bruturis (u/bruturis)

bruturis commented on The Bayesian Cringe (2021) statmodeling.stat.columbi... · Posted by u/EndXA

bruturis · a year ago

Prior are now not subjective but useful, the OP is about the problem of choosing the best priors. The best options are informative priors (1) and regularizers (2). So, for example, choosing as prior a Laplace distribution for the unknown parameters is equivalent to the LASSO that is a well known way of obtaining sparse models with few coefficients. In (2) there is an example in which a prior suggest a useful regularization method for regression. In (3) the author discusses prior modeling.

(1) https://en.wikipedia.org/wiki/Prior_probability#Informative_...

(2) https://skeptric.com/prior-regularise/index.html

(3) https://betanalpha.github.io/assets/case_studies/prior_model...

bruturis commented on Ask HN: Some tips for evaluating intelligent agents? · Posted by u/bruturis

willd13 · a year ago

What do you mean by an "intelligent actors platform"?

bruturis · a year ago

The platform allows the agents to create new tools and organize knowledge. Is about 60000 lines of code, about six months 10 hours/day seven days a week. I hope my friend get the appropriate funding to continue with his project, as karpathy recommend in one of his talk, first get the system to obtain top capacity, then reduce costs.

bruturis commented on Ask HN: Some tips for evaluating intelligent agents? · Posted by u/bruturis

aristofun · a year ago

How do you expect to measure something abstract that is not yet even defined

bruturis · a year ago

By solving a hard problem or providing a new way of attacking some problem an agent can show behavior that mimic intelligence. What kind of problem should this system attack?

Posted by u/bruturis a year ago

Ask HN: Some tips for evaluating intelligent agents?

Deleted Comment

bruturis commented on Array Languages: R vs. APL (2023) jcarroll.com.au/2023/07/0... · Posted by u/todsacerdoti

KarlKode · a year ago

I think you mistyped J code. I don't know any J but what I understood from your comment that it should be something like

  </ +. >/ *.

bruturis · a year ago

You are right, the correct code is .</ +. >./

To understand this you need to know that >. and <. are the min and max functions, and that in J three functions separated by spaces, f g h, constitutes a new function mathematically defined by (f g h)(x) = g(f(x), h(x)). An example is (+/ % #) which applied to a list gives the mean of the list. Here +/ gives the total, # gives the number of elements and % is the quotient.

bruturis commented on Array Languages: R vs. APL (2023) jcarroll.com.au/2023/07/0... · Posted by u/todsacerdoti

kqr · a year ago

> So if floor is <. you can guess what will be the symbol for roof.

Based on the examples, no, I cannot. It could be either of <: and >.

bruturis · a year ago

You are right, both are good options, the author of J chose >. for ceiling and >: for greater than or equal.

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KarmaCake day14March 11, 2024View Original