Keyphrases
- lower bound
- upper bound
- branch and bound
- objective function
- geometric structure
- lower and upper bounds
- np hard
- branch and bound algorithm
- geometric information
- three dimensional
- optimal solution
- quadratic assignment problem
- polynomial approximation
- worst case
- data structure
- upper and lower bounds
- geometric transformations
- rank order
- randomly generated problems
- rotationally invariant