Word Sense Linking: Disambiguating Outside the Sandbox
Andrei Stefan Bejgu, Edoardo Barba, Luigi Procopio, Alberte, Fern\'andez-Castro, Roberto Navigli

TL;DR
This paper introduces Word Sense Linking, a new task that combines span identification and sense disambiguation, using a transformer-based model to improve integration of lexical semantics into downstream NLP applications.
Contribution
The paper proposes the novel task of Word Sense Linking and develops a transformer-based architecture to address it, relaxing traditional WSD assumptions.
Findings
Transformer-based model performs well on WSL task.
Scaling WSD systems to WSL shows promising results.
Relaxing assumptions improves practical applicability.
Abstract
Word Sense Disambiguation (WSD) is the task of associating a word in a given context with its most suitable meaning among a set of possible candidates. While the task has recently witnessed renewed interest, with systems achieving performances above the estimated inter-annotator agreement, at the time of writing it still struggles to find downstream applications. We argue that one of the reasons behind this is the difficulty of applying WSD to plain text. Indeed, in the standard formulation, models work under the assumptions that a) all the spans to disambiguate have already been identified, and b) all the possible candidate senses of each span are provided, both of which are requirements that are far from trivial. In this work, we present a new task called Word Sense Linking (WSL) where, given an input text and a reference sense inventory, systems have to both identify which spans to…
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Code & Models
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Taxonomy
MethodsSparse Evolutionary Training
