Improving the Performance of a Named Entity Recognition System with Knowledge Acquisition.
Myung Hee KimPaul ComptonPublished in: EKAW (2012)
Keyphrases
- named entities
- knowledge acquisition
- named entity recognition
- information extraction
- co occurrence
- named entity extraction
- text mining
- relation extraction
- natural language processing
- question answering
- linguistic features
- annotated corpus
- expert systems
- knowledge base
- noun phrases
- unsupervised learning
- feature extraction
- databases
- machine learning
- knowledge representation
- weakly supervised
- global context
- person names
- conditional random fields
- visual features
- markov random field
- learning algorithm