Solver_NU Class Reference

Inheritance diagram for Solver_NU:

Public Member Functions
	Solver_NU ()=default
void	Solve (int my_l, const QMatrix &my_Q, const double *my_p, const schar *my_y, double *my_alpha, double my_Cp, double my_Cn, double my_eps, SolutionInfo *my_si, int my_shrinking)
Public Member Functions inherited from Solver
	Solver ()=default
virtual	~Solver ()=default
void	Solve (int l, const QMatrix &Q, const double *p_, const schar *y_, double *alpha_, double Cp, double Cn, double eps, SolutionInfo *si, int shrinking)

Private Member Functions
int	select_working_set (int &i, int &j) override
double	calculate_rho () override
bool	be_shrunk (int i, double Gmax1, double Gmax2, double Gmax3, double Gmax4)
void	do_shrinking () override

Private Attributes
SolutionInfo *	si

Additional Inherited Members
Protected Types inherited from Solver
enum	{ LOWER_BOUND, UPPER_BOUND, FREE }
Protected Member Functions inherited from Solver
double	get_C (int i)
void	update_alpha_status (int i)
bool	is_upper_bound (int i)
bool	is_lower_bound (int i)
bool	is_free (int i)
void	swap_index (int i, int j)
void	reconstruct_gradient ()
Protected Attributes inherited from Solver
int	active_size
schar *	y
double *	G
char *	alpha_status
double *	alpha
const QMatrix *	Q
const double *	QD
double	eps
double	Cp
double	Cn
double *	p
int *	active_set
double *	G_bar
int	l
bool	unshrink

Constructor & Destructor Documentation

Solver_NU::Solver_NU ( )

default

Member Function Documentation

bool Solver_NU::be_shrunk ( int  i, double  Gmax1, double  Gmax2, double  Gmax3, double  Gmax4  )

private

References Solver::G, Solver::is_lower_bound(), Solver::is_upper_bound(), and Solver::y.

Referenced by do_shrinking().

double Solver_NU::calculate_rho ( )

overrideprivatevirtual

Reimplemented from Solver.

References Solver::active_size, Solver::G, INF, Solver::is_lower_bound(), Solver::is_upper_bound(), max(), min(), Solver::SolutionInfo::r, basic::options::OptionKeys::motifs::r1, basic::options::OptionKeys::motifs::r2, si, and Solver::y.

void Solver_NU::do_shrinking ( )

overrideprivatevirtual

Reimplemented from Solver.

References Solver::active_size, be_shrunk(), Solver::eps, Solver::G, INF, Solver::is_lower_bound(), Solver::is_upper_bound(), Solver::l, max(), Solver::reconstruct_gradient(), Solver::swap_index(), Solver::unshrink, and Solver::y.

int Solver_NU::select_working_set ( int &  i, int &  j  )

overrideprivatevirtual

Reimplemented from Solver.

References Solver::active_size, Solver::eps, Solver::G, QMatrix::get_Q(), basic::options::OptionKeys::in::in, INF, Solver::is_lower_bound(), Solver::is_upper_bound(), basic::options::OptionKeys::frags::j, max(), Solver::Q, Solver::QD, basic::options::OptionKeys::in::file::t, TAU, and Solver::y.

void Solver_NU::Solve ( int  my_l, const QMatrix &  my_Q, const double *  my_p, const schar *  my_y, double *  my_alpha, double  my_Cp, double  my_Cn, double  my_eps, SolutionInfo *  my_si, int  my_shrinking  )

inline

References si, and Solver::Solve().

Referenced by solve_nu_svc(), and solve_nu_svr().

Member Data Documentation

SolutionInfo* Solver_NU::si

private

Referenced by calculate_rho(), and Solve().

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The documentation for this class was generated from the following file:

• src/utility/libsvm/Svm.cc