A learning perspective on the emergence of abstractions: the curious case of phonemes

• URL: http://arxiv.org/abs/2012.07499v3
• Date: Thu, 17 Dec 2020 14:06:59 GMT
• Title: A learning perspective on the emergence of abstractions: the curious case of phonemes
• Authors: Petar Milin, Benjamin V. Tucker, and Dagmar Divjak
• Abstract summary: We test two opposing principles regarding the development of language knowledge in linguistically untrained language users. We probed whether MBL and ECL could give rise to a type of language knowledge that resembles linguistic abstractions. We show that ECL learning models can learn abstractions and that at least part of the phone inventory can be reliably identified from the input.
• Score: 2.580765958706854
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In the present paper we use a range of modeling techniques to investigate whether an abstract phone could emerge from exposure to speech sounds. We test two opposing principles regarding the development of language knowledge in linguistically untrained language users: Memory-Based Learning (MBL) and Error-Correction Learning (ECL). A process of generalization underlies the abstractions linguists operate with, and we probed whether MBL and ECL could give rise to a type of language knowledge that resembles linguistic abstractions. Each model was presented with a significant amount of pre-processed speech produced by one speaker. We assessed the consistency or stability of what the models have learned and their ability to give rise to abstract categories. Both types of models fare differently with regard to these tests. We show that ECL learning models can learn abstractions and that at least part of the phone inventory can be reliably identified from the input.

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