Exploring the characteristics of opinion expressions for political opinion classification.
Bei YuStefan KaufmannDaniel DiermeierPublished in: DG.O (2008)
Keyphrases
- public opinion
- classification scheme
- classification accuracy
- classification systems
- polarity classification
- sentiment analysis
- supervised classification
- positive or negative
- decision trees
- feature selection
- support vector
- feature extraction
- classification models
- pattern classification
- support vector machine svm
- opinion retrieval
- image classification
- decision rules
- class labels
- training samples
- machine learning
- supervised learning
- multi class
- social media
- training data
- natural language
- preprocessing
- learning algorithm
- social networks
- pattern recognition
- classification rate
- object classification
- neural network
- document classification
- association rules
- facial expressions
- cross validation
- feature set