Max Headroom @Joel@social.cleverlibre.org

@Clementulus Because she's wiser than we are.

@lmedinar What is the sample rate for these plots? Or, stated differently, what are the time units for the X axis?

There's a related question I've struggled with - maybe you can help: How can one efficiently normalize a multi-fermion wave function composed of a determinant of single particle orbitals which are not orthogonal to each other?

#quantumchemistry #CondensedMatterPhysics
#physics

I'm impressed by a Google Maps feature I just used for the first time. Walking around Manhattan, and it complained that location accuracy was low. Usually that's followed by it instructions for calibrating the accelerometer, involving a complex pas-de-deux with your phone.

This time it just asked me to point the camera at... basically anything. It instantly recognized my position from a random view on a random street.

While clearly it knew my approximate location, so the search space isn't unlimited, there could be different cars going by, etc. etc., not to mention an arbitrary field of view. I'm impressed.

Anyone have any details on how this computation is done?

#visual #algorithms #geolocation #Google

@lmedinar I think you would learn a great deal by taking a quick look at the frequency spectrum of your input signal. There appears to be a noise source at a frequency around half your sample rate. You might be able to identify and remove it at the source, or remove it digitally with a notch filter.

Find a free DSP app and do a Fourier transform on the unfiltered input data to see what's going on.

@lmedinar What are we looking at here? Is this a time-domain plot? Which signal is the filter input?

@imabuddha Thanks!

Is there an easy way to filter my feed(s) to include only toots written in English?

@CoramDeo Thanks!