Semantic Apparatus – Semantic Entropy in Language Comprehension

Cited by Lee Sonogan

Entropy | Free Full-Text | Semantic Entropy in Language Comprehension

Abstract by Noortje J. Venhuizen *, Matthew W. Crocker and Harm Brouwer

Language is processed on a more or less word-by-word basis, and the processing difficulty induced by each word is affected by our prior linguistic experience as well as our general knowledge about the world. Surprisal and entropy reduction have been independently proposed as linking theories between word processing difficulty and probabilistic language models. Extant models, however, are typically limited to capturing linguistic experience and hence cannot account for the influence of world knowledge. A recent comprehension model by Venhuizen, Crocker, and Brouwer (2019, Discourse Processes) improves upon this situation by instantiating a comprehension-centric metric of surprisal that integrates linguistic experience and world knowledge at the level of interpretation and combines them in determining online expectations. Here, we extend this work by deriving a comprehension-centric metric of entropy reduction from this model. In contrast to previous work, which has found that surprisal and entropy reduction are not easily dissociated, we do find a clear dissociation in our model. While both surprisal and entropy reduction derive from the same cognitive process—the word-by-word updating of the unfolding interpretation—they reflect different aspects of this process: state-by-state expectation (surprisal) versus end-state confirmation (entropy reduction). View Full-Text

Publication: mdpi.com

Pub Date: 30 October 2019 Doi: https://doi.org/10.3390/e21121159

Keywords: natural language; entropy; neural networks

https://www.mdpi.com/1099-4300/21/12/1159 (Plenty more sections and references in this research article)

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