On the Derivation Perplexity of Treebanks

Proceedings of the Ninth International Workshop
\non Treebanks and Linguistic Theories.
\nEditors: Markus Dickinson, Kaili Müürisep and Marco Passarotti.
\nNEALT Proceedings Series, Vol. 9 (2010), 223-232.
\n© 2010 The editors and contributors.
\nPublished by
\nNorthern European Association for Language
\nTechnology (NEALT)
\nhttp://omilia.uio.no/nealt.
\nElectronically published at
\nTartu University Library (Estonia)
\nhttp://hdl.handle.net/10062/15891.