Time series discord discovery using WAT algorithm and iSAX representation.
Nguyen Dang Kim KhanhDuong Tuan AnhPublished in: SoICT (2012)
Keyphrases
- experimental evaluation
- preprocessing
- improved algorithm
- cost function
- detection algorithm
- learning algorithm
- times faster
- expectation maximization
- search space
- np hard
- dynamic programming
- real valued time series
- recognition algorithm
- optimization algorithm
- theoretical analysis
- particle swarm optimization
- computational cost
- nearest neighbor
- significant improvement
- k means
- computational complexity
- optimal solution
- matching algorithm
- similarity measure
- decision trees
- genetic algorithm
- neural network