A Feature Extraction and Expansion-Based Approach for Question Target Identification and Classification.
Wenxiu XieDongfa GaoTianyong HaoPublished in: CCIR (2017)
Keyphrases
- feature extraction
- pattern classification
- support vector machine svm
- image classification
- feature vectors
- pattern recognition
- feature space
- classification accuracy
- feature set
- feature selection
- extracted features
- automatic classification
- dimension reduction
- preprocessing
- classification scheme
- text classification
- decision trees
- feature extraction and classification
- image processing
- machine learning
- feature representation
- classification models
- classification algorithm
- face recognition
- support vector
- kernel principal component analysis
- classification systems
- principle component analysis
- fisher linear discriminant
- classification rate
- cost sensitive
- discriminant analysis
- class labels
- frequency domain
- dimensionality reduction