Terezija Semenski

Software Developer 👩🏼‍💻& LinkedIn Instructor @LinkedIn | Sharing insights on AI, Tech, and Math
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[Terezija Semenski @TSemenski]

@heynavtoor Breaking: Learning mathematics and software engineering is more important than ever.
Math is the bridge from software development to software engineering.

It keeps your mind sharp,
and you need it more than ever in the AI era.

[Terezija Semenski @TSemenski]

When people ask me define ML Engineer

[Terezija Semenski @TSemenski]

1 equation. Powers Netflix recommendations. Compresses images. Finds topics in documents. Linear algebra isn't abstract. It's infrastructure. Free roadmap → bio

[Terezija Semenski @TSemenski]

Netflix has 15,000 movies and 200 million users.

That's 3 trillion possible user-movie combinations to search through.

Instead of brute-forcing it, they use one equation from linear algebra: SVD.

Here's how it works 🧵👇

[Terezija Semenski @TSemenski]

Where SVD appears in ML: • Recommendation systems (Netflix, Amazon, YouTube) • Latent semantic analysis • Image compression and denoising • PCA (PCA is just SVD applied to centered data) • Word embeddings • Data preprocessing

[Terezija Semenski @TSemenski]

Did you eat some π today?

I did. Then I ate some more. Then more. It just... kept going.

Infinitely. Send help.

And more pie.

Today is March 14th 2026, so Happy Pi Day!

[Terezija Semenski @TSemenski]

@Math_files A horror story to look for every mathematician

[Terezija Semenski @TSemenski]

@haider1 Can you please share links to studies?

[Terezija Semenski @TSemenski]

@ninja_maths I would love to hear an interview with your students as it seems way too fast pace even for very talented students.

[Terezija Semenski @TSemenski]

52! (52 factorial, you get it by multiplying 52*51*50*49*…*2*1) is a number so absurdly large that if you shuffled a deck every second since the Big Bang, you still wouldn't have repeated a single arrangement.

Math is wilder than fiction.

[Terezija Semenski @TSemenski]

There are more possible chess games than atoms in our galaxy.

But here's what's crazier: there are more ways to shuffle a deck of 52 cards than all of those

chess games combined.

[Terezija Semenski @TSemenski]

@SmitBPatel2 Thanks, I appreciate your feedback

[Terezija Semenski @TSemenski]

Most ML engineers use matrix multiplication every single day.
Only a few of them can explain what it's actually doing. Here's how matrix multiplication REALLY works, explained visually so it finally clicks 🧵👇

[Terezija Semenski @TSemenski]

📌 If you want a FREE ML engineering roadmap :

1. Follow me.
2. Like the post.
3. Subscribe to: https://t.co/Egxy4G1jjl

[Terezija Semenski @TSemenski]

That's matrix multiplication in ML. Given these inputs and these weights, what are the outputs?
Once you see it this way, you'll never forget it.