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Treebank-based automatic acquisition of wide coverage, deep linguistic resources for Japanese
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Oya, Masanori. - : Dublin City University. National Centre for Language Technology (NCLT), 2010. : Dublin City University. School of Computing, 2010
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In: Oya, Masanori (2010) Treebank-based automatic acquisition of wide coverage, deep linguistic resources for Japanese. Master of Science thesis, Dublin City University. (2010)
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Guessing the grammatical function of a non-root f-structure in LFG
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In: Bryl, Anton, van Genabith, Josef and Graham, Yvette orcid:0000-0003-1322-7944 (2009) Guessing the grammatical function of a non-root f-structure in LFG. In: IWPT 2009 - 11th International Conference on Parsing Technologies, 7-9 October 2009, Paris, France. (2009)
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Parsing Arabic using treebank-based LFG resources
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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)
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Automatic acquisition of LFG resources for German - as good as it gets
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In: Rehbein, Ines and van Genabith, Josef orcid:0000-0003-1322-7944 (2009) Automatic acquisition of LFG resources for German - as good as it gets. In: Lexical Functional Grammar 2009, 13-16 July 2009, Cambridge, UK. (2009)
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Automatic treebank-based acquisition of Arabic LFG dependency structures
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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)
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Treebank-based acquisition of LFG resources for Chinese
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In: Guo, Yuqing, van Genabith, Josef and Wang, Haifeng (2007) Treebank-based acquisition of LFG resources for Chinese. In: Lexical Functional Grammar 2007, 28-30 July 2007, California, USA. (2007)
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C-structures and f-structures for the British national corpus
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In: Wagner, Joachim orcid:0000-0002-8290-3849 , Seddah, Djamé, Foster, Jennifer orcid:0000-0002-7789-4853 and van Genabith, Josef (2007) C-structures and f-structures for the British national corpus. In: Lexical Functional Grammar 2007, 28-30 July 2007, California, USA. (2007)
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Using very large corpora to detect raising and control verbs
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In: Chrupała, Grzegorz and van Genabith, Josef (2007) Using very large corpora to detect raising and control verbs. In: Lexical Functional Grammar 2007, 28-30 July 2007, California, USA. (2007)
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Exploiting multi-word units in history-based probabilistic generation
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In: Hogan, Deirdre, Cafferkey, Conor, Cahill, Aoife orcid:0000-0002-3519-7726 and van Genabith, Josef (2007) Exploiting multi-word units in history-based probabilistic generation. In: EMNLP-CoNLL 2007 - Joint Meeting of the Conference on Empirical Methods in Natural Language Processing and the Conference on Computational Natural Language Learning, 28-30 June 2007, Prague, Czech Republic. (2007)
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Robust PCFG-based generation using automatically acquired LFG approximations
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In: Cahill, Aoife orcid:0000-0002-3519-7726 and van Genabith, Josef (2006) Robust PCFG-based generation using automatically acquired LFG approximations. In: COLING/ACL 2006 - 21st International Conference on Computational Linguistics and 44th Annual Meeting of the Association for Computational Linguistics, 17-21 July 2006, Sydney, Australia. (2006)
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Improving treebank-based automatic LFG induction for Spanish
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In: Chrupała, Grzegorz and van Genabith, Josef (2006) Improving treebank-based automatic LFG induction for Spanish. In: Lexical Functional Grammar 2006, 10-13 Kuly 2006, Konstanz, Germany. (2006)
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GF-DOP: grammatical feature data-oriented parsing
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In: Finn, Ríona, Hearne, Mary, Way, Andy orcid:0000-0001-5736-5930 and van Genabith, Josef (2006) GF-DOP: grammatical feature data-oriented parsing. In: Lexical Functional Grammar 2006, 10-13 Kuly 2006, Konstanz, Germany. (2006)
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DCU 250 Arabic dependency bank: an LFG gold standard resource for the Arabic Penn treebank
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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)
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Evaluating automatically acquired f-structures against PropBank
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In: Burke, Michael, Cahill, Aoife orcid:0000-0002-3519-7726 , van Genabith, Josef and Way, Andy orcid:0000-0001-5736-5930 (2005) Evaluating automatically acquired f-structures against PropBank. In: LFG05 - 10th International Lexical Functional Grammar Conference, 18-20 July 2005, Bergen, Norway. ISBN 1098-6782 (2005)
