Cascaded Classifiers for Confidence-Based Chemical Named Entity Recognition.
Peter T. CorbettAnn A. CopestakePublished in: BioNLP (2008)
Keyphrases
- named entity recognition
- classifier ensemble
- named entities
- information extraction
- natural language processing
- maximum entropy
- text summarization
- semi supervised
- conditional random fields
- relation extraction
- annotated corpus
- sequence labeling
- training data
- maximum entropy classifier
- decision trees
- ensemble learning
- feature set
- classification algorithm
- information retrieval
- reinforcement learning
- question answering
- knowledge representation
- training set
- image segmentation
- artificial intelligence
- training samples
- higher order
- co occurrence
- text mining
- feature selection
- proper names