Data-oriented Parsing - Wikipedia, The Free Encyclopedia
Data-oriented parsing uses every subtree
Data-oriented parsing (DOP, also data-oriented processing) is a probabilistic grammar formalism in computational linguistics. DOP was conceived by Remko Scha in 1990 with the aim of developing a performance-oriented grammar framework. Unlike other probabilistic formalisms, DOP takes into account all subtrees contained in a treebank rather than being restricted to, for example, 2-level subtrees (like PCFGs).