Development of Reliable and Stable QL1-NMF Algorithm for Analyzing Environmental ELF Magnetic Signals.
Motoaki MouriIchi TakumiHiroshi YasukawaPublished in: IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. (2018)
Keyphrases
- preprocessing
- experimental evaluation
- times faster
- learning algorithm
- np hard
- objective function
- cost function
- high accuracy
- worst case
- nonnegative matrix factorization
- negative matrix factorization
- magnetic field
- data clustering
- detection algorithm
- particle swarm optimization
- query language
- computational cost
- dynamic programming
- k means
- search space
- optimal solution
- input data
- probabilistic model
- clustering method
- matching algorithm
- iterative algorithms
- low rank approximation