Dependency Trees: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 19: | Line 19: | ||
[http://ufal.mff.cuni.cz/~lopatkova/2015/docs/1-intro-trees.pdf Introduction to constituency and dependency trees] | [http://ufal.mff.cuni.cz/~lopatkova/2015/docs/1-intro-trees.pdf Introduction to constituency and dependency trees] | ||
[https://lindat.mff.cuni.cz/services/treex-web Online demo of Treex which includes dependency parsing for English and Czech] | |||
Revision as of 14:08, 7 August 2015
 | |
| Lecture video: |
web TODO Youtube |
|---|---|
{{#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.
Non-Projectivity
See Also
Introduction to constituency and dependency trees Online demo of Treex which includes dependency parsing for English and Czech