Analyzing Transitivity Alternations with PropBank: A Linguistic Study
30 likes | 140 Vues
Explore how PropBank can facilitate the extraction of transitivity alternations in different language contexts and the challenges and advantages of using PropBank before syntactic treebanking.
Analyzing Transitivity Alternations with PropBank: A Linguistic Study
E N D
Presentation Transcript
Homework 3 Due 7/28/2011
Using PropBank 1 • Most languages have transitivity alternations i.e. verb forms that take a different number of arguments in different contexts e.g. `open’. In some languages, this change is accompanied by morphological changes in the verb stem e.g. Hindi-Urdu `khul’/`khol’ (open). Discuss how you could use PropBank to extract the Transitivity Alternations in a given language.
Using PropBank 2 • PropBanks are typically built upon existing syntactic treebanks because this simplifies the annotation task. However, this relies upon treebank constituents being the same as PropBank `constituents’. Discuss what issues (challenges/advantages) would come up if you decided to PropBank as the first step (before syntactic treebanking)?