Simplicial Cone Shrinking Algorithm for Unmixing Nonnegative Sources.
Wendyam Serge Boris OuedraogoAntoine SouloumiacMeriem JaïdaneChristian JuttenPublished in: ICASSP (2012)
Keyphrases
- objective function
- improved algorithm
- recognition algorithm
- computationally efficient
- linear programming
- experimental evaluation
- high accuracy
- nonnegative matrix factorization
- times faster
- learning algorithm
- computational complexity
- cost function
- preprocessing
- significant improvement
- k means
- np hard
- dynamic programming
- expectation maximization
- detection algorithm
- convergence rate
- single source
- negative matrix factorization
- search space
- evolutionary algorithm
- matching algorithm
- non stationary
- optimization algorithm
- simulated annealing
- worst case
- image data
- computational cost