Extracting Opinion Expressions with semi-Markov Conditional Random Fields.
Bishan YangClaire CardiePublished in: EMNLP-CoNLL (2012)
Keyphrases
- semi markov
- conditional random fields
- graphical models
- hidden markov models
- pairwise
- probabilistic model
- information extraction
- markov random field
- random fields
- crf model
- maximum entropy
- higher order
- generative model
- markov models
- natural language
- sequence labeling
- named entity recognition
- parameter learning
- loopy belief propagation
- structured prediction
- image labeling
- undirected graphical models
- contextual features
- structured learning
- markov networks
- approximate inference