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Embedding Senses via Dictionary Bootstrapping
Proceedings of the 33rd Conference on Uncertainty in Artificial Intelligence, PMLR R15:331-340, 2017.
Abstract
This paper addresses the problem of embedding senses of a plain word according to its context. Natural language is inherently ambiguous, due to the presence of many multi-sensed words. Such ambiguity might have undesirable influence over many text-mining tools, including word embed- ding. Traditional word embedding techniques have focused on identifying which words tend to co-occur with one another in order to derive close embeddings for such words. However, the effectiveness of this approach is largely suscep- tible to the validity and neutrality of the train- ing corpus. To address this problem, we propose to use the dictionary as the authoritative corpus for computing the word embeddings. The ba- sic idea is to simultaneously embed the defini- tion sentence while disambiguating words. Since dictionaries list a set of disambiguated senses, the proposed procedure yields sense embeddings which exhibit semantic characteristics compara- ble to plain word embeddings.