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#darknet

3 posts3 participants1 post today

Darknet/YOLO has complex code to calculate IoU and several variations on the IoU algorithm.

I'd like to remove all that code and use OpenCV cv::Rect2f instead. I ran some tests with the following:

float result = 0.0f;
const float r_intersection = (r1 & r2).area();
if (r_intersection > 0.0f)
{
const float r_union = (r1 | r2).area();
result = r_intersection / r_union;
}
return result;

Tests show this code is faster than the existing C spaghetti code. #Darknet needs unit tests. #cpp

I have code changes that have turned into a big mess. I cannot commit the entire thing, nor do I want to dismiss all these changes and start over. I need to pick it apart line by line and keep just portions of it.

I hate that this change turned into something more complicated than it should have. #Darknet #YOLO #cpp

Fixed several things over the last few days related to Darknet/YOLO running on multi-GPU devices. Gained access to a 4-GPU training rig at University of Florida. Thank you for getting me access so I could debug the problem.

Among other things, people with multi-GPU training rigs no longer have to stop-and-restart training after burn-in.

Specific fix University of Florida wanted had to do with a bad learning rate modification that would corrupt the weights. #Darknet #YOLO #NVIDIA

🗞️ Die News des Tages von meinem gestrigen #Mastodon-Feed – vorgelesen als #Podcast zur schnellen Übersicht. 🎙️

Das #Transkript, die Links zu den #Nachrichtenmeldungen und die Karte mit den Hörerregionen findet ihr in den #Shownotes.

🗺️ Schreibt mir gern Euren Hörerstandort, wenn ihr (anonym) mit auf die Karte möchtet.

tino-eberl.de/podcast/die-mast

#Atomkraftwerke #Darknet #Umwelthilfe, #Energiewende #Klimapolitik #Koalitionsvertrag #LEAG #NASA #Naturgefahrenportal #Raspberry #Security, #Stadtbäume

Tino Eberl · Die Mastodon-News des Tages als Podcast vom 12.04.2025
More from Tino Eberl

Bei einer Analyse wurden #Zugangsdaten von 241 deutschen #Landtagsabgeordneten im #Darknet gefunden – viele davon im Klartext.

Besonders brisant: Offizielle #Mailadressen wurden auch für private Dienste wie #Pornoportale genutzt. Die #Cybersicherheit leidet unter schwachen Passwörtern und fahrlässigem Umgang mit sensiblen Informationen.

zdf.de/nachrichten/panorama/kr

ZDFheute · Passwörter deutscher Politiker im Darknet aufgetauchtBy Oliver Klein

Deep dive into some Darknet/YOLO code. What should be a random value doesn't appear to be very random. Just noticed it is always showing up the same way in the logs. Looked up the code, and I found this:

float rand_coef = 1.4;

Hmmm. That would explain it... #Darknet #YOLO

Darknet/YOLO has a custom-written "list" structure in the old C codebase which is used in several locations. The linked lists are converted into massive linear arrays so they can be referenced in a random manner.

Tonight I *finally* started converting all that code to std::vector. I've wanted to do this for a while. Going to be much cleaner, easier to maintain, and I'll be certain we have no memory leaks. #Darknet #YOLO #c #cpp