Abstract:Named-entity Recognition (NER) is an important task in the NLP field , and is widely used to solve many challenges. However, in many scenarios, not all of the entities are explicitly mentioned in the text. Sometimes they could be inferred from the context or from other indicative words. Consider the following sentence: "CMA can easily hydrolyze into free acetic acid." Although water is not mentioned explicitly, one can infer that H2O is an entity involved in the process. In this work, we present the problem of… Show more
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