David E. Rumelhart

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A model of context effects ii in various contexts. In the moqel interactions of detectors for excites detectors for visual letters consistent with the a< detectors for consistent words and send feedback to the ceptibility of their constituent the perceptual advantage fo consistent with the basic fact; model produces facilitation fi words. Pseudowords(More)
Internal models of the environment have an important role to play in adaptive systems, in general, and are of particular importance for the supervised learning paradigm. In this article we demonstrate that certain classical problems associated with the notion of the “teacher” in supervised learning con be solved by judicious use of learned internal models(More)
This paper reporis the results of our studies with an unsupervised learning paradigm which we have called “Competitive Learning.” We have examined competitive learning using both computer simulation and formal analysis and hove found that when it is applied to parallel networks of neuron-like elements, many potentially useful learning tasks can be(More)
  • References, D B Schwartz, +5 authors B A Huberman Generalization
  • 1992
It has been observed in numerical simulations that a weight decay can improve generalization in a feed-forward neural network. This paper explains why. It is proven that a weight decay has two e ects in a linear network. First, it suppresses any irrelevant components of the weight vector by choosing the smallest vector that solves the learning problem.(More)
We review the major phenomena of skilled typing and propose a model for the control of the hands and fingers during typing. The model is based upon an Activation-Trigger-Schema system in which a hierarchical structure of schemata directs the selection of the letters to be typed and, then, controls the hand and finger movements by a cooperative, relaxation(More)
The interactive activation model of cor. text effects in letter perception is reviewed, elaborated, and tested. According to the model context aids the perception of target letters as they are processed in the perceptual system. The implication that the duration and timing of the context in which a letter occurs should greatly influence the perceptibility(More)
We describe a distributed model of information processing and memory and apply it to the representation of general and specific information. The model consists of a large number of simple processing elements which send excitatory and inhibitory signals to each other via modifiable connections. Information processing is thought of as the process whereby(More)