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Quibb :: Research

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You will find a collection of articles, tutorials and code snippets here. All documents are encoded in Wolfram CDF format. A free browser plugin can be downloaded.

  • Distribution Fitting

    Given a data set X and an assumed theoretical distribution function f whose form depends on a set of unknown parameters, find the best-fitting parameters, i.e. the value of the parameters which maximizes the resemblance between the theoretical distribution and the distribution o...

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  • Bidirectional Associative Memory

    The problems with existing Hopfield-type neural networks are their inability to (a) learn online, (b) self stabilize, (c) have few spurious memories and (d) learn non-binary stimuli. Consequently, it is difficult for them to be considered as good cognitive models. Over the past years, several types ...

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  • Weibull Parameter Fitting

    Nearly unbiased estimators for the three-parameter Weibull distribution with greater efficiency than the iterative likelihood method. You can find here a A Mathematica package which performs weighted maximum likelihood parameter estimation for the 2-parameter and the 3-parameter Weibull distribution...

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  • Statistical Curve and Distribution Analysis Software

    This program is intended to analyze learning curves, such as the power-law and the exponential curve. It can also return parameters describing distribution of raw data. This program works with parameters naming the input file, its number of column, the column containing dependant variable, and so on...

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  • Parameterizing the Attentional Blink Effect

    This web site brings further information not found in the paper published by the Canadian Journal of Experimental Psychology....

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  • The parallel race model

    It is based on a feed-forward architecture similar to the one used in Perceptron. However, the output units have a different kind of integration rule: it fires when its "accumulator is full". The following Figure illustrate a simple PRN. In addition, it is possible to add time-out units, units that ...

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