Darknet – A neural network framework written in C and CUDA(github.com)

63 pointsby ZeljkoS8 tahun yang lalu19 comments

Darknet – A neural network framework written in C and CUDA

https://github.com/pjreddie/darknet

19 comments

joshvm8 tahun yang lalu

I've used darknet quite a bit over the last few months. I wouldn't recommend using it for a serious project, unless you happen to need an extremely fast off-the-shelf object detector. The other exception is if you need a fast convnet running on a Pi - Tiny Yolo will do about 1.2FPS with an optimised fork (using nnpack). Other than that you could just buy a Neural Compute Stick. Yolo itself is pretty great - it's very fast and is accurate enough for a lot of things.

The original repo isn't really updated, and while AlexyAB's fork is much improved, it's still a pain to use.

- If you make mistakes, things fail silently. This is by far the biggest problem. Train/test is difficult to get right because it's very difficult to figure out where exactly you've messed up.

- Support for images is arbitrary. Although you can compile with OpenCV, there are internal glob functions which simply ignore certain image types (I had to recompile it with support for TIFF, for example).

- Bounding boxes are stored in an awkward format, which is easy to get wrong. It's referenced to the centre of the box, stored as a fraction of the image width.

- Logging is very basic. Alexey added a loss graph, but that's about it. If you restart training from a checkpoint, you only get a loss curve from where you restarted.

- Retraining on your own data can seem like dark magic. There's a lot of "copy this config file and edit these numbers" and if you get it wrong, you've wasted a day training.

If you need to use Yolo, I'd recommend looking at reimplementations in more mature frameworks like pytorch (e.g. https://eavise.gitlab.io/lightnet/)

therein8 tahun yang lalu

Looking at the resume, I noticed I've seen his resume shared on HN before as an example of an unconventional looking resume.

Anybody remember the resume with the ponies?

https://pjreddie.com/static/Redmon%20Resume.pdf

gbear6058 tahun yang lalu

Here are a couple instances of it being discussed before:

https://news.ycombinator.com/item?id=17500616

https://news.ycombinator.com/item?id=15060129

petee8 tahun yang lalu

The License 'stack' made my morning, thank you:

"THIS SOFTWARE LICENSE IS PROVIDED "ALL CAPS" SO THAT YOU KNOW IT IS SUPER SERIOUS AND YOU DON'T MESS AROUND WITH COPYRIGHT LAW BECAUSE YOU WILL GET IN TROUBLE"

avinassh8 tahun yang lalu

The license 'stack' joke because of neural networks?

petee8 tahun yang lalu

no pun was intended; because there is an actual stack of license files for whatever license you want to pretend applies, as its public domain.

cabernal8 tahun yang lalu

AlexeyAB's fork [0] has a ton of improvements on the original implementation linked here.

[0] https://github.com/AlexeyAB/darknet

syntaxing8 tahun yang lalu

FYI, this is the same person(people?) that came out with the YOLO Objection Detection classfier.I haven't used Darknet before but the Tiny Darknet seems very interesting and I might use that in the future for my small projeccts

esotericn8 tahun yang lalu

This is the first I've heard of this project. There are some rather majestic words and images on that page.

A particular favourite: https://www.youtube.com/watch?v=VOC3huqHrss

mr_woozy8 tahun yang lalu

really, "darknet"? Couldn't have used a better name?

TomMarius8 tahun yang lalu

I think it's a good attempt at redefining a stupid term.

wpdev_638 tahun yang lalu

It would be great if these AI/neural frameworks targeted opencl so it would be platform agnostic. AMD/Intel/Arm makes so very cost effective GPUs that run everywhere.

symlinkk8 tahun yang lalu

These commit messages, lol.

jazoom8 tahun yang lalu

Not very useful but since it's his own project he can do whatever he likes. It looks like he's having fun, which is great. Except his beehive died. That kinda sucks.

lszu8 tahun yang lalu

Also check out the licenses...

lucb1e8 tahun yang lalu

That title is very non-descriptive or, at worst, misleading. I thought it would be about an Internet overlay network or something. Repository's description is Convolutional Neural Networks, so perhaps the title could be "Pjreddie/darknet: Convolutional Neural Networks"? (Not sure if pjreddie is supposed to be well-known, there is probably a reason OP added it to the title.)

sctb8 tahun yang lalu

Thanks, we've updated the title from “Pjreddie/darknet”.

nine_k8 tahun yang lalu

> Darknet is an open source neural network framework written in C and CUDA. It is fast, easy to install, and supports CPU and GPU computation.

It apparently lacks any ergonomic scripting language bindings, which makes experimentation harder (than with tensorflow).

Or, if it does, it should list them right in the readme.

freeone30008 tahun yang lalu

It's easier to use than CuDNN directly, and not having a python dependency can be considered a feature.