PLearn 0.1
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#include <NoBpropVariable.h>
Public Member Functions | |
NoBpropVariable () | |
Default constructor for persistence. | |
NoBpropVariable (Variable *input, real the_gradient_scaling_factor=0.0) | |
virtual string | classname () const |
virtual OptionList & | getOptionList () const |
virtual OptionMap & | getOptionMap () const |
virtual RemoteMethodMap & | getRemoteMethodMap () const |
virtual NoBpropVariable * | 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 () |
Nothing to do by default. | |
virtual void | bprop () |
Nothing to do by default. | |
NoBpropVariable () | |
Default constructor for persistence. | |
NoBpropVariable (Variable *input, real *the_gradient_scaling_factor) | |
virtual string | classname () const |
virtual OptionList & | getOptionList () const |
virtual OptionMap & | getOptionMap () const |
virtual RemoteMethodMap & | getRemoteMethodMap () const |
virtual NoBpropVariable * | 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 () |
Nothing to do by default. | |
virtual void | bprop () |
Nothing to do by default. | |
Static Public Member Functions | |
static string | _classname_ () |
NoBpropVariable. | |
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 string | _classname_ () |
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. | |
Public Attributes | |
real | gradient_scaling_factor |
real * | gradient_scaling_factor |
Static Public Attributes | |
static StaticInitializer | _static_initializer_ |
Protected Member Functions | |
void | build_ () |
Object-specific post-constructor. | |
void | build_ () |
Object-specific post-constructor. | |
Private Types | |
typedef UnaryVariable | inherited |
typedef UnaryVariable | inherited |
* NoBpropVariable *
Variable that copies its unique input, and can completely block the flow of gradient backward, or optionally let if flow partially (with an optional coefficient), i.e. fprop: output = input bprop: dC/dinput = gradient_scaling_factor * dC/doutput
Definition at line 61 of file var/NoBpropVariable.h.
typedef UnaryVariable PLearn::NoBpropVariable::inherited [private] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 63 of file var/NoBpropVariable.h.
typedef UnaryVariable PLearn::NoBpropVariable::inherited [private] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 63 of file learners_experimental/NoBpropVariable.h.
PLearn::NoBpropVariable::NoBpropVariable | ( | ) | [inline] |
Default constructor for persistence.
Definition at line 70 of file var/NoBpropVariable.h.
: gradient_scaling_factor(0) {}
PLearn::NoBpropVariable::NoBpropVariable | ( | Variable * | input, |
real | the_gradient_scaling_factor = 0.0 |
||
) |
Definition at line 61 of file var/NoBpropVariable.cc.
References build_().
: inherited(input, input->length(), input->width()), gradient_scaling_factor(the_gradient_scaling_factor) { build_(); }
PLearn::NoBpropVariable::NoBpropVariable | ( | ) | [inline] |
Default constructor for persistence.
Definition at line 70 of file learners_experimental/NoBpropVariable.h.
: gradient_scaling_factor(0) {}
Definition at line 61 of file learners_experimental/NoBpropVariable.cc.
References build_().
: inherited(input, input->length(), input->width()), gradient_scaling_factor(the_gradient_scaling_factor) { build_(); }
string PLearn::NoBpropVariable::_classname_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 59 of file var/NoBpropVariable.cc.
static string PLearn::NoBpropVariable::_classname_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
static OptionList& PLearn::NoBpropVariable::_getOptionList_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
OptionList & PLearn::NoBpropVariable::_getOptionList_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 59 of file var/NoBpropVariable.cc.
RemoteMethodMap & PLearn::NoBpropVariable::_getRemoteMethodMap_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 59 of file var/NoBpropVariable.cc.
static RemoteMethodMap& PLearn::NoBpropVariable::_getRemoteMethodMap_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
Reimplemented from PLearn::UnaryVariable.
Definition at line 59 of file var/NoBpropVariable.cc.
Reimplemented from PLearn::UnaryVariable.
Object * PLearn::NoBpropVariable::_new_instance_for_typemap_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 59 of file var/NoBpropVariable.cc.
static Object* PLearn::NoBpropVariable::_new_instance_for_typemap_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
StaticInitializer NoBpropVariable::_static_initializer_ & PLearn::NoBpropVariable::_static_initialize_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 59 of file var/NoBpropVariable.cc.
static void PLearn::NoBpropVariable::_static_initialize_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
void PLearn::NoBpropVariable::bprop | ( | ) | [virtual] |
Nothing to do by default.
Reimplemented from PLearn::UnaryVariable.
Definition at line 105 of file var/NoBpropVariable.cc.
References gradient_scaling_factor, PLearn::Variable::gradientdata, and PLearn::UnaryVariable::input.
