New Lower Bound for the Optimal Ball Packing Density in Hyperbolic 4-Space.
Robert Thijs KozmaJeno SzirmaiPublished in: Discret. Comput. Geom. (2015)
Keyphrases
- lower bound
- worst case
- upper bound
- optimal solution
- branch and bound algorithm
- optimal cost
- competitive ratio
- dynamic programming
- neural network
- low dimensional
- multi dimensional scaling
- branch and bound
- vision system
- search space
- constant factor
- np hard
- special case
- feature space
- exhaustive search
- optimal strategy
- lower and upper bounds
- lower bounding
- data structure
- probability measure
- objective function
- learning algorithm