Prague Dependency Treebank: Restoration of Deletions

The use of the treebank as a resource for linguistic research has led us to look for an annotation scheme representing not only surface syntactic information (in ‘analytic trees’, ATS) but also the underlying syntactic structure of sentences and at least some aspects of intersentential links (in ‘tectogrammatical tree structures’, TGTS). We focus in this paper on some of the issues of the transduction of ATSs into TGTSs. 1 Two steps of syntactic tagging in PDT In the Prague Dependency Treebank (PDT) project, the structure of sentences is made explicit by means of two steps of syntactic tagging resulting in: (i) ‘analytic’ tree structures (ATSs), in which every word form and punctuation mark is represented as a node of the tree, and the edges of the tree correspond to (surface) syntactic dependency relations; and, (ii) tectogrammatical tree structures (TGTSs) corresponding to underlying sentence representations and having the shape of dependency trees with the verb as the ro...

• Type: Conference
• Year: 1999
• Where: TSD
• Authors: Eva Hajicová, Ivana Kruijff-Korbayová, Petr Sgall
• Keywords: Signal Processing, Syntactic Dependency Relations, Syntactic Information, Tree Structures, TSD 1999