Actors: If you’re an American or have American friends/colleagues and family, encourage them (and I encourage you) to contact your representative and both your senators and tell them your needs in regards to the No Fakes Act: https://www.congress.gov/event/118th-congress/senate-event/335702
This time, a behavioral model in mathematical form for #sociology and quantitative/computational #psychology
I propose the probability for a person to take the time and find out the #truth about an issue can be modelled based on the inverse ratio of culturally significant events they have to contend with.
The Viper is a series of one-man space superiority fighters developed and operated by the Colonial Fleet in the early years of the 1st Cylon War. The origins of the Viper lie with the Caprican Air Force Viper jet, which was in service for some time before 58 BCH. It is presently unknown if the spaceborne iteration which fought...
@thisnorthernboy makes sense as otherwise they'd undermine the original licensor (in this case you) since unlike a physical media (i.e. DVD) the license isn't tied to a copy-protected physical object...
As eyes are focused on Nova Scotia and Bermuda in the Atlantic, long range ECMWF models are indicating a potential ramping up of severe weather later next week.
The images attached show a trough sweeping through the plains by Friday or Saturday of next week (September 22nd or 23rd). (Alt text omitted)
Exact timing is to be determined, of course.
Given the right conditions, this can lead to the development of severe thunderstorms and will need to be monitored.
I.T. systems company Fujitsu Ltd. is providing artificial intelligence model generation and fairness assessment software as open-source projects hosted by the Linux Foundation.
A somewhat contrived question. I want to know if we can generalize or extend the idea of model complexity used in machine learning, statistical learning theory, and deep nets. Alternately, what are its limits? (Indirectly, I want to tease apart what either “model” or “complexity” means in this worldview. They do not seem to be “models” that one uses in science typically nor their measure of complexity seem to line up with any scientific model).
In ML, we typically use, “the number of free parameters” as proxy for model complexity, i.e., weights and biases etc., then penalize for over-parameterization with some information criteria (AIC, BIC etc., etc.,), or regularize (with dropout etc.,) to arrive at bias-variance tradeoff curves. Then there is the double descent (Belkin et al.,) for deep-nets that seems to buck the trend of standard ML (kernel) methods.
My question: if we are to turn this approach to scientific models, how can we evaluate their complexity in the same machine learning framework (yes, I know this sounds bizarre)?
For example, take any simple physics model, as explanatory as it is, it is also predictive. If I were to treat it as a purely predictive model, and try to plot the bias-variance curve, what would constitute its complexity (x-axis), and where/when does its error start going up (y-axis, so the model breaks)? If we can’t do this ML-ification of a simple physics model, why not?
Corollary: Take some nonlinear dynamical system that is the model of some physical phenomenon, how do you define its model complexity? (Are the three parameters of a Lorentz attractor the model complexity of the system in ML parlance?)
Ok, friends. Five tiny TRS-80 Model III models are in the shop!
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This is a bit of a trial to see if anyone digs this sort of work. If not, it's entirely possible that these will be the only five I make so... perhaps a limited series?
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If you have questions then feel free to ask them in the thread or via DM. If you have retro PC nerd friends then feel free to send them my way.
@wonderofscience Eye-Candy at its best! That‘s a super-nice example to demonstrate the power of physical #models, #simulation and combined #observations!
It‘s always shocking to realise, how many people lack even the faintest idea of the #scientific method…
This guy built a full-size Battlestar Galactica Viper in his garage (imgur.com)
The Viper is a series of one-man space superiority fighters developed and operated by the Colonial Fleet in the early years of the 1st Cylon War. The origins of the Viper lie with the Caprican Air Force Viper jet, which was in service for some time before 58 BCH. It is presently unknown if the spaceborne iteration which fought...