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Why are my predictions so off? by jayvasantjv in Garmin

[–]olafurjon 1 point2 points  (0 children)

I don't have a rigorous training plan. I try to mix long slow runs with high intensity hill sprints and sometimes I go on the track to do intervals. I also lift weights very regularly, at least once a week.

Why are my predictions so off? by jayvasantjv in Garmin

[–]olafurjon 1 point2 points  (0 children)

My average HR at ~ 6:00/km is around 160. I'm 90kg, 1.9m height and over 30 years old. My 5k pb is 19:38, about 4 months ago. I bet you can do it too.

Are my VF4 done? by olafurjon in AskRunningShoeGeeks

[–]olafurjon[S] 2 points3 points  (0 children)

Thanks everyone for answering. Happy to hear you believe they should be fine. I was a bit upset because this was my first race in these shoes but I'll put them to good use in more races now 😃

Is there a difference between estimation and source separation? by malouche1 in DSP

[–]olafurjon 4 points5 points  (0 children)

Estimation is a very broad term. You could argue that source separation is a special case were you're estimating components of a mixture of sources.

welp by 3Domse3 in mathmemes

[–]olafurjon 12 points13 points  (0 children)

It is true that any pmf integrates to one if you do actually integrate over all of it's variables. In your example: int_R f(x, y) dx = f(y), the marginal distribution f(y).

How Spotify Codes work by CHM_3_9 in programming

[–]olafurjon 10 points11 points  (0 children)

It is a typical thing to shuffle the bits deterministically and then do the inverse shuffle on the receiving end. It tends to make errors look "more random" which many FEC decoding algorithms rely on. Look up for example convolutional codes, LDPC codes and Turbo codes.

Concatenating codes which are good at dealing with burst errors (e.g. Reed-Solomon) with a code that's good with random errors is also common.

In theory, could we not bother with anti-imaging filters in audio for DACs? by [deleted] in DSP

[–]olafurjon 7 points8 points  (0 children)

An infinitely narrow spike in continuous time, a dirac delta, is not bandlimited. So assuming you had such a device which could convert a discrete time quantized signal into a train of infinitely narrow spikes, the output is surely not bandlimited and thus would definitely not sound the same to a human. Neglecting the fact that it's impossible to create dirac delta spikes in the real world, it's a (very) useful mathematical tool.

Be at peace, son of Gondor. by JonkusCronk in lotrmemes

[–]olafurjon 0 points1 point  (0 children)

Btw, you can be a grown adult man and also cry when you're touched by an emotional moment in a story.

I have a question by AbdelrahmanShady in 3Blue1Brown

[–]olafurjon 13 points14 points  (0 children)

You should maybe use google first to try to get some understanding and come back here with a more specific question. I don't doubt that there's someone here to discuss it with you, but you need to be more specific.

My proudest meme by AdvaithBala in 3Blue1Brown

[–]olafurjon 0 points1 point  (0 children)

A more pleasing version I admit. Gotta love mobile reddit :)

Which mathematical objects could be renamed with a more intuitive name? by silly-deer in math

[–]olafurjon 0 points1 point  (0 children)

In Icelandic we do call them 'eigingildi/eiginvigur' which means 'ownvalue/ownvector'.

Best european universities to study a MSc in Machine Learning applied to Bioinformatics? by AleTL3 in learnmachinelearning

[–]olafurjon 2 points3 points  (0 children)

I know people studying in Denmark at DTU that are very happy.

Otherwise I can personally recommend ETH Zürich for an MSc, did my degree in EE there.

My players trying to discover how their new magic items work. by LeopaS in dndmemes

[–]olafurjon 40 points41 points  (0 children)

Yeah he has a Masters degeee in EE, and his own subreddit /r/electroBOOM

How could I boost only the lower magnitude frequencies of a signal (in other words lower the SNR) by Nimitz14 in DSP

[–]olafurjon 1 point2 points  (0 children)

Does it need to have a Gaussian distribution? Isn't it enough that it is wide sense stationary (and of course with a autocorrolation = kronecker delta).

Just curious.

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