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Gap between theory and practice: noise sensitive word alignment in machine translation

Okita, Tsuyoshi and Graham, Yvette and Way, Andy (2010) Gap between theory and practice: noise sensitive word alignment in machine translation. In: WAPA 2010 - First Workshop on Applications of Pattern Analysis, 1-3 September 2010, Windsor, UK .

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Abstract

Word alignment is to estimate a lexical translation probability p(e|f), or to estimate the correspondence g(e, f) where a function g outputs either 0 or 1, between a source word f and a target word e for given bilingual sentences. In practice, this formulation does not consider the existence of ‘noise’ (or outlier) which may cause problems depending on the corpus. N-to-m mapping objects, such as paraphrases, non-literal translations, and multiword expressions, may appear as both noise and also as valid training data. From this perspective, this paper tries to answer the following two questions: 1) how to detect stable patterns where noise seems legitimate, and 2) how to reduce such noise, where applicable, by supplying extra information as prior knowledge to a word aligner.

Item Type:Conference or Workshop Item (Paper)
Event Type:Workshop
Refereed:Yes
Subjects:Computer Science > Machine translating
DCU Faculties and Centres:Research Initiatives and Centres > Centre for Next Generation Localisation (CNGL)
Research Initiatives and Centres > National Centre for Language Technology (NCLT)
Published in:Workshop on Applications of Pattern Analysis. JMLR Workshop and Conference Proceedings 11. Journal of Machine Learning Research.
Publisher:Journal of Machine Learning Research
Official URL:http://jmlr.csail.mit.edu/proceedings/papers/v11/
Copyright Information:Copyright 2010 the authors
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
Funders:Science Foundation Ireland
ID Code:15800
Deposited On:10 Nov 2010 15:01 by Shane Harper. Last Modified 10 Nov 2010 15:01

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