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Ahmet Inan

@xdsopl.bsky.social

Author of Robot36 and Rattlegram

9 Followers  |  14 Following  |  24 Posts  |  Joined: 12.01.2026  |  1.9151

Latest posts by xdsopl.bsky.social on Bluesky

Code got simpler too:
github.com/aicodix/code...

02.02.2026 08:19 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Done! The new PAC coders now use a rank map instead of frozen bits. That means we can compute the map once and use it for every PAC(N, K) code without a frozen bit array! And just like with the 5G reliability sequence, we can simply filter out a smaller length from a larger RM rule construction. πŸ₯°

02.02.2026 07:58 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Drawing the rest of the owl turned out to be much more convoluted than I imagined it πŸ˜…

01.02.2026 08:45 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Good morning. Let's do this!

01.02.2026 06:34 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Need to write this down before going to sleep: Because we can use the same RM rule construction for each PAC code rate, we only need to give the encoder / decoder the code and message length. That means no more handling of frozen bits, as we can have a reusable sequence under the hood. πŸƒπŸΎβ€βž‘οΈπŸ›Œ

31.01.2026 21:40 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Must be that update I missed. Not connecting the washing machine to the internet was a good move.

29.01.2026 14:08 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
GitHub - xdsopl/smol: Compression of Short English Text Compression of Short English Text. Contribute to xdsopl/smol development by creating an account on GitHub.

Apropos smol: made a compressor for short English text.
github.com/xdsopl/smol

26.01.2026 10:15 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The world is smol 🀣

26.01.2026 09:37 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Vocoder and Synth! πŸ₯°

26.01.2026 08:41 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Looks like you are re-implementing GNU Radio. Way to go!

24.01.2026 12:05 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
24V COB LED lighting glued and soldered overhead, under the cupboard

24V COB LED lighting glued and soldered overhead, under the cupboard

Finally jumped the 24V COB LED lighting wagon from 12V halogen lamps. Soldering overhead from a weird angle is very interesting work .. but it had to be done. The old stuff is refusing to die (just repaired an electronic halogen lamp transformer) but I need more light in the kitchen.

22.01.2026 10:00 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
cinnamon roll torn apart while still steaming hot

cinnamon roll torn apart while still steaming hot

Turned out really good. πŸ˜‹

18.01.2026 20:58 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
cinnamon rolls baked at 160C for half an hour

cinnamon rolls baked at 160C for half an hour

And done! 😊

18.01.2026 20:55 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
cinnamon rolls rose for six hours and are now baked

cinnamon rolls rose for six hours and are now baked

Couple of hours turn into several hours with sourdough instead of commercial yeast. No matter. Now we bake after 6 hours of rising.

18.01.2026 20:06 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
cinnamon rolls rose for four hours

cinnamon rolls rose for four hours

Four hours in, looking good. Let's give it another two hours. Yeah, we are going to bake at 9PM πŸ˜…

18.01.2026 18:31 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
cinnamon rolls before rise

cinnamon rolls before rise

Sourdough cinnamon rolls, mark two! Very high hydration, barely able to handle. Now letting rise for a couple of hours in the warm oven. Fingers crossed! 🀞

18.01.2026 14:16 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
heart shaped box of chocolates

heart shaped box of chocolates

Successive cancellation decoding is a lot like eating a box of chocolates: If you accidentally choose a very flavorful one somewhere in the middle of the consumption, the rest of the chocolates will taste dull.

15.01.2026 17:00 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
GitHub - RFnexus/modem73: TNC frontend for the aiocdix OFDM modem TNC frontend for the aiocdix OFDM modem. Contribute to RFnexus/modem73 development by creating an account on GitHub.

RFnexus took my OFDM modem to the next level:
github.com/RFnexus/mode...

13.01.2026 08:28 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

Hard to see the low-SNR region with a logarithmic scale, so here with a linear scale and a list size of L=128. We see that the normal Polar codes are getting lucky more often and the CRC oracle even helps the PAC codes under list decoding:

13.01.2026 07:35 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Yes, I am as dissatisfied as you are about that chart. Sorry.

12.01.2026 13:16 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Post image

A larger list size makes the list-decoded Polar codes with CRC behave better than the Polarization-Adjusted Convolutional codes in the low SNR regime. Both the PAC and BCH codes don't use an oracle here and I would need to run a simulation for weeks, just to show you the interesting QEF-region.

12.01.2026 13:05 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
a man wearing a helmet is giving the middle finger in front of a sign that says 440 ALT: a man wearing a helmet is giving the middle finger in front of a sign that says 440

Health has returned. Wonder how long it is going to last ..

12.01.2026 12:16 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The honor is all mine! 😜

12.01.2026 10:45 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Exactly the reason why I made it all open source!

12.01.2026 10:16 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

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