Freely available systems[]
- ASSERT: local, SVM (Pradhan et al. 2008, Pradhan et al. 2004)
- mate-tools: local (logistic regression) + global reranking(?)
- CLEAR: transition-based (Choi & Palmer, 2011); cluster
- semaphor: ?
- SENNA: local (neural network) + global (similar to CRF); vector (word embeddings) + discrete additional features
Another list by Ken van Haren.