Pythagorean fuzzy time series model based on Pythagorean fuzzy c-means and improved Markov weighted in the prediction of the new COVID-19 cases.
Sidong XianYue ChengPublished in: Soft Comput. (2021)
Keyphrases
- possibilistic c means
- fuzzy c means
- fuzzy clustering
- fcm algorithm
- membership functions
- fuzzy c means clustering
- possibilistic clustering
- fuzzy clustering algorithm
- clustering algorithm
- membership values
- fuzzy clustering algorithms
- fuzzy clustering method
- cluster validity
- hard c means
- image segmentation
- gustafson kessel
- fuzzy c means algorithm
- fuzzy partitions
- clustering method
- cluster validity index
- fuzzy membership
- fuzzy sets
- k means
- fuzzy c means clustering algorithm
- fuzzy modeling
- fuzzy rules
- feature selection
- fuzzy inference system
- euclidean distance
- rough sets
- multi objective
- cluster validity indices