Incorporating Unsupervised Features into CRF based Named Entity Recognition.
Yuki TawaraMai OmuraMirai MiuraPublished in: NTCIR (2014)
Keyphrases
- named entity recognition
- conditional random fields
- information extraction
- sequence labeling
- semi supervised
- maximum entropy classifier
- named entities
- maximum entropy
- natural language processing
- text summarization
- crf model
- feature extraction
- feature set
- relation extraction
- dependency parsing
- model selection
- databases
- co occurrence
- supervised learning
- prior knowledge
- pairwise
- image processing
- classifier ensemble
- knowledge base
- learning algorithm
- machine learning