Robust Bilingual Word Alignment for Machine Aided Translation (1993)
| Venue: | In Proceedings of the Workshop on Very Large Corpora |
| Citations: | 64 - 2 self |
BibTeX
@INPROCEEDINGS{Dagan93robustbilingual,
author = {Ido Dagan and Kenneth W. Church and William A. Gale},
title = {Robust Bilingual Word Alignment for Machine Aided Translation},
booktitle = {In Proceedings of the Workshop on Very Large Corpora},
year = {1993},
pages = {1--8}
}
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Abstract
We have developed a new program called word_align for aligning parallel text, text such as the Canadian Hansards that are available in two or more languages. The program takes the output of char_align (Church, 1993), a robust alternative to sentence-based alignment pro- grams, and applies word-level constraints us- ing a version of Brown et al.'s Model 2 (Brown et al., 1993), modified and extended to deal with robustness issues. Word_align was tested on a subset of Canadian Itansards supplied by Simard (Simard et al., 1992). The combination of word_align plus char_align reduces the variance (average square error) by a factor of 5 over char_align alone. More importantly, because word_align and char_align were designed to work robustly on texts that are smaller and more noisy than the 1tansards, it has been pos- sible to successfully deploy the programs at AT&T Language Line Services, a commercial translation service, to help them with difficult terminology.
