Derek Wang

10 posts

Derek Wang

Derek Wang

@4derekwang

Day's js started 😴 Comp Eng @ UWaterloo

Toronto Inscrit le Kasım 2025
23 Abonnements19 Abonnés
Derek Wang retweeté
Nengjia Li
Nengjia Li@nengjiali·
I spent 4 brutal months building a full Stereo Visual SLAM system from scratch in C++17 + CUDA. NO pre-made libraries. NO black-box magic. I just wanted to understand the underlying mechanics behind SLAM. Here’s the intuitive breakdown (the full SLAM pipeline, the math that almost broke me, and the real KITTI footage)👇 cc @aelluswamy your work in this space is a massive inspiration for tackling this from absolute scratch
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Derek Wang retweeté
anirudh bv
anirudh bv@anirudhbv_ce·
I implemented @GoogleResearch's TurboQuant as a CUDA-native compression engine on Blackwell B200. 5x KV cache compression on Qwen 2.5-1.5B, near-loseless attention scores, generating live from compressed memory. 5 custom cuTile CUDA kernels ft: - fused attention (with QJL corrections) - online softmax -on-chip cache decompression - pipelined TMA loads Try it out: devtechjr.github.io/turboquant_cut… s/o @blelbach and the cuTile team at @nvidia for lending me Blackwell GPU access :) cc @sundeep @GavinSherry
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Derek Wang retweeté
Matthew Wu
Matthew Wu@Matthew_Wu_·
My 6-axis robotic arm controller PCB that I designed back in high school. The v2 specs: - 4-layer board, 12A max current - Dual ESP32 + STM32 integration - Custom op-amp servo feedback - Optimized for thermals & signal integrity - Fully validated But getting to this point wasn't easy. I learned a lot the hard way. v1 had major signal integrity issues that forced me to cut traces, add bodge wires, and do a ton of messy rework just to get basic functionality. But that board forced me to learn: power distribution, spacing, layout discipline, and hot loop control. Now that exact stuff is the foundation for the RF + power electronics boards I design at UWaterloo.
Matthew Wu tweet mediaMatthew Wu tweet media
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Derek Wang retweeté
Parsa Ahmadnezhad
Parsa Ahmadnezhad@parsaxa·
cannot fathom how Waterloo students are this locked in. just organized a project building event in uw cs club. damn these waterloo students are cracked. 👩‍💻
Parsa Ahmadnezhad tweet mediaParsa Ahmadnezhad tweet media
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