rcthompson

6 ms·

31.
by rcthompson 3y ago
Unless I'm missing something, there is no causal analysis in this study.
32.
by rcthompson 3y ago
I haven't read the whole paper yet, but so far it looks like there's no causal analysis, only associative, so anyone speculating about causality based on these results is putting the cart before the horse. By far the more likely e
33.
by rcthompson 3y ago
> A better fix would be to just make transit more attractive, not make driving less attractive. I agree, but at least this makes them relatively correct, if not absolutely.
34.
by rcthompson 3y ago
For me at least, it will also make driving to Manhattan and parking actually more expensive than taking the train, which it should be. The fact that both options are currently about the same price for me has had me thinking that something s
35.
by rcthompson 3y ago
I'm pretty sure it's a kernel thread, not a process, since it's part of the filesystem. So it can't be renice'd.
36.
by rcthompson 3y ago
Writing to a corrupted filesystem by default is bad design. The corruption could be caused by a hardware problem that is exacerbated by further writes, leading to additional data loss.
37.
by rcthompson 3y ago
> Dynamically-typed languages similarly should be able to choose enum values at runtime in many cases. I wonder, is choosing random enum values at runtime more secure against Rowhammer than just having fixed values that were chosen rando
38.
by rcthompson 3y ago
Well, that quote from Wikipedia says the published paper didn't include a working exploit. That might be true even if a working exploit was available after the paper was written and submitted but before it was published. (I don't
39.
by rcthompson 3y ago
Couldn't compilers be configured to use such values for for any enum type? And maybe even auto-insert the appropriate check in the final unchecked else anywhere that enum type is otherwise exhaustively checked?
40.
by rcthompson 3y ago
What happens when ChatGPT apologizes instead of answering your question about whether the text is an apology or a product description?
41.
by rcthompson 3y ago
Random compression-related story time: I once had to run a program hundreds of times and capture all the stack traces to help the author catch a stochastic bug. I zipped up all the stack traces and sent the resulting file to the author. The
42.
by rcthompson 3y ago
When you do `f(x=5)`, x doesn't get set to 5 anywhere you can see (it happens inside the body of f, which you are treating as a black box). So logically, in the context of the code that's calling f, it's not an assignment ope
43.
by rcthompson 3y ago
Yeah, but it's a single-use placeholder. AFAIK It can't do things like: x %>% set_names(., str_c("X_", names(.)) All the underscore does is let you pass the piped argument as a named argument instead of the f
44.
by rcthompson 3y ago
Because in that context the equals sign makes sense, e.g. "Call function F with X equal to 5."
45.
by rcthompson 3y ago
I use magrittr pipes pretty much exclusively because of the extra features relative to the native pipe, but I also respect the R devs' decision not to add those extra features to the core of the language. The magrittr pipe adds additio
46.
by rcthompson 3y ago
R's indexing is not only 1-based, it's inclusive on both ends. So indexing from 3 to 5 actually gets you elements 3, 4, and 5. I've programmed a bunch with both R and 0-based languages and I greatly prefer R's way of doi
47.
by rcthompson 3y ago
I actually love that R uses '<-' for assignment. Assignment is an inherently asymmetric operation: it takes the RHS and assigns it to the LHS, and the arrow visually indicates this. It feels more correct to have a visually asym
48.
What will UMAP do? What will t-SNE do? [video](youtube.com)
2 points by rcthompson 3y ago|0 comments
49.
by rcthompson 3y ago
Ok, will do!
50.
by rcthompson 3y ago
We will be posting it on a preprint server when we're ready to submit it to journal review, hopefully some time in February (but who knows, publishing timelines are murky at the best of times). The title will be something along the lin
51.
by rcthompson 3y ago
I'm in the middle of such a story right now. I'm doing research on a data set of COVID-19 hospital patients with multiple blood samples over time from each patient. The obvious thing we want to do with this data is to line up all
52.
by rcthompson 3y ago
That's not the point. The point is that "N people can't be wrong" is not a valid argument for any value of N.
53.
by rcthompson 3y ago
MITM, of course, stands for Martian In The Middle.
54.
by rcthompson 3y ago
Looking at the commit diff, I don't see anything that necessitates a hard fork. The changes are all in elisp, not compiled C code. It looks like just evaluating the old version of register.el (perhaps with a few compatibility changes)
55.
by rcthompson 3y ago
Yes, that's true, legal requirements definitely become much more of a factor the closer you get from research to product.
56.
by rcthompson 3y ago
I realize this is nitpicking a minor point in your comment, but I don't agree with your characterization of RCTs in medical research as being primarily constrained by laws and regulations. Any time I've discussed research on human
57.
by rcthompson 3y ago
I think the point of the demo is to start with something dead simple that "everyone" knows and get more complex with each example.
58.
by rcthompson 3y ago
They don't come out and say specifically what they're doing, but: > I have to accept the new terms to continue paying for it, which we have to do to keep legally using Unity, which we have to do to finish our game – because by
59.
by rcthompson 3y ago
It seems weird to me that so many of the "falling apart" simulations described in the intro involve planets crashing into each other. I would expect direct collisions to be an extremely rare "failure mode", even once the
60.
by rcthompson 3y ago
The point is that the upper bound model is much, much easier to run, since you don't have to do any complicated modeling of how much of the substance people are actually exposed to, you just assume the worst case. If this model already

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