Scippy

SCIP

Solving Constraint Integer Programs

branch_inference.h
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1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
2 /* */
3 /* This file is part of the program and library */
4 /* SCIP --- Solving Constraint Integer Programs */
5 /* */
6 /* Copyright (c) 2002-2024 Zuse Institute Berlin (ZIB) */
7 /* */
8 /* Licensed under the Apache License, Version 2.0 (the "License"); */
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21 /* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
22 /* */
23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24 
25 /**@file branch_inference.h
26  * @ingroup BRANCHINGRULES
27  * @brief inference history branching rule
28  * @author Tobias Achterberg
29  * @author Timo Berthold
30  * @author Stefan Heinz
31  *
32  * The inference history branching rule is based on the average number of deductions obtained after
33  * branching this variable upwards and downwards.
34  * Variables which cause many problem reductions are preferred since they are more likely to drive
35  * the created sub-tree towards infeasibility.
36  * Inference history of the variables is updated during the branch-and-bound search.
37  *
38  * For a more detailed description and a comparison between the inference rule and other branching rules
39  * in SCIP, we refer to
40  *
41  * @par
42  * Tobias Achterberg@n
43  * Constraint Integer Programming@n
44  * PhD Thesis, Technische Universit├Ąt Berlin, 2007@n
45  *
46 
47  */
48 
49 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
50 
51 #ifndef __SCIP_BRANCH_INFERENCE_H__
52 #define __SCIP_BRANCH_INFERENCE_H__
53 
54 
55 #include "scip/def.h"
56 #include "scip/type_retcode.h"
57 #include "scip/type_scip.h"
58 
59 #ifdef __cplusplus
60 extern "C" {
61 #endif
62 
63 /** creates the inference history branching rule and includes it in SCIP
64  *
65  * @ingroup BranchingRuleIncludes
66  */
67 SCIP_EXPORT
69  SCIP* scip /**< SCIP data structure */
70  );
71 
72 #ifdef __cplusplus
73 }
74 #endif
75 
76 #endif
SCIP_RETCODE SCIPincludeBranchruleInference(SCIP *scip)
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:63
type definitions for return codes for SCIP methods
type definitions for SCIP&#39;s main datastructure
common defines and data types used in all packages of SCIP