Detailed Description
structure to store everything needed for using linear inequalities to improve upon the McCormick relaxation
Definition at line 244 of file cons_quadratic.c.
Data Fields | |
SCIP_VAR * | x |
SCIP_VAR * | y |
SCIP_Real | inequnderest [6] |
SCIP_Real | ineqoverest [6] |
SCIP_Real | maxnonconvexity |
int | ninequnderest |
int | nineqoverest |
int | nunderest |
int | noverest |
SCIP_Real | lastimprfac |
Field Documentation
◆ x
SCIP_VAR* BilinearEstimator::x |
first variable
Definition at line 246 of file cons_quadratic.c.
Referenced by generateCutNonConvex(), registerBranchingCandidatesGap(), and SCIPaddBilinearIneqQuadratic().
◆ y
SCIP_VAR* BilinearEstimator::y |
second variable
Definition at line 247 of file cons_quadratic.c.
Referenced by generateCutNonConvex(), registerBranchingCandidatesGap(), and SCIPaddBilinearIneqQuadratic().
◆ inequnderest
SCIP_Real BilinearEstimator::inequnderest[6] |
at most two inequalities that can be used to underestimate xy; stored as (xcoef,ycoef,constant) with xcoef x <= ycoef y + constant
Definition at line 248 of file cons_quadratic.c.
Referenced by generateCutNonConvex(), and SCIPaddBilinearIneqQuadratic().
◆ ineqoverest
SCIP_Real BilinearEstimator::ineqoverest[6] |
at most two inequalities that can be used to overestimate xy; stored as (xcoef,ycoef,constant) with xcoef x <= ycoef y + constant
Definition at line 249 of file cons_quadratic.c.
Referenced by generateCutNonConvex(), and SCIPaddBilinearIneqQuadratic().
◆ maxnonconvexity
SCIP_Real BilinearEstimator::maxnonconvexity |
estimate on largest absolute value of nonconvex eigenvalues of all quadratic constraint containing xy
Definition at line 250 of file cons_quadratic.c.
◆ ninequnderest
int BilinearEstimator::ninequnderest |
total number of inequalities for underestimating xy
Definition at line 251 of file cons_quadratic.c.
Referenced by generateCutNonConvex(), and SCIPaddBilinearIneqQuadratic().
◆ nineqoverest
int BilinearEstimator::nineqoverest |
total number of inequalities for overestimating xy
Definition at line 252 of file cons_quadratic.c.
Referenced by generateCutNonConvex(), and SCIPaddBilinearIneqQuadratic().
◆ nunderest
int BilinearEstimator::nunderest |
number of constraints that require to underestimate xy
Definition at line 253 of file cons_quadratic.c.
◆ noverest
int BilinearEstimator::noverest |
number of constraints that require to overestimate xy
Definition at line 254 of file cons_quadratic.c.
◆ lastimprfac
SCIP_Real BilinearEstimator::lastimprfac |
last achieved improvement factor
Definition at line 256 of file cons_quadratic.c.
Referenced by generateCutNonConvex(), and registerBranchingCandidatesGap().