#include <SubMatVariable.h>
Inheritance diagram for PLearn::SubMatVariable:
Public Member Functions | |
| SubMatVariable () | |
| Default constructor for persistence. | |
| SubMatVariable (Variable *v, int i, int j, int the_length, int the_width) | |
| PLEARN_DECLARE_OBJECT (SubMatVariable) | |
| virtual void | build () |
| Should call simply inherited::build(), then this class's build_(). | |
| 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 | 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 | |
| void | declareOptions (OptionList &ol) |
| redefine this in subclasses: call declareOption(...) for each option, and then call inherited::declareOptions(options) ( see the declareOption function further down) | |
Protected Attributes | |
| int | startk |
| int | length_ |
| int | width_ |
| int | i_ |
| int | j_ |
Private Types | |
| typedef UnaryVariable | inherited |
Private Member Functions | |
| void | build_ () |
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Reimplemented from PLearn::UnaryVariable. Definition at line 56 of file SubMatVariable.h. Referenced by SubMatVariable(). |
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Default constructor for persistence.
Definition at line 67 of file SubMatVariable.h. References startk. |
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Definition at line 57 of file SubMatVariable.cc. |
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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 142 of file SubMatVariable.cc. References k, PLearn::Variable::length(), PLearn::Var::length(), PLearn::Variable::nelems(), startk, PLearn::Var::width(), and PLearn::Variable::width(). |
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Implements PLearn::Variable. Definition at line 120 of file SubMatVariable.cc. References k, PLearn::Variable::length(), PLearn::Variable::nelems(), startk, PLearn::Var::width(), and PLearn::Variable::width(). |
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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::Variable. Definition at line 68 of file SubMatVariable.cc. References build_(). |
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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 it's parent's build_ has already been called. Reimplemented from PLearn::Variable. Definition at line 74 of file SubMatVariable.cc. References i_, j_, PLearn::Var::length(), PLERROR, startk, and PLearn::Var::width(). Referenced by build(), and SubMatVariable(). |
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redefine this in subclasses: call declareOption(...) for each option, and then call inherited::declareOptions(options) ( see the declareOption function further down) ex: static void declareOptions(OptionList& ol) { declareOption(ol, "inputsize", &MyObject::inputsize_, OptionBase::buildoption, "the size of the input\n it must be provided"); declareOption(ol, "weights", &MyObject::weights, OptionBase::learntoption, "the learnt model weights"); inherited::declareOptions(ol); } Reimplemented from PLearn::UnaryVariable. Definition at line 85 of file SubMatVariable.cc. References PLearn::declareOption(), and PLearn::OptionList. |
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compute output given input
Implements PLearn::Variable. Definition at line 98 of file SubMatVariable.cc. References k, PLearn::Variable::length(), PLearn::Variable::nelems(), startk, PLearn::Var::width(), and PLearn::Variable::width(). |
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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 95 of file SubMatVariable.cc. |
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Reimplemented from PLearn::Variable. Definition at line 178 of file SubMatVariable.cc. References k, PLearn::Variable::length(), PLearn::TVec< T >::length(), PLearn::Variable::nelems(), PLearn::UnaryVariable::resizeRValue(), startk, PLearn::Var::width(), and PLearn::Variable::width(). |
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compute a piece of new Var graph that represents the symbolic derivative of this Var
Reimplemented from PLearn::Variable. Definition at line 166 of file SubMatVariable.cc. References PLearn::extend(), PLearn::Variable::length(), PLearn::Var::length(), startk, PLearn::Variable::width(), and PLearn::Var::width(). |
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Definition at line 62 of file SubMatVariable.h. Referenced by build_(). |
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Definition at line 62 of file SubMatVariable.h. Referenced by build_(). |
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Definition at line 61 of file SubMatVariable.h. Referenced by recomputeSize(). |
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Definition at line 60 of file SubMatVariable.h. Referenced by bbprop(), bprop(), build_(), fprop(), rfprop(), SubMatVariable(), and symbolicBprop(). |
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Definition at line 61 of file SubMatVariable.h. Referenced by recomputeSize(). |
1.3.7