An algorithm to check the nonnegativity of singular systems.
Alicia HerreroAntonio RamírezNéstor ThomePublished in: Appl. Math. Comput. (2007)
Keyphrases
- experimental evaluation
- detection algorithm
- theoretical analysis
- computational cost
- learning algorithm
- high accuracy
- probabilistic model
- dynamic programming
- iterative algorithms
- negative matrix factorization
- convex hull
- matching algorithm
- optimization algorithm
- np hard
- computational complexity
- k means
- search space
- cost function
- estimation algorithm
- improved algorithm
- tree structure
- optimal solution
- selection algorithm
- memory requirements
- preprocessing
- times faster
- lower bound
- mathematical model
- expert systems
- expectation maximization
- distributed systems
- significant improvement
- worst case
- management system