A novel hybrid system for feature selection based on an improved gravitational search algorithm and k-NN method.
Jie XiangXiaoHong HanFu DuanYan QiangXiaoyan XiongYuan LanHaishui ChaiPublished in: Appl. Soft Comput. (2015)
Keyphrases
- knn
- feature selection
- text categorization
- k nearest neighbor
- distance function
- nearest neighbor
- objective function
- gravitational search algorithm
- stability analysis
- feature set
- dimensionality reduction
- model selection
- artificial neural networks
- k nearest neighbour
- mutual information
- classification accuracy
- training set
- convergence rate
- feature extraction
- neural network