Zachary Lipton
zacharylipton.bsky.social
Zachary Lipton
@zacharylipton.bsky.social
Cofounder & CTO @ Abridge, Raj Reddy Associate Prof of ML @ CMU, occasional writer, relapsing 🎷, creator of d2l.ai & approximatelycorrect.com
May 10, 2025 at 1:20 AM
We even found that sometimes with deep nets imputing 0 is better than running a fancy imputation algorithm because it’s more obvious which values are imputed so there’s less destruction of information.
April 23, 2025 at 8:29 AM
Yeah, it makes sense, it gives you all the info you have. A powerful enough model can learn any reasonable imputation strategy implicitly.
April 23, 2025 at 8:27 AM
Taking me back to 2016 baby. proceedings.mlr.press/v56/Lipton16...

In some clinical tasks the indicators are so useful, they’re almost as informative as the features themselves.
proceedings.mlr.press
April 23, 2025 at 7:59 AM
Thus the “controversiality”. Point is, hard to imagine any non-political reason to get any other compact EV than a tesla. Seems like nobody is even close, which i found surprising given the growing market.
March 7, 2025 at 6:20 AM
what sort of model was involved in the retrieval step?
February 16, 2025 at 11:30 PM
...you’re thinking about infrastructure, user experience, orchestration, governance, and automation at scale. That’s a different game altogether."
February 7, 2025 at 8:24 PM
per ChatGPT:

"AI is no longer just “machine learning at scale.” It’s a full-stack engineering and economic transformation, where ML is just one piece of the puzzle. If you’re building modern AI systems, you’re thinking beyond ML—...
February 7, 2025 at 8:24 PM