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What is the difference between backtracking and branch and bound strategy?
Wiki User
∙ 13y ago
[1] It is used to find all possible solutions available to the problem.
[2] It traverse tree by DFS(Depth First Search).
[3] It realizes that it has made a bad choice & undoes the last choice by backing up.
[4] It search the state space tree until it found a solution.
[5] It involves feasibility function.
Branch-and-Bound (BB)[1] It is used to solve optimization problem.
[2] It may traverse the tree in any manner, DFS or BFS.
[3] It realizes that it already has a better optimal solution that the pre-solution leads to so it abandons that pre-solution.
[4] It completely searches the state space tree to get optimal solution.
[5] It involves bounding function.
Wiki User
∙ 13y ago
Backtracking is a method used to find solutions through trial and error by checking different paths and backtracking when a solution is not found. Branch and Bound is a strategy that systematically divides the solution space into branches, Prunes those branches that cannot possibly contain the optimal solution, and continues to search for the best solution. In summary, backtracking is more brute-force, while branch and bound is more systematic and efficient in finding optimal solutions.
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