daww

4 ms·

1.
by daww 1mo ago
haha definitely, PPO is not the most sample efficient method for sure
2.
by daww 2mo ago
Hi HN, Andrea (the author) here. This is the last post of my series on quadcopter simulation and (Reinforcement Learning based) control. This post is less educational that the other ones and more like a recipe, hope it'll be useful&#x2
3.
A recipe for drone racing with reinforcement learning(mrandri19.github.io)
28 points by daww 2mo ago|4 comments
4.
by daww 4mo ago
Hi, thanks! Love your product, it's been incredible for debugging simulations as well as looking at individual policy rollouts (instead of e.g. static videos) to design better rewards/environments
5.
by daww 4mo ago
Hi HN, Andrea (the author) here. I'm continuing my series of blog posts on quadcopter simulation and (Reinforcement Learning based) control. This one is the second in the series, following my previous planar/2d quadcopter post. Ne
6.
Simulating a 3D Quadcopter from Scratch(mrandri19.github.io)
5 points by daww 4mo ago|3 comments
7.
by daww 6mo ago
Yeah, I did. I didn't implement disturbances like wind, so a very simple PD position controller was enough for stabilization or simple trajectory tracking. I won't focus too much on (position) control as my controller will be RL-b
8.
by daww 6mo ago
You are technically correct - the best kind of correct. But yeah, think of it as a "slice" of a quadcopter along one of its principal axes. Writing the 3D blog post right now.
9.
by daww 6mo ago
Good question, haven't really thought about modeling complex effects besides prop aerodynamic drag. If I were to start, I'd probably look at the model described in the "Aerodynamic forces and torques" section of "Ch
10.
by daww 6mo ago
Author here. I've spent the last six months replicating the paper "Champion-level drone racing using deep reinforcement learning" and now I'm writing down the blog posts I wish I had along the way. Any feedback is welcom
11.
Simulating a 2D Quadcopter from Scratch(mrandri19.github.io)
31 points by daww 6mo ago|11 comments
12.
Probabilistic Programming Language in 70 lines of Python(mrandri19.github.io)
4 points by daww 5y ago|0 comments
13.
Bayesian linear regression with conjugate priors(mrandri19.github.io)
1 points by daww 6y ago|0 comments
14.
Tint: Google's new WebGPU shading language(docs.google.com)
6 points by daww 7y ago|0 comments
15.
by daww 7y ago
Thanks!
16.
Ask HN: How to release research paper code?
2 points by daww 7y ago|4 comments
17.
Modern Text Rendering with Linux: Antialiasing(mrandri19.github.io)
2 points by daww 7y ago|0 comments
18.
by daww 7y ago
Interesting question, from my understanding Pathfinder is only concerned with rendering so it doesn't completely replace FreeType: you still need some software to extract the curves path data from the font file. This can be done in rus
19.
Modern Text Rendering with Linux(mrandri19.github.io)
111 points by daww 7y ago|18 comments
20.
by daww 7y ago
Absolutely, Subpixel AA, Kerning, Ligatures, Gamma Blending, and Emojis will be treated
21.
by daww 7y ago
Thanks :) I've used what was available on the latest ubuntu lts. FreeType functions return 0 (FT_Err_Ok) on success or a specific value for each function, but yes I agree that error handling could be better, maybe at the expense of ter
22.
by daww 7y ago
I agree that it's an interesting topic. On reddit one of the authors of dear imgui has some interesting thought on it: https://www.reddit.com/r/programming/comments/cfxltf/modern_...
23.
Modern text rendering with Linux: Part 1(mrandri19.github.io)
141 points by daww 7y ago|24 comments
24.
DMD 2.087.0 Released(dlang.org)
2 points by daww 7y ago|0 comments
25.
by daww 7y ago
Looks like something I did some time ago[0], nice to see that this space is being explored. Wikum[1] from MIT's CSAIL is also an interesting alternative. [0] https://mrandri19.github.io/comments-as-a-graph/?thread=
26.
Ask HN: Which are the most underrated but useful mathematics fields?
4 points by daww 8y ago|0 comments
27.
Alessio Figalli wins 2018 Fields medal prize(quantamagazine.org)
4 points by daww 8y ago|0 comments
28.
Show HN: Check which NPM packages will break if one gets removed(howmuchofnpmcanyoubreak.ml)
1 points by daww 8y ago|0 comments
29.
Ask HN: Should I join a startup or do open source work to get an internship?
2 points by daww 8y ago|0 comments
30.
Show HN: View HN/Reddit/4chan comments as a graph(mrandri19.github.io)
1 points by daww 9y ago|0 comments

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