Link2Tree
Description
Link2Tree is a Prolog program developed as a Lizentiantsarbeit (master's thesis) in Computational Linguistics. Link2Tree converts dependency-based link structures as delivered by the Link Grammar parser used in ExtrAns into constituency-based structures.
Manual
Höfler, Stefan (2002). Link2Tree: A Dependency-Constituency Converter. Licentiate thesis, Faculty of Arts, University of Zurich.
Requirements
Link2Tree is written in Prolog applying the conventions of
- SICStus Prolog 3.8.
The Program is designed to work in interaction with
- ExtrAns 1.7
- LinkGrammar 4.1
Download
Download the Link2Tree source files and documentation here:
The installation is described in appendix A of the manual, pp. 107-108.
Rule Sets
This version of Link2Tree comes along with the following rule sets. Their usage is described in appendix B of the manual, pp. 109ff.
- linkfeatures_basic.pl
- standard: complete
- linkfeatures_basic_corr.pl
- correction of link types violating structural constraints: cf. manual section 14.2
- incomplete samples
-
linkfeatures_gb.pl
- Government & Binding-like output
- incomplete samples
Note
Link2Tree was developed in 2002 to work together with LinkGrammar 4.1. Link2Tree will not be updated, and we cannot offer any support for it anymore.