Keyphrases
- lower bound
- upper bound
- image compression
- sparse representation
- data compression
- compression ratio
- compression algorithm
- optimal solution
- compression scheme
- branch and bound algorithm
- worst case
- lower and upper bounds
- upper and lower bounds
- information entropy
- lower bounding
- information theoretic
- branch and bound
- np hard
- information theory
- objective function
- vc dimension
- randomly generated problems
- special case
- lossless compression
- lossless coding