Dealing with Data Sparsity in Drug Named Entity Recognition.
Dimitrios PiliourasIoannis KorkontzelosAndrew W. DowseySophia AnaniadouPublished in: ICHI (2013)
Keyphrases
- named entity recognition
- data sparsity
- collaborative filtering
- information extraction
- named entities
- natural language processing
- matrix factorization
- maximum entropy
- semi supervised
- recommender systems
- text summarization
- conditional random fields
- transfer learning
- cold start problem
- relation extraction
- annotated corpus
- maximum entropy classifier
- classifier ensemble
- co occurrence
- question answering
- graphical models
- text mining
- prior knowledge
- user ratings
- training data
- named entity recognizer