Investor sentiment identification based on the universum SVM.
Wen LongYe-ran TangYing-jie TianPublished in: Neural Comput. Appl. (2018)
Keyphrases
- unbalanced data
- binary classification
- maximum margin
- support vector
- semi supervised learning
- support vector machine
- multi class classification
- multi class
- hyperplane
- support vector machine svm
- training data
- learning problems
- multi label
- single class
- cost sensitive
- svm classifier
- misclassification costs
- learning algorithm
- semi definite programming
- knn
- labeled data
- class distribution
- ensemble methods
- pattern classification
- generalization error
- multi task
- generalization ability
- markov networks
- text categorization
- classification accuracy
- standard svm
- kernel function
- prediction accuracy