Exploiting Wikipedia as External Knowledge for Named Entity Recognition.
Jun'ichi KazamaKentaro TorisawaPublished in: EMNLP-CoNLL (2007)
Keyphrases
- external knowledge
- named entity recognition
- wordnet
- natural language processing
- named entities
- information extraction
- domain knowledge
- maximum entropy
- conditional random fields
- semi supervised
- text categorization
- text summarization
- document clustering
- textual information
- web directories
- knowledge sources
- semantic features
- named entity disambiguation
- knowledge base
- natural language
- co occurrence
- text mining
- prior knowledge
- pairwise