Class to do probed diving in the tree. More...
#include <BonDiver.hpp>
Public Member Functions | |
| CbcProbedDiver () | |
| Default constructor. More... | |
| CbcProbedDiver (const CbcProbedDiver &rhs) | |
| Copy constructor. More... | |
| CbcProbedDiver & | operator= (const CbcProbedDiver &rhs) |
| Assignment operator. More... | |
| virtual | ~CbcProbedDiver () |
| Destructor. More... | |
| virtual CbcTree * | clone () const |
| Virtual copy constructor. More... | |
| virtual void | cleanTree (CbcModel *model, double cutoff, double &bestPossibleObjective) |
| Prune the tree using an objective function cutoff. More... | |
| virtual double | getBestPossibleObjective () |
| Get best possible objective function in the tree. More... | |
| virtual void | endSearch () |
| Don't know what this is yet? More... | |
| void | initialize (BabSetupBase &b) |
| Initialize the method (get options) More... | |
Heap access and maintenance methods. | |
| virtual CbcNode * | top () const |
| Return top node (next node to process.*/. More... | |
| virtual void | push (CbcNode *x) |
| Add node to the heap. More... | |
| virtual void | pop () |
| Remove the top node of the heap. More... | |
| virtual CbcNode * | bestNode (double cutoff) |
| Remove the best node from the heap and return it. More... | |
vector methods | |
| virtual bool | empty () |
| Test if empty. More... | |
| virtual int | size () |
| Give size of the tree. More... | |
Private Attributes | |
| bool | treeCleaning_ |
| Say if we are cleaning the tree (then only call CbcTree functions). More... | |
| CbcNode * | nextOnBranch_ |
| Next node on the branch. More... | |
| CbcNode * | candidateChild_ |
| Candidate child explored. More... | |
| bool | stop_diving_on_cutoff_ |
Flag indicating if we want to stop diving based on the guessed objective value and the cutoff value More... | |
Detailed Description
Class to do probed diving in the tree.
Principle is that branch-and-bound follows current branch of the tree by exploring the two children at each level and continuing the dive on the best one of the two. Untill it hits the bottom at which point it goes to the best candidate (according to CbcCompare) on the heap.
Definition at line 108 of file BonDiver.hpp.
Constructor & Destructor Documentation
| Bonmin::CbcProbedDiver::CbcProbedDiver | ( | ) |
Default constructor.
| Bonmin::CbcProbedDiver::CbcProbedDiver | ( | const CbcProbedDiver & | rhs | ) |
Copy constructor.
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virtual |
Destructor.
Member Function Documentation
| CbcProbedDiver& Bonmin::CbcProbedDiver::operator= | ( | const CbcProbedDiver & | rhs | ) |
Assignment operator.
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virtual |
Virtual copy constructor.
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virtual |
Return top node (next node to process.*/.
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virtual |
Add node to the heap.
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virtual |
Remove the top node of the heap.
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virtual |
Remove the best node from the heap and return it.
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virtual |
Test if empty.
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inlinevirtual |
Give size of the tree.
Definition at line 144 of file BonDiver.hpp.
References candidateChild_, and nextOnBranch_.
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virtual |
Prune the tree using an objective function cutoff.
This routine removes all nodes with objective worst than the specified cutoff value. It also sets bestPossibleObjective to best of all on tree before deleting.
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virtual |
Get best possible objective function in the tree.
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inlinevirtual |
| void Bonmin::CbcProbedDiver::initialize | ( | BabSetupBase & | b | ) |
Initialize the method (get options)
Member Data Documentation
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private |
Say if we are cleaning the tree (then only call CbcTree functions).
Definition at line 174 of file BonDiver.hpp.
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private |
Next node on the branch.
Definition at line 176 of file BonDiver.hpp.
Referenced by endSearch(), and size().
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private |
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private |
Flag indicating if we want to stop diving based on the guessed
objective value and the cutoff value
Definition at line 181 of file BonDiver.hpp.
The documentation for this class was generated from the following file:
