Frete Grátis
  • Google Plus

Neuromimetic Semantics H (Cód: 240049)


Elsevier Science

Ooops! Este produto não está mais a venda.
Mas não se preocupe, temos uma versão atualizada para você.

Ooopss! Este produto está fora de linha, mas temos outras opções para você.
Veja nossas sugestões abaixo!

R$ 662,40 em até 10x de R$ 66,24 sem juros
Cartão Saraiva R$ 629,28 (-5%) em até 1x no cartão ou em até 12x de R$ 55,20 sem juros

Cartão Saraiva
Quer comprar em uma loja física? Veja a disponibilidade deste produto

Entregas internacionais: Consulte prazos e valores de entrega para regiões fora do Brasil na página do Carrinho.

ou receba na loja com frete grátis


* Válido para compras efetuadas em dias úteis até às 18:00, horário de Brasília, com cartão de crédito e aprovadas na primeira tentativa.

Formas de envio Custo Entrega estimada
X Consulte as lojas participantes

Saraiva MegaStore Shopping Eldorado Av. Rebouças, 3970 - 1º piso - Pinheiros CEP: 05402-600 - São Paulo - SP


This book attempts to marry truth-conditional semantics with cognitive linguistics in the church of computational neuroscience. To this end, it examines the truth-conditional meanings of coordinators, quantifiers, and collective predicates as neurophysiological phenomena that are amenable to a neurocomputational analysis. Drawing inspiration from work on visual processing, and especially the simple/complex cell distinction in early vision (V1), we claim that a similar two-layer architecture is sufficient to learn the truth-conditional meanings of the logical coordinators and logical quantifiers. As a prerequisite, much discussion is given over to what a neurologically plausible representation of the meanings of these items would look like. We eventually settle on a representation in terms of correlation, so that, for instance, the semantic input to the universal operators (e.g. and, all)is represented as maximally correlated, while the semantic input to the universal negative operators (e.g. nor, no)is represented as maximally anticorrelated. On the basis this representation, the hypothesis can be offered that the function of the logical operators is to extract an invariant feature from natural situations, that of degree of correlation between parts of the situation. This result sets up an elegant formal analogy to recent models of visual processing, which argue that the function of early vision is to reduce the redundancy inherent in natural images. Computational simulations are designed in which the logical operators are learned by associating their phonological form with some degree of correlation in the inputs, so that the overall function of the system is as a simple kind of pattern recognition. Several learning rules are assayed, especially those of the Hebbian sort, which are the ones with the most neurological support. Learning vector quantization (LVQ) is shown to be a perspicuous and efficient means of learning the patterns that are of interest. We draw a formal parallelism between the initial, competitive layer of LVQ and the simple cell layer in V1, and between the final, linear layer of LVQ and the complex cell layer in V1, in that the initial layers are both selective, while the final layers both generalize. It is also shown how the representations argued for can be used to draw the traditionally-recognized inferences arising from coordination and quantification, and why the inference of subalternacy breaks down for collective predicates. Finally, the analogies between early vision and the logical operators allow us to advance the claim of cognitive linguistics that language is not processed by proprietary algorithms, but rather by algorithms that are general to the entire brain. Thus in the debate between objectivist and experiential metaphysics, this book falls squarely into the camp of the latter. Yet it does so by means of a rigorous formal, mathematical, and neurological exposition – in contradiction of the experiential claim that formal analysis has no place in the understanding of cognition. To make our own counter-claim as explicit as possible, we present a sketch of the LVQ structure in terms of mereotopology, in which the initial layer of the network performs topological operations, while the final layer performs mereological operations. The book is meant to be self-contained, in the sense that it does not assume any prior knowledge of any of the many areas that are touched upon. It therefore contains mini-summaries of biological visual processing, especially the retinocortical and ventral /what?/ parvocellular pathways


Produto sob encomenda Sim
Marca Elsevier Science
Cód. Barras 9780444502087
Altura 24.28 cm
I.S.B.N. 9780444502087
Profundidade 3.45 cm
Acabamento Capa dura
Ano da edição 8/5/2004
Idioma Inglês
Número de Páginas 554
Peso 1.12 Kg
Largura 17.17 cm


Avaliação geral: 0

Você está revisando: Neuromimetic Semantics H

Neuromimetic Semantics H (Cód: 240049) Neuromimetic Semantics H (Cód: 240049)
R$ 662,40
Neuromimetic Semantics H (Cód: 240049) Neuromimetic Semantics H (Cód: 240049)
R$ 662,40