English Parsers: Some Information based observations (original) (raw)

Last decade has seen introduction of several parsers for English ranging from rule based to statistical based. In recent years there is also a growing trend towards producing dependency output in addition to the constituency trees. The dependency format is pre ferred over the constituency not only from evaluation point of view but also because of its suitability for a wide range of NLP tasks. However there is no consensus among the dependency parser developers on the number of dependency relations and names of these relations.