Detailed Description
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) |
Function Documentation
◆ SCIPincludeBanditvtableUcb()
SCIP_RETCODE SCIPincludeBanditvtableUcb | ( | SCIP * | scip | ) |
include virtual function table for UCB bandit algorithms
- Parameters
-
scip SCIP data structure
Definition at line 355 of file bandit_ucb.c.
References BANDIT_NAME, NULL, SCIP_CALL, SCIP_OKAY, and SCIPincludeBanditvtable().
Referenced by SCIPincludeCorePlugins().
◆ SCIP_DECL_BANDITFREE()
SCIP_DECL_BANDITFREE | ( | SCIPbanditFreeUcb | ) |
callback to free bandit specific data structures
Definition at line 116 of file bandit_ucb.c.
References BMSfreeBlockMemory, BMSfreeBlockMemoryArray, NULL, SCIP_OKAY, SCIPbanditGetData(), SCIPbanditGetNActions(), and SCIPbanditSetData().
◆ SCIP_DECL_BANDITSELECT()
SCIP_DECL_BANDITSELECT | ( | SCIPbanditSelectUcb | ) |
selection callback for bandit selector
Definition at line 137 of file bandit_ucb.c.
References EPSEQ, EPSGT, NULL, NUMEPS, SCIP_OKAY, SCIP_Real, SCIPbanditGetData(), SCIPbanditGetNActions(), SCIPbanditGetRandnumgen(), SCIPrandomGetReal(), and sqrt().
◆ SCIP_DECL_BANDITUPDATE()
SCIP_DECL_BANDITUPDATE | ( | SCIPbanditUpdateUcb | ) |
update callback for bandit algorithm
Definition at line 209 of file bandit_ucb.c.
References NULL, SCIP_OKAY, SCIP_Real, SCIPbanditGetData(), and SCIPbanditGetNActions().
◆ SCIP_DECL_BANDITRESET()
SCIP_DECL_BANDITRESET | ( | SCIPbanditResetUcb | ) |
reset callback for bandit algorithm
Definition at line 232 of file bandit_ucb.c.
References dataReset(), NULL, SCIP_CALL, SCIP_OKAY, SCIPbanditGetData(), and SCIPbanditGetNActions().
◆ SCIPbanditCreateUcb()
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
- Parameters
-
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 296 of file bandit_ucb.c.
References BMSallocBlockMemory, BMSallocBlockMemoryArray, NULL, SCIP_ALLOC, SCIP_CALL, SCIP_INVALIDDATA, SCIP_OKAY, SCIPbanditCreate(), and SCIPerrorMessage.
Referenced by SCIPcreateBanditUcb().