Product Named Entity Recognition Based on Hierarchical Hidden Markov Model.
Feifan LiuJun ZhaoBibo LvBo XuHao YuPublished in: SIGHAN@IJCNLP 2005 (2005)
Keyphrases
- maximum entropy classifier
- named entity recognition
- hierarchical hidden markov model
- information extraction
- hidden markov models
- named entities
- conditional random fields
- natural language processing
- maximum entropy
- semi supervised
- text summarization
- relation extraction
- annotated corpus
- classifier ensemble
- knowledge discovery
- databases
- computer vision
- text mining
- question answering
- co occurrence
- supervised learning
- pairwise
- natural language
- knowledge base
- artificial intelligence
- machine learning