English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/128475
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Flexible word meaning in embodied agents

AutorWellens, Pieter; Loetzsch, Martin; Steels, Luc
Palabras claveWord learning
Lexicon acquisition
Referential uncertainty
Embodiment
Language games
Multi-agent simulations
Fecha de publicación2008
EditorTaylor & Francis
CitaciónConnection Science 20(2-3): 173-191 (2008)
ResumenLearning the meanings of words requires coping with referential uncertainty – a learner hearing a novel word cannot be sure which aspects or properties of the referred object or event comprise the meaning of the word. Data from developmental psychology suggest that human learners grasp the important aspects of many novel words after just a few exposures, a phenomenon known as fast mapping. Traditionally, word learning is viewed as a mapping task, in which the learner has to map a set of forms onto a set of pre-existing concepts. We criticise this approach and argue instead for a flexible nature of the coupling between form and meanings as a solution to the problem of referential uncertainty. We implemented and tested the model in populations of humanoid robots that play situated language games about objects in their shared environment. Results show that the model can handle an exponential increase in uncertainty and allows scaling towards very large meaning spaces, while retaining the ability to grasp an operational meaning almost instantly for a great number of words. In addition, the model captures some aspects of the flexibility of form-meaning associations found in human languages. Meanings of words can shift between being very specific (names) and general (e.g. ‘small’). We show that this specificity is biased not by the model itself but by the distribution of object properties in the world.
Versión del editorhttp://dx.doi.org/10.1080/09540090802091966
URIhttp://hdl.handle.net/10261/128475
DOI10.1080/09540090802091966
ISSN0954-0091
E-ISSN1360-0494
Aparece en las colecciones: (IBE) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Flexible word.pdf1,09 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.