimesVariable () | |
Default constructor for persistence. | |
TimesVariable (Variable *input1, Variable *input2) | |
virtual string | classname () const |
virtual OptionList & | getOptionList () const |
virtual OptionMap & | getOptionMap () const |
virtual RemoteMethodMap & | getRemoteMethodMap () const |
virtual TimesVariable * | deepCopy (CopiesMap &copies) const |
virtual void | build () |
Post-constructor. | |
virtual void | recomputeSize (int &l, int &w) const |
Recomputes the length l and width w that this variable should have, according to its parent variables. | |
virtual void | fprop () |
compute output given input | |
virtual void | bprop () |
virtual void | symbolicBprop () |
compute a piece of new Var graph that represents the symbolic derivative of this Var | |
Static Public Member Functions | |
static string | _classname_ () |
TimesVariable. | |
static OptionList & | _getOptionList_ () |
static RemoteMethodMap & | _getRemoteMethodMap_ () |
static Object * | _new_instance_for_typemap_ () |
static bool | _isa_ (const Object *o) |
static void | _static_initialize_ () |
static const PPath & | declaringFile () |
Static Public Attributes | |
static StaticInitializer | _static_initializer_ |
Protected Member Functions | |
void | build_ () |
This does the actual building. | |
Private Types | |
typedef BinaryVariable | inherited |
multiplies 2 matrix vars of same size elementwise
Definition at line 53 of file TimesVariable.h.
typedef BinaryVariable PLearn::TimesVariable::inherited [private] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 55 of file TimesVariable.h.
PLearn::TimesVariable::TimesVariable | ( | ) | [inline] |
string PLearn::TimesVariable::_classname_ | ( | ) | [static] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 55 of file TimesVariable.cc.
OptionList & PLearn::TimesVariable::_getOptionList_ | ( | ) | [static] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 55 of file TimesVariable.cc.
RemoteMethodMap & PLearn::TimesVariable::_getRemoteMethodMap_ | ( | ) | [static] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 55 of file TimesVariable.cc.
Reimplemented from PLearn::BinaryVariable.
Definition at line 55 of file TimesVariable.cc.
Object * PLearn::TimesVariable::_new_instance_for_typemap_ | ( | ) | [static] |
Reimplemented from PLearn::Object.
Definition at line 55 of file TimesVariable.cc.
StaticInitializer TimesVariable::_static_initializer_ & PLearn::TimesVariable::_static_initialize_ | ( | ) | [static] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 55 of file TimesVariable.cc.
void PLearn::TimesVariable::bprop | ( | ) | [virtual] |
Implements PLearn::Variable.
Definition at line 96 of file TimesVariable.cc.
References PLearn::Variable::gradientdata, PLearn::BinaryVariable::input1, PLearn::BinaryVariable::input2, and PLearn::Variable::nelems().
{ for(int k=0; k<nelems(); k++) { input1->gradientdata[k] += input2->valuedata[k]*gradientdata[k]; input2->gradientdata[k] += input1->valuedata[k]*gradientdata[k]; } }
void PLearn::TimesVariable::build | ( | ) | [virtual] |
Post-constructor.
The normal implementation should call simply inherited::build(), then this class's build_(). This method should be callable again at later times, after modifying some option fields to change the "architecture" of the object.
Reimplemented from PLearn::BinaryVariable.
Definition at line 64 of file TimesVariable.cc.
References PLearn::BinaryVariable::build(), and build_().
{ inherited::build(); build_(); }
void PLearn::TimesVariable::build_ | ( | ) | [protected] |
This does the actual building.
Reimplemented from PLearn::BinaryVariable.
Definition at line 71 of file TimesVariable.cc.
References PLearn::BinaryVariable::input1, PLearn::BinaryVariable::input2, PLearn::Var::length(), PLERROR, and PLearn::Var::width().
Referenced by build(), and TimesVariable().
{ if (input1 && input2) { if(input1->length() != input2->length() || input1->width() != input2->width()) PLERROR("In TimesVariable: input1 and input2 must have exactly the same size"); } }
string PLearn::TimesVariable::classname | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 55 of file TimesVariable.cc.
static const PPath& PLearn::TimesVariable::declaringFile | ( | ) | [inline, static] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 62 of file TimesVariable.h.
: void build_();
TimesVariable * PLearn::TimesVariable::deepCopy | ( | CopiesMap & | copies | ) | const [virtual] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 55 of file TimesVariable.cc.
void PLearn::TimesVariable::fprop | ( | ) | [virtual] |
compute output given input
Implements PLearn::Variable.
Definition at line 89 of file TimesVariable.cc.
References PLearn::BinaryVariable::input1, PLearn::BinaryVariable::input2, PLearn::Variable::nelems(), and PLearn::Variable::valuedata.
OptionList & PLearn::TimesVariable::getOptionList | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 55 of file TimesVariable.cc.
OptionMap & PLearn::TimesVariable::getOptionMap | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 55 of file TimesVariable.cc.
RemoteMethodMap & PLearn::TimesVariable::getRemoteMethodMap | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 55 of file TimesVariable.cc.
Recomputes the length l and width w that this variable should have, according to its parent variables.
This is used for ex. by sizeprop() The default version stupidly returns the current dimensions, so make sure to overload it in subclasses if this is not appropriate.
Reimplemented from PLearn::Variable.
Definition at line 80 of file TimesVariable.cc.
References PLearn::BinaryVariable::input1, PLearn::BinaryVariable::input2, PLearn::Var::length(), and PLearn::Var::width().
void PLearn::TimesVariable::symbolicBprop | ( | ) | [virtual] |
compute a piece of new Var graph that represents the symbolic derivative of this Var
Reimplemented from PLearn::Variable.
Definition at line 106 of file TimesVariable.cc.
References PLearn::Variable::g, PLearn::BinaryVariable::input1, and PLearn::BinaryVariable::input2.
Reimplemented from PLearn::BinaryVariable.
Definition at line 62 of file TimesVariable.h.