In this paper we present a method to learn word embeddings that are resilient to misspellings. Existing word embeddings have limited applicability to malformed texts, which contain a non-negligible amount of out-of-vocabulary words. We propose a method combining FastText with subwords and a supervised task of learning misspelling patterns. In our method, misspellings of each word are embedded close to their correct variants. We train these embeddings on a new dataset we are releasing publicly. Finally, we experimentally show the advantages of this approach on both intrinsic and extrinsic NLP tasks using public test sets.
Misspelling Oblivious Word Embeddings / Piktus, Aleksandra; Bora Edizel, Necati; Bojanowski, Piotr; Grave, Edouard; Ferreira, Rui; Silvestri, Fabrizio. - (2019), pp. 3226-3234. (Intervento presentato al convegno NAACL 2020 tenutosi a Minneapolis) [10.18653/v1/N19-1326].
Misspelling Oblivious Word Embeddings
Fabrizio Silvestri
2019
Abstract
In this paper we present a method to learn word embeddings that are resilient to misspellings. Existing word embeddings have limited applicability to malformed texts, which contain a non-negligible amount of out-of-vocabulary words. We propose a method combining FastText with subwords and a supervised task of learning misspelling patterns. In our method, misspellings of each word are embedded close to their correct variants. We train these embeddings on a new dataset we are releasing publicly. Finally, we experimentally show the advantages of this approach on both intrinsic and extrinsic NLP tasks using public test sets.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.