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arXiv · 1710.03476

MoNoise: Modeling Noise Using a Modular Normalization System

Rob van der Goot·Gertjan van Noord
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Abstract

We propose MoNoise: a normalization model focused on generalizability and efficiency, it aims at being easily reusable and adaptable. Normalization is the task of translating texts from a non- canonical domain to a more canonical domain, in our case: from social media data to standard language. Our proposed model is based on a modular candidate generation in which each module is responsible for a different type of normalization action. The most important generation modules are a spelling correction system and a word embeddings module. Depending on the definition of the normalization task, a static lookup list can be crucial for performance. We train a random forest classifier to rank the candidates, which generalizes well to all different types of normaliza- tion actions. Most features for the ranking originate from the generation modules; besides these features, N-gram features prove to be an important source of information. We show that MoNoise beats the state-of-the-art on different normalization benchmarks for English and Dutch, which all define the task of normalization slightly different.

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Rob van der Goot, Gertjan van Noord. 2017-10-10. MoNoise: Modeling Noise Using a Modular Normalization System. https://arxiv.org/abs/1710.03476

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