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Conference papers
A Word Clustering Approach to Domain Adaptation: Effective Parsing of Biomedical Texts
Abstract : We present a simple and effective way to perform out-of-domain statistical parsing by drastically reducing lexical data sparseness in a PCFG-LA architecture. We replace terminal symbols with unsupervised word clusters acquired from a large newspaper corpus augmented with biomedical target- domain data. The resulting clusters are effective in bridging the lexical gap between source-domain and target-domain vocabularies. Our experiments combine known self-training techniques with unsupervised word clustering and produce promising results, achieving an error reduction of 21% on a new evaluation set for biomedical text with manual bracketing annotations.
Cited literature [21 references]
https://hal.inria.fr/hal-00659577
Contributor : Marie Candito <>
Submitted on : Friday, January 13, 2012 - 10:38:57 AM
Last modification on : Thursday, February 11, 2021 - 2:38:02 PM
Long-term archiving on: : Saturday, April 14, 2012 - 2:22:50 AM
Contributor : Marie Candito <>
Submitted on : Friday, January 13, 2012 - 10:38:57 AM
Last modification on : Thursday, February 11, 2021 - 2:38:02 PM
Long-term archiving on: : Saturday, April 14, 2012 - 2:22:50 AM
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