Harnessing the linguistic signal to predict scalar inferences

Sebastian Schuster, Yuxing Chen, Judith Degen


Abstract
Pragmatic inferences often subtly depend on the presence or absence of linguistic features. For example, the presence of a partitive construction (of the) increases the strength of a so-called scalar inference: listeners perceive the inference that Chris did not eat all of the cookies to be stronger after hearing “Chris ate some of the cookies” than after hearing the same utterance without a partitive, “Chris ate some cookies”. In this work, we explore to what extent neural network sentence encoders can learn to predict the strength of scalar inferences. We first show that an LSTM-based sentence encoder trained on an English dataset of human inference strength ratings is able to predict ratings with high accuracy (r = 0.78). We then probe the model’s behavior using manually constructed minimal sentence pairs and corpus data. We first that the model inferred previously established associations between linguistic features and inference strength, suggesting that the model learns to use linguistic features to predict pragmatic inferences.
Anthology ID:
2020.acl-main.479
Volume:
Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics
Month:
July
Year:
2020
Address:
Online
Editors:
Dan Jurafsky, Joyce Chai, Natalie Schluter, Joel Tetreault
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
5387–5403
Language:
URL:
https://aclanthology.org/2020.acl-main.479
DOI:
10.18653/v1/2020.acl-main.479
Bibkey:
Cite (ACL):
Sebastian Schuster, Yuxing Chen, and Judith Degen. 2020. Harnessing the linguistic signal to predict scalar inferences. In Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics, pages 5387–5403, Online. Association for Computational Linguistics.
Cite (Informal):
Harnessing the linguistic signal to predict scalar inferences (Schuster et al., ACL 2020)
Copy Citation:
PDF:
https://aclanthology.org/2020.acl-main.479.pdf
Video:
 http://slideslive.com/38928842
Code
 yuxingch/Implicature-Strength-Some