{ if(gradient_scaling_factor!=0) { for(int k=0; k<input->nelems(); k++) input->gradientdata[k] += gradient_scaling_factor*gradientdata[k]; } }
virtual void PLearn::NoBpropVariable::bprop | ( | ) | [virtual] |
Nothing to do by default.
Reimplemented from PLearn::UnaryVariable.
virtual void PLearn::NoBpropVariable::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::UnaryVariable.
void PLearn::NoBpropVariable::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::UnaryVariable.
Definition at line 69 of file var/NoBpropVariable.cc.
References PLearn::UnaryVariable::build(), and build_().
{ inherited::build(); build_(); }
void PLearn::NoBpropVariable::build_ | ( | ) | [protected] |
Object-specific post-constructor.
This method should be redefined in subclasses and do the actual building of the object according to previously set option fields. Constructors can just set option fields, and then call build_. This method is NOT virtual, and will typically be called only from three places: a constructor, the public virtual build()
method, and possibly the public virtual read method (which calls its parent's read). build_()
can assume that its parent's build_()
has already been called.
Reimplemented from PLearn::UnaryVariable.
void PLearn::NoBpropVariable::build_ | ( | ) | [protected] |
Object-specific post-constructor.
This method should be redefined in subclasses and do the actual building of the object according to previously set option fields. Constructors can just set option fields, and then call build_. This method is NOT virtual, and will typically be called only from three places: a constructor, the public virtual build()
method, and possibly the public virtual read method (which calls its parent's read). build_()
can assume that its parent's build_()
has already been called.
Reimplemented from PLearn::UnaryVariable.
Definition at line 76 of file var/NoBpropVariable.cc.
Referenced by build(), and NoBpropVariable().
{ }
string PLearn::NoBpropVariable::classname | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 59 of file var/NoBpropVariable.cc.
virtual string PLearn::NoBpropVariable::classname | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
void PLearn::NoBpropVariable::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::UnaryVariable.
Definition at line 81 of file var/NoBpropVariable.cc.
References PLearn::OptionBase::buildoption, PLearn::declareOption(), PLearn::UnaryVariable::declareOptions(), and gradient_scaling_factor.
{ declareOption(ol, "gradient_scaling_factor", &NoBpropVariable::gradient_scaling_factor, OptionBase::buildoption, "Factor by which the gradient flow is scaled. A value\n" "of zero completely prevents backward propagation of gradient to its input variable."); inherited::declareOptions(ol); }
static void PLearn::NoBpropVariable::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::UnaryVariable.
static const PPath& PLearn::NoBpropVariable::declaringFile | ( | ) | [inline, static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 75 of file learners_experimental/NoBpropVariable.h.
: void build_();
static const PPath& PLearn::NoBpropVariable::declaringFile | ( | ) | [inline, static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 75 of file var/NoBpropVariable.h.
: void build_();
virtual NoBpropVariable* PLearn::NoBpropVariable::deepCopy | ( | CopiesMap & | copies | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
NoBpropVariable * PLearn::NoBpropVariable::deepCopy | ( | CopiesMap & | copies | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 59 of file var/NoBpropVariable.cc.
void PLearn::NoBpropVariable::fprop | ( | ) | [virtual] |
Nothing to do by default.
Reimplemented from PLearn::UnaryVariable.
Definition at line 98 of file var/NoBpropVariable.cc.
References PLearn::UnaryVariable::input, and PLearn::Variable::valuedata.
virtual void PLearn::NoBpropVariable::fprop | ( | ) | [virtual] |
Nothing to do by default.
Reimplemented from PLearn::UnaryVariable.
virtual OptionList& PLearn::NoBpropVariable::getOptionList | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
OptionList & PLearn::NoBpropVariable::getOptionList | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 59 of file var/NoBpropVariable.cc.
virtual OptionMap& PLearn::NoBpropVariable::getOptionMap | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
OptionMap & PLearn::NoBpropVariable::getOptionMap | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 59 of file var/NoBpropVariable.cc.
RemoteMethodMap & PLearn::NoBpropVariable::getRemoteMethodMap | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 59 of file var/NoBpropVariable.cc.
virtual RemoteMethodMap& PLearn::NoBpropVariable::getRemoteMethodMap | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
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 89 of file var/NoBpropVariable.cc.
References PLearn::UnaryVariable::input, PLearn::Var::length(), and PLearn::Var::width().
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.
static StaticInitializer PLearn::NoBpropVariable::_static_initializer_ [static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 75 of file var/NoBpropVariable.h.
Definition at line 66 of file learners_experimental/NoBpropVariable.h.
Definition at line 66 of file var/NoBpropVariable.h.
Referenced by bprop(), and declareOptions().