Abstract of FKI-214-96

Document-Name:  fki-214-96.ps.gz
Title:		Computer Simulation of Language Acquisition:
		A Proposal concerning early language learning in a micro-world 
Authors:	Gabriele Scheler 
Revision-Date:	1995/11/27 
Category:	Technical Report (Forschungsberichte Künstliche Intelligenz)
Abstract:	The goal of this work is to investigate the acquisition of 
		particular elementary linguistic functions in a simulation 
		environment.
		The linguistic functions are denotation of objects and spatial
		relations. They are placed in the context of simulated action.
		A simulated micro-world, as it is known from research in 
		situated action and learning (e.g. robotics), is supplemented 
		by linguistic explanations of a 'teacher'.
		The agent has the (simulated) capability of visual perception 
		in a field of attention, of manipulation with physical objects,
		and of generating utterances, which relate to perception and
		action of the agent itself. The development of the latter 
		capability is the subject of the learning approaches.
		The agent's utterances correspond by content to the 
                explanations of the teacher.
		The goal of learning is to attribute certain nouns (e.g.
		vase, ball, pen, corner, window, center, floor)
		to objects or places, and prepositions in, at, 
		between) to spatial relations between them and 
		to correctly generate descriptions of actions or scenes.
		The acquisition of denotations must be realized by a 
		learning method which is based on association, classification 
		and generalization.
		Particular attention is placed on the emergence of a 
		semantic representation as a mediating level between cognitive 
		and linguistic structures.
		The progression of language acquisition, the necessary input by
		the 'teacher', the types of mistakes and incomplete productions
		are compared to data from child language acquisition 
		which have been made available by the CHILDES project.
		This is a work of basic research, which investigates the 
		relation of linguistic expression and cognitive representation 
		in its origination by the instrument of a 
		computer-simulated model.
Keywords:  Language acquisition, Connectionist models, CHILDES,vocabulary
learning, spatial relations	
Size:		16 pages
Language:	English
ISSN:		0941-6358
Copyright:	The ``Forschungsberichte Künstliche Intelligenz''
		series includes primarily preliminary publications,
		specialized partial results, and supplementary
		material. In the interest of a subsequent final
		publication these reports should not be copied. All
		rights and the responsability for the contents of the
		report are with the authors, which would appreciate
		critical comments.

Gerhard Weiss