Exploiting Subjectivity Classification to Improve Information Extraction.
Ellen RiloffJanyce WiebeWilliam PhillipsPublished in: AAAI (2005)
Keyphrases
- information extraction
- machine learning
- neural network
- precision and recall
- decision trees
- pattern classification
- classification algorithm
- image classification
- natural language processing
- feature space
- classification accuracy
- svm classifier
- automatic classification
- classification systems
- support vector
- classification scheme
- textual data
- text classification
- document classification
- classification method
- information retrieval
- classification rules
- natural language text
- classification rate
- human perception
- classification models
- classification process
- data sets
- semi structured
- machine learning methods
- named entities
- question answering
- benchmark datasets
- model selection
- feature vectors
- training set
- preprocessing
- natural language
- pattern recognition
- training data
- feature extraction