The formation of perceptual space in early phonetic acquisition: a cross-linguistic modeling approach

Autor:	Tan, Frank Lihui, Do, Youngah
Rok vydání:	2024
Předmět:	Computer Science - Computation and Language Computer Science - Machine Learning Computer Science - Sound Electrical Engineering and Systems Science - Audio and Speech Processing I.2.7
Druh dokumentu:	Working Paper
Popis:	This study investigates how learners organize perceptual space in early phonetic acquisition by advancing previous studies in two key aspects. Firstly, it examines the shape of the learned hidden representation as well as its ability to categorize phonetic categories. Secondly, it explores the impact of training models on context-free acoustic information, without involving contextual cues, on phonetic acquisition, closely mimicking the early language learning stage. Using a cross-linguistic modeling approach, autoencoder models are trained on English and Mandarin and evaluated in both native and non-native conditions, following experimental conditions used in infant language perception studies. The results demonstrate that unsupervised bottom-up training on context-free acoustic information leads to comparable learned representations of perceptual space between native and non-native conditions for both English and Mandarin, resembling the early stage of universal listening in infants. These findings provide insights into the organization of perceptual space during early phonetic acquisition and contribute to our understanding of the formation and representation of phonetic categories. Comment: 51 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2407.18501 Zobrazit plný text záznamu View this record from Arxiv