PLearn 0.1
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#include <PDistributionVariable.h>
Public Types | |
typedef UnaryVariable | inherited |
Public Member Functions | |
PDistributionVariable () | |
Default constructor for persistence. | |
PDistributionVariable (Variable *no_noise_var, PP< PDistribution > this_dist) | |
virtual string | classname () const |
virtual OptionList & | getOptionList () const |
virtual OptionMap & | getOptionMap () const |
virtual RemoteMethodMap & | getRemoteMethodMap () const |
virtual PDistributionVariable * | deepCopy (CopiesMap &copies) const |
virtual void | build () |
Post-constructor. | |
virtual void | makeDeepCopyFromShallowCopy (CopiesMap &copies) |
Does the necessary operations to transform a shallow copy (this) into a deep copy by deep-copying all the members that need to be. | |
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. | |
virtual void | bbprop () |
compute an approximation to diag(d^2/dinput^2) given diag(d^2/doutput^2), with diag(d^2/dinput^2) ~=~ (doutput/dinput)' diag(d^2/doutput^2) (doutput/dinput) In particular: if 'C' depends on 'y' and 'y' depends on x ... | |
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_ () |
PDistributionVariable. | |
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 () |
Public Attributes | |
PP< PDistribution > | dist |
Static Public Attributes | |
static StaticInitializer | _static_initializer_ |
Static Protected Member Functions | |
static void | declareOptions (OptionList &ol) |
Declare options (data fields) for the class. | |
Private Member Functions | |
void | build_ () |
Object-specific post-constructor. |
Definition at line 53 of file PDistributionVariable.h.
Reimplemented from PLearn::UnaryVariable.
Definition at line 56 of file PDistributionVariable.h.
PLearn::PDistributionVariable::PDistributionVariable | ( | ) | [inline] |
PLearn::PDistributionVariable::PDistributionVariable | ( | Variable * | no_noise_var, |
PP< PDistribution > | this_dist | ||
) |
Definition at line 56 of file PDistributionVariable.cc.
string PLearn::PDistributionVariable::_classname_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 54 of file PDistributionVariable.cc.
OptionList & PLearn::PDistributionVariable::_getOptionList_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 54 of file PDistributionVariable.cc.
RemoteMethodMap & PLearn::PDistributionVariable::_getRemoteMethodMap_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 54 of file PDistributionVariable.cc.
Reimplemented from PLearn::UnaryVariable.
Definition at line 54 of file PDistributionVariable.cc.
Object * PLearn::PDistributionVariable::_new_instance_for_typemap_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 54 of file PDistributionVariable.cc.
StaticInitializer PDistributionVariable::_static_initializer_ & PLearn::PDistributionVariable::_static_initialize_ | ( | ) | [static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 54 of file PDistributionVariable.cc.
void PLearn::PDistributionVariable::bbprop | ( | ) | [virtual] |
compute an approximation to diag(d^2/dinput^2) given diag(d^2/doutput^2), with diag(d^2/dinput^2) ~=~ (doutput/dinput)' diag(d^2/doutput^2) (doutput/dinput) In particular: if 'C' depends on 'y' and 'y' depends on x ...
d^2C/dx^2 = d^2C/dy^2 * (dy/dx)^2 + dC/dy * d^2y/dx^2 (diaghessian) (gradient)
Reimplemented from PLearn::Variable.
Definition at line 108 of file PDistributionVariable.cc.
{} // No input: nothing to bbprop
void PLearn::PDistributionVariable::bprop | ( | ) | [virtual] |
Nothing to do by default.
Reimplemented from PLearn::UnaryVariable.
Definition at line 106 of file PDistributionVariable.cc.
{} // No input: nothing to bprop
void PLearn::PDistributionVariable::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 83 of file PDistributionVariable.cc.
References PLearn::UnaryVariable::build(), and build_().
{ inherited::build(); build_(); }
void PLearn::PDistributionVariable::build_ | ( | ) | [private] |
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 89 of file PDistributionVariable.cc.
References dist.
Referenced by build().
{ dist->train(); }
string PLearn::PDistributionVariable::classname | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 54 of file PDistributionVariable.cc.
void PLearn::PDistributionVariable::declareOptions | ( | OptionList & | ol | ) | [static, protected] |
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 72 of file PDistributionVariable.cc.
References PLearn::OptionBase::buildoption, PLearn::declareOption(), PLearn::UnaryVariable::declareOptions(), and dist.
{ declareOption(ol, "dist", &PDistributionVariable::dist, OptionBase::buildoption, "PDistribution source of the variable.\n"); inherited::declareOptions(ol); }
static const PPath& PLearn::PDistributionVariable::declaringFile | ( | ) | [inline, static] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 70 of file PDistributionVariable.h.
PDistributionVariable * PLearn::PDistributionVariable::deepCopy | ( | CopiesMap & | copies | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 54 of file PDistributionVariable.cc.
void PLearn::PDistributionVariable::fprop | ( | ) | [virtual] |
Nothing to do by default.
Reimplemented from PLearn::UnaryVariable.
Definition at line 101 of file PDistributionVariable.cc.
References dist, and PLearn::Variable::value.
OptionList & PLearn::PDistributionVariable::getOptionList | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 54 of file PDistributionVariable.cc.
OptionMap & PLearn::PDistributionVariable::getOptionMap | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 54 of file PDistributionVariable.cc.
RemoteMethodMap & PLearn::PDistributionVariable::getRemoteMethodMap | ( | ) | const [virtual] |
Reimplemented from PLearn::UnaryVariable.
Definition at line 54 of file PDistributionVariable.cc.
void PLearn::PDistributionVariable::makeDeepCopyFromShallowCopy | ( | CopiesMap & | copies | ) | [virtual] |
Does the necessary operations to transform a shallow copy (this) into a deep copy by deep-copying all the members that need to be.
This needs to be overridden by every class that adds "complex" data members to the class, such as Vec
, Mat
, PP<Something>
, etc. Typical implementation:
void CLASS_OF_THIS::makeDeepCopyFromShallowCopy(CopiesMap& copies) { inherited::makeDeepCopyFromShallowCopy(copies); deepCopyField(complex_data_member1, copies); deepCopyField(complex_data_member2, copies); ... }
copies | A map used by the deep-copy mechanism to keep track of already-copied objects. |
Reimplemented from PLearn::UnaryVariable.
Definition at line 94 of file PDistributionVariable.cc.
References PLearn::deepCopyField(), dist, and PLearn::UnaryVariable::makeDeepCopyFromShallowCopy().
{ inherited::makeDeepCopyFromShallowCopy(copies); deepCopyField(dist, copies); }
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 60 of file PDistributionVariable.cc.
References PLearn::UnaryVariable::input, PLearn::Var::length(), and PLearn::Var::width().
void PLearn::PDistributionVariable::rfprop | ( | ) | [virtual] |
Reimplemented from PLearn::Variable.
Definition at line 109 of file PDistributionVariable.cc.
References PLERROR.
{ PLERROR("In PDistributionVariable::rfbprop() : Not implemented");}
void PLearn::PDistributionVariable::symbolicBprop | ( | ) | [virtual] |
compute a piece of new Var graph that represents the symbolic derivative of this Var
Reimplemented from PLearn::Variable.
Definition at line 110 of file PDistributionVariable.cc.
{} // No input: nothing to bprop
Reimplemented from PLearn::UnaryVariable.
Definition at line 70 of file PDistributionVariable.h.
Definition at line 57 of file PDistributionVariable.h.
Referenced by build_(), declareOptions(), fprop(), and makeDeepCopyFromShallowCopy().