| 1 |
Parsing Arabic using treebank-based LFG resources
|
|
|
|
In: Tounsi, Lamia, Attia, Mohammed and van Genabith, Josef orcid:0000-0003-1322-7944 (2009) Parsing Arabic using treebank-based LFG resources. In: Lexical Functional Grammar 2009, 13-16 July 2009, Cambridge, UK. (2009)
|
|
Abstract:
In this paper we present initial results on parsing Arabic using treebank-based parsers and automatic LFG f-structure annotation methodologies. The Arabic Annotation Algorithm (A3) (Tounsi et al., 2009) exploits the rich functional annotations in the Penn Arabic Treebank (ATB) (Bies and Maamouri, 2003; Maamouri and Bies, 2004) to assign LFG f-structure equations to trees. For parsing, we modify Bikel’s (2004) parser to learn ATB functional tags and merge phrasal categories with functional tags in the training data. Functional tags in parser output trees are then "unmasked" and available to A3 to assign f-structure equations. We evaluate the resulting f-structures against the DCU250 Arabic gold standard dependency bank (Al-Raheb et al., 2006). Currently we achieve a dependency f-score of 77%.
|
|
Keyword:
Arabic; lexical functional grammar; Machine translating; parsing
|
|
URL: http://doras.dcu.ie/15147/
|
|
BASE
|
|
Hide details
|
|
|
| 2 |
Automatic treebank-based acquisition of Arabic LFG dependency structures
|
|
|
|
In: Tounsi, Lamia, Attia, Mohammed and van Genabith, Josef orcid:0000-0003-1322-7944 (2009) Automatic treebank-based acquisition of Arabic LFG dependency structures. In: EACL 2009 Workshop on Computational Approaches to Semitic Languages, 31 March 2009, Athens, Greece. (2009)
|
|
BASE
|
|
Show details
|
|
|
| 3 |
DCU 250 Arabic dependency bank: an LFG gold standard resource for the Arabic Penn treebank
|
|
|
|
In: Al-Raheb, Yafa, Akrout, Amine, van Genabith, Josef and Dichy, J. (2006) DCU 250 Arabic dependency bank: an LFG gold standard resource for the Arabic Penn treebank. In: Arabic NLP/MT Conference 2006, 23 October 2006, London, UK. (2006)
|
|
BASE
|
|
Show details
|
|
|
|
|
