2020

Birds have four legs?! NumerSense: Probing Numerical Commonsense Knowledge of Pre-trained Language Models

Lin, Bill Yuchen, Lee, Seyeon, Khanna, Rahul et al.

Understand

Recent works show that pre-trained language models (PTLMs), such as BERT, possess certain commonsense and factual knowledge.

  • They suggest that it is promising to use PTLMs as "neural knowledge bases" via predicting masked words.
  • Surprisingly, we find that this may not work for numerical commonsense knowledge (e.g., a bird usually has two legs).
  • In this paper, we investigate whether and to what extent we can induce numerical commonsense knowledge from PTLMs as well as the robustness of this process.

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