Anthony DeanDr. Gladys West, whose mathematical models inspired GPS, dies at 95
| Website | https://www.lenarddome.com/ |
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lenarddome
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🤖❤️❌computational cognitive scientist
🔬postdoc at uni of tübingen
🎓guest scientist at max planck biological cybernetics
🎉 psp just hit 14K+ downloads!
Our #rstats package for parameter space partitioning powered our work on g-distance, model comparison, irrationality, and heterogeneity: https://doi.org/10.1037/rev0000550
CRAN: https://cran.r-project.org/package=psp
Our #rstats package for parameter space partitioning powered our work on g-distance, model comparison, irrationality, and heterogeneity: https://doi.org/10.1037/rev0000550
CRAN: https://cran.r-project.org/package=psp
Our analysis revealed that two models, a neural network with rapid attention shifts and a dissimilarity generalised context mode, outperformed the previous market-leader EXIT, based on g-distance. An outcome that holds for a wide array of beliefs about the relative importance of alpha and beta.
We applied g-distance to five models of the inverse base-rate effect (IBRE), an irrational learning phenomenon. These models included exemplar-based attentional models of learning, simpler neural networks, ones with competitive gating or rapid attentional shifts, and dissimilarity context models.
To determine the range of a model's behaviour, we use parameter-space partitioning (PSP), a sophisticated MCMC. This method explores the model's parameter space to discover all the distinct patterns of behaviour it can generate. It slices up model behaviour into distinct ordinal behaviours.
g-distance comprises of two easily interpretable dimensions: accommodation (α), the proportion of observed human behaviours that the model can produce, and excess flexibility (β), the proportion of unobserved behavioural patterns that the model produces.
This one is finally out! 🎉
We introduce g-distance, a measure we derive with Set Theory that assesses model adequacy by comparing the range of behaviours exhibited by models to that of humans. #computationalmodeling
#cognitivescience
So, I just learned that the 4th power is also called tesseracted, hypercubed, supercubed... or.... zenzizenzic
My *psp* package received some new updates and bug fixes 🥳🥳 check it out here:
psp: Parameter Space Partitioning MCMC for Global Model Evaluation
Implements an n-dimensional parameter space partitioning algorithm for evaluating the global behaviour of formal computational models as described by Pitt, Kim, Navarro and Myung (2006) <<a href="https://doi.org/10.1037%2F0033-295X.113.1.57" target="_top">doi:10.1037/0033-295X.113.1.57</a>>.
Taylor LorenzMost people panic about political deepfakes, but 98% of deepfakes are porn, and 99% of those targeted are women/girls.
Companies profit by facilitating this abuse toward women, Google directs traffic to these sites, and the female victims of these attacks have no recourse https://nyti.ms/3PwNOGs
