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InfantSimulator

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Why do infants learn language so fast? A reverse engineering approach

How do infants learn their first language(s)? The popular yet controversial 'statistical learning hypothesis' posits that they learn by gradually collecting statistics over their language inputs. This is strickingly similar to how... ver más

31/12/2029

EHESS

2M€

Presupuesto del proyecto: 2M€

Líder del proyecto

ECOLE DES HAUTES ETUDES EN SCIENCES SOCIALES No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

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Financiación concedida El organismo HORIZON EUROPE notifico la concesión del proyecto el día 2024-10-01

ERC-2023-ADG: ERC ADVANCED GRANTS Scope:Objectives

I+D

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2 Participantes

EHESS

2.29M€ | Lider

ENS

206.25K€ | Participante

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Duración del proyecto: 62 meses Fecha Inicio: 2024-10-01
Fecha Fin: 2029-12-31

Líder del proyecto

ECOLE DES HAUTES ETUDES EN SCIENCES SOCIALES No se ha especificado una descripción o un objeto social para esta compañía.

TRL 4-5

Presupuesto del proyecto 2M€

Fecha límite de participación Sin fecha límite de participación.

Descripción del proyecto How do infants learn their first language(s)? The popular yet controversial 'statistical learning hypothesis' posits that they learn by gradually collecting statistics over their language inputs. This is strickingly similar to how current AI's Large Language Models (LLMs) learn and shows that simple statistical mechanisms may be sufficient to attain adult-like language competence. But does it? Estimates of language inputs to children show that by age 3, they have received 2 or 3 orders of magnitude less data than LLMs of similar performance. And the gap grows exponentially larger with children's age. Worse, when models are fed with speech instead of text they learn even slower. How are infants so efficient learners? This project tests the hypothesis that in addition to statistical learning, infants benefit from 3 mechanisms that accelerate their learning rate. (1) They are born with a \textit{vocal tract} which helps them understand the link between abstract motor commands and speech sounds, and decode noisy speech inputs more efficiently. (2) They have an \textit{episodic memory} enabling them to learn from unique events, instead of gradually learning from thousands of repetitions. (3) They start with a \textit{evolved learning architecture} optimized for generalisation from few and noisy inputs. Our approach is to build a computational model of the learner (an infant simulator), which when fed by realistic language input produces outcome measures comparable to children's (laboratory experiments, vocabulary estimates). This gives a quantitative estimate of the efficiency of each 3 mechanisms, as well as new testable predictions. We start with English and French that have both accessible large annotated speech corpora and documented acquisition landmarks and focus on the first three years of life. We then help building similar resources across a larger set of languages by fostering a cross-disciplinary community that shares tools, data and analysis methods.

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