hasley

The Cramér-Rao Bound (CRB) lets one compute the minimal mean-squared error that any unbiased estimator (algorithm) can achieve. Unfortunately, you need to know the probability density function (PDF) t…

Of you prefer an even more entertaining approach and a very gentle introduction into the topic, I recommend the comic "Logicomix" which tells Russel's journey (though not historically c…

Today, far right-wing people in Germany use fraktur on shirts, cars etc. - even though it were the Nazis who abolished it.

One of the most exciting things about LLMs for me is to have someone with which I can discuss about technical/scientific/engineering things. Since usually I do not have a human at hand (or d…

But how does this gas or new gas get back into the liquid resulting in new pressure?

I am not doubting the theory of the gas getting out of the liquid. I was just referring to the "urge" to crack my fingers. I thought, maybe this instant relaxation (with additional auditive …

I also crack my fingers in the morning, over the day, and before sleeping. I also feel this "tension". But I am not sure whether it is a real "tension" or something my brain makes …

That is something I observed too: When you build a tool (physical or software) or an API (web or library) it should be easy to use. The easier it is to use the higher the probability that people will …

I, as an engineer, shall work for a mission and not (so much) for money. But as soon as the mission can possibly be completed without me using the latest shiny AI tool, it is okay for the company to g…

Yes, it is a good fit when a customer is supposed to use some functionality one has implemented but shall not see the implementation.

In cases where I assume that enough test coverage exists, I simplify code that I am currently working on or which I need to read very often. This way I have already replaced a lot of for-loops by rang…

A tool to record exact quotes of politicians with hashes and permalink - starting with the German far-right party AfD.

Interesting, thanks!

I suspect with "orthogonalization" they mean to find vectors that form an orthogonal bases (same subspace) for the vectors in the source matrix. I wonder what would be the result if they use…

Can't a system be DDoS'ed with wrongly signed JWTs as well? Is signature checking (much) cheaper than finding an opaque session ID in a database?

The Cramér-Rao bound (CRB) is a fundamental bound in estimation theory. "Estimation" refers here to finding the parameters of a random process. The CRB shows that for estimators (algorithms)…

In PowerPoint, I am a happy user of IguanaTex [1]. There are also some other PlugIns like TeXsword. But I have not tested them. And newer MS Office versions seem to support Latex macros directly. [2] …

Electromagnetic waves can exist in vacuum. No (conductive) air is required.

Agree. I am using type hints in Python as much as possible for my hand-coding. And it catches a lot of bugs (especially during code refactoring) that I would not have noticed so easily.

If you define frequency as the derivative of the phase with respect to time, then you also have an instantaneous frequency which (at least formally) also has Hz as unit - even though it does not neces…

Yeah, that is really something that bothers me from time to time. For instance, in communications we count symbols per second and people still use the unit Hz. But, as it was said before, Hz is revela…

If one needs to describe (and maybe compress) functions or data on a sphere, spherical harmonics are really a thing. An alternative would be to construct a new function (or matrix) that is not only pe…

I was thinking of X11 as well, but did not feel old - until I read your text. ;)

The "zero copy substring" in C is in general not a valid C string since it is not guaranteed to be zero-terminated. For both languages one could define a string view as a struct with a point…

Because you may have fun working in a scientific environment and doing research. I liked my job at the university - independent of the final PhD. I enjoyed what I was doing. Most of the time I also en…

I did my PhD with Octave. Sure, I did not have this nice convex optimization toolbox. But I had everything else I needed and did not need to wait because people arrived earlier in the lab and grabbed …