PLearn 0.1
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#include <RowAtPositionVariable.h>
Public Member Functions | |
RowAtPositionVariable () | |
Default constructor for persistence. | |
RowAtPositionVariable (Variable *input1, Variable *input2, int the_length) | |
virtual string | classname () const |
virtual OptionList & | getOptionList () const |
virtual OptionMap & | getOptionMap () const |
virtual RemoteMethodMap & | getRemoteMethodMap () const |
virtual RowAtPositionVariable * | 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 | |
virtual void | rfprop () |
Static Public Member Functions | |
static string | _classname_ () |
RowAtPositionVariable. | |
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 void | declareOptions (OptionList &ol) |
Declare options (data fields) for the class. | |
Static Public Attributes | |
static StaticInitializer | _static_initializer_ |
Protected Member Functions | |
void | build_ () |
This does the actual building. | |
Protected Attributes | |
int | length_ |
Private Types | |
typedef BinaryVariable | inherited |
* Variables positionned inside a larger zero variable ... *
A variable of length() 'length()', and of width() input1->nelems(), filled with zeros except for the row indexed by input2, which is a copy of input1 (this is used in particular for the symbolic bprop of VarRowVariable)
Definition at line 59 of file RowAtPositionVariable.h.
typedef BinaryVariable PLearn::RowAtPositionVariable::inherited [private] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 61 of file RowAtPositionVariable.h.
PLearn::RowAtPositionVariable::RowAtPositionVariable | ( | ) |
Default constructor for persistence.
Definition at line 56 of file RowAtPositionVariable.cc.
: length_(-1) { }
string PLearn::RowAtPositionVariable::_classname_ | ( | ) | [static] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 54 of file RowAtPositionVariable.cc.
OptionList & PLearn::RowAtPositionVariable::_getOptionList_ | ( | ) | [static] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 54 of file RowAtPositionVariable.cc.
RemoteMethodMap & PLearn::RowAtPositionVariable::_getRemoteMethodMap_ | ( | ) | [static] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 54 of file RowAtPositionVariable.cc.
Reimplemented from PLearn::BinaryVariable.
Definition at line 54 of file RowAtPositionVariable.cc.
Object * PLearn::RowAtPositionVariable::_new_instance_for_typemap_ | ( | ) | [static] |
Reimplemented from PLearn::Object.
Definition at line 54 of file RowAtPositionVariable.cc.
StaticInitializer RowAtPositionVariable::_static_initializer_ & PLearn::RowAtPositionVariable::_static_initialize_ | ( | ) | [static] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 54 of file RowAtPositionVariable.cc.
void PLearn::RowAtPositionVariable::bprop | ( | ) | [virtual] |
Implements PLearn::Variable.
Definition at line 108 of file RowAtPositionVariable.cc.
References i, PLearn::BinaryVariable::input1, PLearn::BinaryVariable::input2, and PLearn::Variable::matGradient.
{ int i = (int)input2->valuedata[0]; input1->gradient += matGradient(i); }
void PLearn::RowAtPositionVariable::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 67 of file RowAtPositionVariable.cc.
References PLearn::BinaryVariable::build(), and build_().
{ inherited::build(); build_(); }
void PLearn::RowAtPositionVariable::build_ | ( | ) | [protected] |
This does the actual building.
Reimplemented from PLearn::BinaryVariable.
Definition at line 74 of file RowAtPositionVariable.cc.
References PLearn::BinaryVariable::input1, PLearn::BinaryVariable::input2, and PLERROR.
Referenced by build(), and RowAtPositionVariable().
{ if (input1 && input2) { if(!input1->isRowVec()) PLERROR("In RowAtPositionVariable: input1 must be a single row"); if(!input2->isScalar()) PLERROR("In RowAtPositionVariable: position must be a scalar"); } }
string PLearn::RowAtPositionVariable::classname | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 54 of file RowAtPositionVariable.cc.
void PLearn::RowAtPositionVariable::declareOptions | ( | OptionList & | ol | ) | [static] |
Declare options (data fields) for the class.
Redefine this in subclasses: call declareOption
(...) for each option, and then call inherited::declareOptions(options)
. Please call the inherited
method AT THE END to get the options listed in a consistent order (from most recently defined to least recently defined).
static void MyDerivedClass::declareOptions(OptionList& ol) { declareOption(ol, "inputsize", &MyObject::inputsize_, OptionBase::buildoption, "The size of the input; it must be provided"); declareOption(ol, "weights", &MyObject::weights, OptionBase::learntoption, "The learned model weights"); inherited::declareOptions(ol); }
ol | List of options that is progressively being constructed for the current class. |
Reimplemented from PLearn::BinaryVariable.
Definition at line 85 of file RowAtPositionVariable.cc.
References PLearn::OptionBase::buildoption, PLearn::declareOption(), PLearn::BinaryVariable::declareOptions(), and length_.
{ declareOption(ol, "length_", &RowAtPositionVariable::length_, OptionBase::buildoption, ""); inherited::declareOptions(ol); }
static const PPath& PLearn::RowAtPositionVariable::declaringFile | ( | ) | [inline, static] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 71 of file RowAtPositionVariable.h.
: void build_();
RowAtPositionVariable * PLearn::RowAtPositionVariable::deepCopy | ( | CopiesMap & | copies | ) | const [virtual] |
Reimplemented from PLearn::BinaryVariable.
Definition at line 54 of file RowAtPositionVariable.cc.
void PLearn::RowAtPositionVariable::fprop | ( | ) | [virtual] |
compute output given input
Implements PLearn::Variable.
Definition at line 100 of file RowAtPositionVariable.cc.
References PLearn::TVec< T >::clear(), i, PLearn::BinaryVariable::input1, PLearn::BinaryVariable::input2, PLearn::Variable::matValue, and PLearn::Variable::value.
OptionList & PLearn::RowAtPositionVariable::getOptionList | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 54 of file RowAtPositionVariable.cc.
OptionMap & PLearn::RowAtPositionVariable::getOptionMap | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 54 of file RowAtPositionVariable.cc.
RemoteMethodMap & PLearn::RowAtPositionVariable::getRemoteMethodMap | ( | ) | const [virtual] |
Reimplemented from PLearn::Object.
Definition at line 54 of file RowAtPositionVariable.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 91 of file RowAtPositionVariable.cc.
References PLearn::BinaryVariable::input1, length_, and PLearn::Var::width().
void PLearn::RowAtPositionVariable::rfprop | ( | ) | [virtual] |
Reimplemented from PLearn::Variable.
Definition at line 121 of file RowAtPositionVariable.cc.
References i, PLearn::BinaryVariable::input1, PLearn::BinaryVariable::input2, PLearn::TVec< T >::length(), PLearn::Variable::matRValue, PLearn::BinaryVariable::resizeRValue(), and PLearn::Variable::rValue.
{ if (rValue.length()==0) resizeRValue(); //rValue.clear(); int i = (int)input2->valuedata[0]; matRValue(i) << input1->rValue; }
void PLearn::RowAtPositionVariable::symbolicBprop | ( | ) | [virtual] |
compute a piece of new Var graph that represents the symbolic derivative of this Var
Reimplemented from PLearn::Variable.
Definition at line 115 of file RowAtPositionVariable.cc.
References PLearn::Variable::g, PLearn::BinaryVariable::input1, and PLearn::BinaryVariable::input2.
Reimplemented from PLearn::BinaryVariable.
Definition at line 71 of file RowAtPositionVariable.h.
int PLearn::RowAtPositionVariable::length_ [protected] |
Definition at line 64 of file RowAtPositionVariable.h.
Referenced by declareOptions(), and recomputeSize().