dawnofdusk

8 ms·

61.
by dawnofdusk 1y ago
In actor/critic the actor and critic are normally learned, i.e., their weights are adjusted during the process. The paper is correct that their method is zero-shot, but it doesn't mention that their method is essentially equivalen
62.
by dawnofdusk 1y ago
You can also allow it to be multi-valued and consider a principal branch when needed, the same we do when we discuss roots of monomials in algebra. The two situations are identical (as they must be, because logarithms generalize roots).
63.
by dawnofdusk 1y ago
Cool that his lecture notes are now books! The lack of thermodynamics/statistical mechanics is an unfortunate oversight, however, otherwise one could feasibly use his books exclusively for an undergraduate-level degree program in physi
64.
by dawnofdusk 1y ago
I do quantitative biology now, although my background is in theoretical physics. Biology is fascinating, but ultimately there is a cultural divide between the scientific "language" used in biology and the scientific language of e.
65.
by dawnofdusk 1y ago
It doesn't break down, one just needs the complex logarithm. If you ignore complex numbers it breaks down in both cases. If you allow complex numbers it works in both cases.
66.
by dawnofdusk 1y ago
>The problem with this approach is that, since we were already introduced to exponents and logarithms in algebra but via different definitions, it always left this unanswered question in my head about how we knew these two definitions we
67.
by dawnofdusk 1y ago
Actually historically John Napier discovered the logarithm before Jacob Bernoulli computed e by his compound interest formula. IMO it would be more fruitful to teach the special functions exp(x) and ln(x) just as functions, which is more hi
68.
by dawnofdusk 1y ago
The sequence (1+1/n)^n can be seen as a natural thing to study (indeed, tautologically, because we know that e is a natural thing to study) by various viewpoints. The important aspect however is that the compound interest interpretatio
69.
by dawnofdusk 1y ago
A nice approach (which is also in Po Shen Loh's preprint) is that this limit can be seen as the Euler scheme for solving the differential equation f' = f. This is related to your viewpoint about Lie theory... maybe slightly more d
70.
by dawnofdusk 2y ago
The arxiv preprint linked in this is really good. I'm American so I got my education on e from the compound interest limit which isn't natural at all, as Loh points out. Why should it matter how many times I "split up"
71.
by dawnofdusk 2y ago
>rent is very likely to be correlated with food costs - so, if rent is high, food costs are also likely to be high Not sure I agree with this. It's reasonable to have a model where the mean rent may be correlated with the mean food
72.
by dawnofdusk 2y ago
Obviously not a universal statement. Clearly an American doesn't care about the difference between Domino's and better pizza, but Italians or Europeans do. Just because your standards are low doesn't mean everyone's is.
73.
by dawnofdusk 2y ago
I don't think it makes sense to allow derivatives of a function f to have a larger domain than the domain of f. >which is why they’re defined via limits They're defined via studying f(x+h) - f(x) with a limit h -> 0. But, yo
74.
by dawnofdusk 2y ago
Are there any results about the "optimality" of backpropagation? Can one show that it emerges naturally from some Bayesian optimality criterion or a dynamic programming principle? This is a significant advantage that the "fre
75.
by dawnofdusk 2y ago
Would be really interesting if you could reverse engineer the model which yields 1/phi as the correct answer. Evidently for some non-uniform measure on the onion you could do it. What about for considering the onion as a half-ball? (Al
76.
by dawnofdusk 2y ago
The Nyquist sampling theorem is of course proved by considering a Fourier transform, which is given by an integral, so the relation to integration in general should not be surprising.
77.
by dawnofdusk 2y ago
The content of the book looks really nice, but I'm not sure why one needs a book that explicitly aims to "engage students" and is also targeted at upper-level undergraduates or graduate students. Surely students at this level
78.
by dawnofdusk 2y ago
>when I'm just trying to do some exploratory data analysis Isn't the point to have a unified platform to do exploratory data analysis which can then easily be published? It's not for throwaway Jupyter notebooks. I think th
79.
by dawnofdusk 2y ago
>I do not see the same concept in diffusion models. I believe, Population size = noise dimensionality Population diversity = noise magnitude
80.
by dawnofdusk 2y ago
Didn't know Francis Bach had a blog. For anyone interested in the theory of machine learning, he is definitely one of the leaders.
81.
by dawnofdusk 2y ago
I think our geometric intuition could never be good for a high dimensional object. Consider a sphere in 3D. It's represented by the points which satisfy x^2 + y^2 + z^2 = 1. Because there are only three coordinates, knowing the value o
82.
by dawnofdusk 2y ago
There is no nobel prize for biology
83.
by dawnofdusk 2y ago
Agree completely, being in this field. However, it is weird for the committee to give a prize for theoretical physics without an experiment. It is doubly weird when they already made this "mistake" in 2021 with Parisi, who was the
84.
by dawnofdusk 2y ago
Giorgio Parisi's prize proves the committee gives prizes for theoretical discoveries nowadays. This year's prize is more proof.
85.
by dawnofdusk 2y ago
Bertsekas' textbooks of course, which I think are very well-written and a pleasure to read.
86.
by dawnofdusk 2y ago
The author is an academic, it is important to give proper credit for ideas within reason. Same reason I call F = ma the law of Newton and now the law of my high school physics teacher, even though I learned it first from him. The reason I h
87.
by dawnofdusk 2y ago
The author is a very sharp individual but is there a reason he insists on labelling overfitting as a phenomenon from machine learning instead of from classical statistics?
88.
by dawnofdusk 2y ago
But the performance motivations for removing the GIL seem at odds with this. I feel like the subset of Python users who care about the GIL and the subset who are "non-programmers" are entirely disjoint.
89.
by dawnofdusk 3y ago
Messenger is also down. For some people this is an important means of communication (many young people I know in the US). People may either be in a panic or otherwise cannot coordinate sufficiently the plans they may have had to get to the
90.
by dawnofdusk 3y ago
Paper seems interesting but I don't like the question title. I think the answer to the question would just be that tabular data is not fully in the "big data" regime yet so there is no reason a priori to expect deep NNs to do

More ›