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Strong domain variation and treebank-induced LFG resources
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In: Judge, John, Burke, Michael, Cahill, Aoife orcid:0000-0002-3519-7726 , O'Donovan, Ruth, van Genabith, Josef and Way, Andy orcid:0000-0001-5736-5930 (2005) Strong domain variation and treebank-induced LFG resources. In: LFG05 - 10th International Lexical Functional Grammar Conference, 18-20 July 2005, Bergen, Norway. ISBN 1098-6782 (2005)
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Large-scale induction and evaluation of lexical resources from the Penn-II treebank
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In: O'Donovan, Ruth, Burke, Michael, Cahill, Aoife orcid:0000-0002-3519-7726 , van Genabith, Josef and Way, Andy orcid:0000-0001-5736-5930 (2004) Large-scale induction and evaluation of lexical resources from the Penn-II treebank. In: ACL 2004 - 42nd Annual Meeting of the Association for Computational Linguistics, 21-26 July 2004, Barcelona, Spain. (2004)
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Treebank-based acquisition of a Chinese lexical-functional grammar
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In: Burke, Michael, Lam, Olivia, Cahill, Aoife orcid:0000-0002-3519-7726 , Chan, Rowena, O'Donovan, Ruth, Bodomo, Adams, van Genabith, Josef and Way, Andy orcid:0000-0001-5736-5930 (2004) Treebank-based acquisition of a Chinese lexical-functional grammar. In: PACLIC-18 - 18th Pacific Asia Conference on Language, Information and Computation, 8-10 December 2004, Tokyo, Japan. (2004)
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Evaluation of an automatic f-structure annotation algorithm against the PARC 700 dependency bank
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In: Burke, Michael, Cahill, Aoife orcid:0000-0002-3519-7726 , O'Donovan, Ruth, van Genabith, Josef and Way, Andy orcid:0000-0001-5736-5930 (2004) Evaluation of an automatic f-structure annotation algorithm against the PARC 700 dependency bank. In: LFG'04 - Proceedings of the 9th International Conference on Lexical-Functional Grammar, Christchurch, New Zealand, 10-12 July 2004. ISBN 1098-6782 (2004)
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Abstract:
An automatic method for annotating the Penn-II Treebank (Marcus et al., 1994) with high-level Lexical Functional Grammar (Kaplan and Bresnan, 1982; Bresnan, 2001; Dalrymple, 2001) f-structure representations is described in (Cahill et al., 2002; Cahill et al., 2004a; Cahill et al., 2004b; O’Donovan et al., 2004). The annotation algorithm and the automatically-generated f-structures are the basis for the automatic acquisition of wide-coverage and robust probabilistic approximations of LFG grammars (Cahill et al., 2002; Cahill et al., 2004a) and for the induction of LFG semantic forms (O’Donovan et al., 2004). The quality of the annotation algorithm and the f-structures it generates is, therefore, extremely important. To date, annotation quality has been measured in terms of precision and recall against the DCU 105. The annotation algorithm currently achieves an f-score of 96.57% for complete f-structures and 94.3% for preds-only f-structures. There are a number of problems with evaluating against a gold standard of this size, most notably that of overfitting. There is a risk of assuming that the gold standard is a complete and balanced representation of the linguistic phenomena in a language and basing design decisions on this. It is, therefore, preferable to evaluate against a more extensive, external standard. Although the DCU 105 is publicly available, 1 a larger well-established external standard can provide a more widely-recognised benchmark against which the quality of the f-structure annotation algorithm can be evaluated. For these reasons, we present an evaluation of the f-structure annotation algorithm of (Cahill et al., 2002; Cahill et al., 2004a; Cahill et al., 2004b; O’Donovan et al., 2004) against the PARC 700 Dependency Bank (King et al., 2003). Evaluation against an external gold standard is a non-trivial task as linguistic analyses may differ systematically between the gold standard and the output to be evaluated as regards feature geometry and nomenclature. We present conversion software to automatically account for many (but not all) of the systematic differences. Currently, we achieve an f-score of 87.31% for the f-structures generated from the original Penn-II trees and an f-score of 81.79% for f-structures from parse trees produced by Charniak’s (2000) parser in our pipeline parsing architecture against the PARC 700.
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Keyword:
lexical functional grammar; Machine translating
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URL: http://doras.dcu.ie/15301/
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Long-distance dependency resolution in automatically acquired wide-coverage PCFG-based LFG approximations
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In: Cahill, Aoife orcid:0000-0002-3519-7726 , Burke, Michael, O'Donovan, Ruth, van Genabith, Josef and Way, Andy orcid:0000-0001-5736-5930 (2004) Long-distance dependency resolution in automatically acquired wide-coverage PCFG-based LFG approximations. In: ACL 2004 - 42nd Annual Meeting of the Association for Computational Linguistics, 21-26 July 2004, Barcelona, Spain. (2004)
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