internal methods for UCB bandit algorithm
Definition in file bandit_ucb.h.
#include "blockmemshell/memory.h"
#include "scip/def.h"
#include "scip/type_bandit.h"
#include "scip/type_retcode.h"
#include "scip/type_scip.h"
Go to the source code of this file.
Functions | |
SCIP_RETCODE | SCIPincludeBanditvtableUcb (SCIP *scip) |
SCIP_DECL_BANDITFREE (SCIPbanditFreeUcb) | |
SCIP_DECL_BANDITSELECT (SCIPbanditSelectUcb) | |
SCIP_DECL_BANDITUPDATE (SCIPbanditUpdateUcb) | |
SCIP_DECL_BANDITRESET (SCIPbanditResetUcb) | |
SCIP_RETCODE | SCIPbanditCreateUcb (BMS_BLKMEM *blkmem, BMS_BUFMEM *bufmem, SCIP_BANDITVTABLE *vtable, SCIP_BANDIT **ucb, SCIP_Real *priorities, SCIP_Real alpha, int nactions, unsigned int initseed) |
SCIP_RETCODE SCIPincludeBanditvtableUcb | ( | SCIP * | scip | ) |
include virtual function table for UCB bandit algorithms
scip | SCIP data structure |
Definition at line 364 of file bandit_ucb.c.
References assert(), BANDIT_NAME, NULL, SCIP_CALL, SCIP_OKAY, and SCIPincludeBanditvtable().
Referenced by SCIPincludeCorePlugins().
SCIP_DECL_BANDITFREE | ( | SCIPbanditFreeUcb | ) |
callback to free bandit specific data structures
Definition at line 125 of file bandit_ucb.c.
References assert(), BMSfreeBlockMemory, BMSfreeBlockMemoryArray, NULL, SCIP_OKAY, SCIPbanditGetData(), SCIPbanditGetNActions(), and SCIPbanditSetData().
SCIP_DECL_BANDITSELECT | ( | SCIPbanditSelectUcb | ) |
selection callback for bandit selector
Definition at line 146 of file bandit_ucb.c.
References assert(), EPSEQ, EPSGT, i, LOG1P, NULL, NUMEPS, SCIP_OKAY, SCIP_Real, SCIPbanditGetData(), SCIPbanditGetNActions(), SCIPbanditGetRandnumgen(), SCIPrandomGetReal(), and selection.
SCIP_DECL_BANDITUPDATE | ( | SCIPbanditUpdateUcb | ) |
update callback for bandit algorithm
Definition at line 218 of file bandit_ucb.c.
References assert(), NULL, SCIP_OKAY, SCIP_Real, SCIPbanditGetData(), SCIPbanditGetNActions(), and selection.
SCIP_DECL_BANDITRESET | ( | SCIPbanditResetUcb | ) |
reset callback for bandit algorithm
Definition at line 241 of file bandit_ucb.c.
References assert(), dataReset(), NULL, SCIP_CALL, SCIP_OKAY, SCIPbanditGetData(), and SCIPbanditGetNActions().
SCIP_RETCODE SCIPbanditCreateUcb | ( | BMS_BLKMEM * | blkmem, |
BMS_BUFMEM * | bufmem, | ||
SCIP_BANDITVTABLE * | vtable, | ||
SCIP_BANDIT ** | ucb, | ||
SCIP_Real * | priorities, | ||
SCIP_Real | alpha, | ||
int | nactions, | ||
unsigned int | initseed ) |
internal method to create and reset UCB bandit algorithm
blkmem | block memory |
bufmem | buffer memory |
vtable | virtual function table for UCB bandit algorithm |
ucb | pointer to store bandit algorithm |
priorities | nonnegative priorities for each action, or NULL if not needed |
alpha | parameter to increase confidence width |
nactions | the positive number of actions for this bandit algorithm |
initseed | initial random seed |
Definition at line 305 of file bandit_ucb.c.
References alpha, assert(), BMSallocBlockMemory, BMSallocBlockMemoryArray, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIP_Real, SCIPbanditCreate(), and SCIPerrorMessage.
Referenced by SCIPcreateBanditUcb().