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- Lager, Torbjörn, 1959, et al.
(författare)
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Part of Speech Tagging from a Logical Point of View
- 2001
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Ingår i: In de Groote, P., Morrill, G., Retoré, C. (eds.) Logical Aspects of Computational Linguistics. Springer-Verlag, Lecture Notes in Artificial Intelligence. VOL. 2099:212-227.
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Konferensbidrag (refereegranskat)
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- Nivre, Joakim, et al.
(författare)
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Memory-Based Dependency Parsing.
- 2004
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Ingår i: Proceedings of the Eighth Conference on Computational Natural Language Learning (CoNLL). - : Association for Computational Linguistics (ACL), Stroudsburg. - 1932432302 ; , s. 49-56
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Konferensbidrag (refereegranskat)abstract
- This paper reports the results of experiments using memory-based learning to guide a deterministic dependency parser for unrestricted natural language text. Using data from a small treebank of Swedish, memory-based classifiers for predicting the next action of the parser are constructed. The accuracy of a classifier as such is evaluated on held-out data derived from the treebank, and its performance as a parser guide is evaluated by parsing the held-out portion of the treebank. The evaluation shows that memory-based learning gives a significant improvement over a previous probabilistic model based on maximum conditional likelihood estimation and that the inclusion of lexical features improves the accuracy even further.
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| 7. |
- Nivre, Joakim, et al.
(författare)
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Memory-based dependency parsing
- 2004
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Ingår i: Proceedings of the Eighth Conference on Computational Natural Language Learning.
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Konferensbidrag (populärvet., debatt m.m.)
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| 8. |
- Nivre, Joakim, et al.
(författare)
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Multiword Units in Syntactic Parsing
- 2004
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Ingår i: Proceedings of the Workshop on Methodologies and Evaluation of Multiword Units in Real-World Applications.
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Konferensbidrag (refereegranskat)
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| 9. |
- Nivre, Joakim
(författare)
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Nordic Treebank Network
- 2004
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Ingår i: Nordisk sprogteknologi 2003. - : Museum Tusculanums forlag, Copenhagen. - 9788772899978 ; , s. 247-
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Bokkapitel (refereegranskat)
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- Nivre, Joakim, et al.
(författare)
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Tagging a corpus of spoken Swedish
- 2001
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Ingår i: International Journal of Corpus Linguistics. - 1384-6655. ; 6:1, s. 47-78
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Tidskriftsartikel (refereegranskat)
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| 15. |
- Nivre, Joakim
(författare)
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Theory-supporting treebanks
- 2003
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Ingår i: Proceedings of the Second Workshop on Treebanks and Linguistic Theories.
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Konferensbidrag (populärvet., debatt m.m.)
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| 20. |
- Tiedemann, Jörg, 1972-
(författare)
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Recycling Translations : Extraction of Lexical Data from Parallel Corpora and their Application in Natural Language Processing
- 2003
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The focus of this thesis is on re-using translations in natural language processing. It involves the collection of documents and their translations in an appropriate format, the automatic extraction of translation data, and the application of the extracted data to different tasks in natural language processing.Five parallel corpora containing more than 35 million words in 60 languages have been collected within co-operative projects. All corpora are sentence aligned and parts of them have been analyzed automatically and annotated with linguistic markup.Lexical data are extracted from the corpora by means of word alignment. Two automatic word alignment systems have been developed, the Uppsala Word Aligner (UWA) and the Clue Aligner. UWA implements an iterative "knowledge-poor" word alignment approach using association measures and alignment heuristics. The Clue Aligner provides an innovative framework for the combination of statistical and linguistic resources in aligning single words and multi-word units. Both aligners have been applied to several corpora. Detailed evaluations of the alignment results have been carried out for three of them using fine-grained evaluation techniques.A corpus processing toolbox, Uplug, has been developed. It includes the implementation of UWA and is freely available for research purposes. A new version, Uplug II, includes the Clue Aligner. It can be used via an experimental web interface (UplugWeb).Lexical data extracted by the word aligners have been applied to different tasks in computational lexicography and machine translation. The use of word alignment in monolingual lexicography has been investigated in two studies. In a third study, the feasibility of using the extracted data in interactive machine translation has been demonstrated. Finally, extracted lexical data have been used for enhancing the lexical components of two machine translation systems.
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