Improving Corpus Annotation Quality Using Word Embedding Models

Attila Novák


Web-crawled corpora contain a significant amount of noise. Automatic corpus annotation tools introduce even more noise performing erroneous language identification or encoding detection, introducing tokenization and lemmatization errors and adding erroneous tags or analyses to the original words. Our goal with the methods presented in this article was to use word embedding models to reveal such errors and to provide correction procedures. The evaluation focuses on analyzing and validating noun compounds identifying bogus compound analyses, recognizing and concatenating fragmented words, detecting erroneously encoded text, restoring accents and handling the combination of these errors in a Hungarian web-crawled corpus.


Corpus linguistics; lexical resources; corpus annotation; word embeddings

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