SIMPLE and SDT

Thu 19 April 2012 by Adrian Brasoveanu

The R & JAGS scripts we used today to discuss ch. 12 “The SIMPLE Model of Memory” and ch. 11 “Signal Detection Theory” of Lee & Wagenmakers (“Bayesian Cognitive Modeling: A Practical Course”, to appear) are available here: ch-12-LW.r and ch-11-LW.r. As we mentioned during the meeting, these …

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Individual Differences in Memory Retention

Thu 05 April 2012 by Adrian Brasoveanu

The R & JAGS script we used today to discuss ch. 10 “Individual Differences in Memory Retention” of Lee & Wagenmakers (“Bayesian Cognitive Modeling: A Practical Course”, to appear) is available here: ch-10-LW.r. As we mentioned during the meeting, this chapter is an intro to random-effects models (random effects by …

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Generalized Context Model

Sun 18 March 2012 by Adrian Brasoveanu

Ryan Bennett presented ch. 14 “Generalized Context Model” of Lee & Wagenmakers (“Bayesian Cognitive Modeling: A Practical Course”, to appear) on March 15. The R script discussed in class is available here: GCM-code.R. You can find the required data file “KruschkeData.mat” in the “Code.zip” file available on …

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Signal Detection Theory

Sun 18 March 2012 by Adrian Brasoveanu

Ekaterina Kravtchenko presented ch. 11 “Signal Detection Theory” of Lee & Wagenmakers (“Bayesian Cognitive Modeling: A Practical Course”, to appear) on March 13. The handout, R script and BUGS model discussed in class are available here: SDT.pdf, SDT-1.R, SDT-1.txt.

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Bootstrapping in a language of thought

Sun 11 March 2012 by Adrian Brasoveanu

Karl DeVries presented ch. 2 (“Bootstrapping in a language of thought: a formal model of conceptual change in number word learning”) of Steve Piantadosi’s 2011 dissertation (Learning and the language of thought) on March 8.

Steve is currently developing LOTlib, a python library to model learning complex concepts as …

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Heuristic Decision-Making

Thu 08 March 2012 by Adrian Brasoveanu

Jennifer Sawyer presented ch. 13 “Heuristic Decision-Making” of Lee & Wagenmakers (“Bayesian Cognitive Modeling: A Practical Course”, to appear) on March 6. The two Take-The-Best (TTB) scripts and BUGS models are available here: TakeTheBest-1.R, TakeTheBest-2.R, TakeTheBest-1.txt, TakeTheBest-2.txt. The WinBUGS plots and summary for TTB 2 are available …

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Licensing sentence-internal readings in English

Wed 29 February 2012 by Adrian Brasoveanu

As a follow-up to our intro to ordinal probit regression, the Feb. 28 class discussed an experiment investigating the semantics of sentence-internal readings in English (joint research by Jakub Dotlacil and Adrian Brasoveanu). The paper reporting the results of the acceptability-judgment experiment and its consequences for the semantics of sentence-internal …

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LaLoCo mailing list

Tue 28 February 2012 by Adrian Brasoveanu

There is a mailing list for the LaLoCo lab. Please email Adrian Brasoveanu (see contact info here) if you want to subscribe.

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Generalized linear (mixed) models etc.

Sat 11 February 2012 by Adrian Brasoveanu

The last 2 scripts introduce generalized linear (mixed) models and some extensions:

  1. First script: bayes-winbugs-jags-5.r; contents:

    • generalized linear models
    • Poisson “t-test” (simulated data, R analysis, WinBUGS / JAGS analysis)
    • binomial “t-test” (simulated data, R analysis, WinBUGS / JAGS analysis)
    • binomial ANCOVA (simulated data, R analysis, WinBUGS / JAGS analysis)
    • binomial GLMM (simulated …
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Linear and linear mixed-effects models in R and WinBUGS / JAGS

Thu 02 February 2012 by Adrian Brasoveanu

Plan for the Feb. 7, Feb. 9 and probably Feb. 14 classes (again, feel free to bring your laptops to class and work through the scripts on your own as we go through them in class):

  1. First script: bayes-winbugs-jags-3.r; contents: - simple linear regression (simulated data, R analysis, WinBUGS / JAGS …

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