Dependency Trees: Difference between revisions
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== | == Dependency Tree == | ||
A dependency tree is a rooted directed tree with a defined linear ordering of its nodes. The nodes correspond to words in a sentence (in a [[Constituency_Trees|constituency tree]], they could be either nonterminals or words) and the directed edges mark ''dependency relations'' between nodes. | |||
In most linguistic theories, verbs control their arguments. Therefore, e.g. the subject of a sentence will typically depend on the predicate. Modifiers of the subject (such as adjectives) will depend on the subject node and so on. | |||
== Non-Projectivity == | |||
== See Also == | |||
[http://ufal.mff.cuni.cz/~lopatkova/2015/docs/1-intro-trees.pdf Introduction to constituency and dependency trees] | |||
Revision as of 14:06, 7 August 2015
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{{#ev:youtube|https://www.youtube.com/watch?v=xauhVtfXbDQ&index=11&list=PLpiLOsNLsfmbeH-b865BwfH15W0sat02V%7C800%7Ccenter}}
Dependency Tree
A dependency tree is a rooted directed tree with a defined linear ordering of its nodes. The nodes correspond to words in a sentence (in a constituency tree, they could be either nonterminals or words) and the directed edges mark dependency relations between nodes.
In most linguistic theories, verbs control their arguments. Therefore, e.g. the subject of a sentence will typically depend on the predicate. Modifiers of the subject (such as adjectives) will depend on the subject node and so on.