Daniel Nissani

Data scientist, educator, advocate, leader. Always looking for ways to make the world a little better.

[Daniel Nissani @NissaniData]

Trying to make vibe coding safer, while reducing the amount of errors agents make.

[mozilla.ai @MozillaAI]

Coding agents can share fixes in seconds. That speed also creates risk.

We’ve partnered with Lauren Mushro (@laubenjam), Human-Centered Design Lead in Responsible AI at BMO, to bring VIBE✓ into cq and help review knowledge units before they enter shared memory.

See how it works: https://t.co/hluGQZ1N32

[mozilla.ai @MozillaAI]

Octonous is now in open beta.

What started as a small closed beta turned into hundreds of conversations about approvals, transparency, memory, and reducing busywork across connected apps.

This is only the beginning.

Try Octonous: https://t.co/bBasgSH8Kp

[James Tanton @jamestanton]

TRICK QUESTION:
A wheel of radius 1 rolled along the border of a square (no slipping). It underwent one full rotation when it returned to start.
What is the perimeter of the square?

[Grant Sanderson @3blue1brown]

Here's the challenge mode for all you math whizzes. Sample three numbers x, y, z uniformly at random in [0, 1], and compute (xy)^z. What distribution describes this result?

Answer: It's uniform!

I know how to prove it, but haven't yet found the "aha" style explanation where it feels expected or visualizable. If any of you have one, please send it my way and I'll strongly consider making a video on it.

h/t @alonamit for this one.

[Grant Sanderson @3blue1brown]

On a recent trip to the UK, @standupmaths shared this delightful little probability fact with me and asked if I might animate an explanation for a video of his. It's a fun one!

See his full video with shenanigans relating this to dice and more. https://t.co/DpxkVyYVFY

[James Tanton @jamestanton]

This classic inheritance puzzle usually solved by borrowing & returning 1 sheep. It comes from
17=18*(1/2 + 1/3 + 1/6).

Now 5=6*(1/2 + 1/3) gives a puzzle with two daughters; 27=28*(1/2+1/4+1/7+1/14) one with four,
still transferring 1 sheep.
Example for 5 daughters? 6? 7?

[Andrew Carr 🤸 @andrew_n_carr]

OpenAI
Google
Matt from the IT department
Meta
Anthropic

[James Tanton @jamestanton]

Finished Volume 2 and now starting Volume 3. Marching my way through college algebra content in the way my brain thinks about it all.
Feedback always so appreciated.
https://t.co/gPEvhQhxhK
@GlobalMathProj

[Grant Sanderson @3blue1brown]

Excerpt from a video I just posted on YouTube (about the multilayer perception layers in a transformer, and how LLMs may store facts).

[Steven Strogatz @stevenstrogatz]

For anyone curious about nonlinear dynamics and chaos, including students taking a first course in the subject: My lectures are freely available here. https://t.co/y5n3S9nXCx

[andrew gao @itsandrewgao]

🤯@openai did what?

[Zico Kolter @zicokolter]

I'm excited to announce that I am joining the OpenAI Board of Directors. I'm looking forward to sharing my perspectives and expertise on AI safety and robustness to help guide the amazing work being done at OpenAI.

[OpenAI @OpenAI]

We’re sharing the GPT-4o System Card, an end-to-end safety assessment that outlines what we’ve done to track and address safety challenges, including frontier model risks in accordance with our Preparedness Framework. https://t.co/xohhlUquEr

[Kamala Harris @KamalaHarris]

I am proud to announce that I've asked @Tim_Walz to be my running mate.

As a governor, a coach, a teacher, and a veteran, he's delivered for working families like his.

It's great to have him on the team.

Now let’s get to work. Join us:
https://t.co/W4AE2WlMTj

[Yu-Xiang Wang @yuxiangw_cs]

Excited to share our latest work that shows "Large Step Size Training Cannot Overfit" in univariate ReLU nets 🔥🔥🔥 https://t.co/eFHXlJE9yT
For the first time, we understand how *flatness*, *edge-of-stability* and *large stepsize* imply (near-optimal) generalization. 🧵1/

[James Tanton @jamestanton]

Okay ... Getting there. Twelve chapters now done. I changed the title because this project isn't really about College Algebra alone.
ARITHMETIC, ALGEBRA, and RADICAL COMPREHENSION OF MATH
(Maybe too gutsy!)
Made it clearer too what each chapter contains.
Check it out: https://t.co/jTnCRdsZRK
Enjoy! And, as always, feedback so appreciated.
@GlobalMathProj @AIMathCommunity #iteachmath

[Andrew Carr 🤸 @andrew_n_carr]

In 2017 I was told the number one skill to practice as a deep learning researcher was to be able to reimplement and reproduce papers from scratch.

In 2024 I tell people the same.

[Daniel Nissani @NissaniData]

@johnpdickerson @cornell_tech @ang3linawang Congrats! Huge news!

[John P Dickerson @johnpdickerson]

NYC is getting another rising star early-career faculty member, this time @cornell_tech with @ang3linawang! Interested in building and analyzing sociotechnical AI/ML and algorithmic systems? Work with @ang3linawang to push this important field forward.

[Steven Strogatz @stevenstrogatz]

To all my followers: I really can’t tell you how excited I am by this book. It’s one of the most wonderful things I’ve read in a very, very long time.