Wednesday, February 19, 2025

Quantum processor: Microsoft Majorana 1


Microsoft unveils Majorana 1, the world’s first quantum processor powered by topological qubits - Microsoft Azure Quantum Blog

"the world’s first Quantum Processing Unit (QPU) powered by a Topological Core, 
designed to scale to a million qubits on a single chip."

AI/ML: Overfitting vs Underfitting

Model Fit: Underfitting vs. Overfitting - Amazon Machine Learning



What is Overfitting? - Overfitting in Machine Learning Explained - AWS

Underfit models experience high bias—they give inaccurate results for both the training data and test set. 

On the other hand, overfit models experience high variance—they give accurate results for the training set but not for the test set. More model training results in less bias but variance can increase. 

Data scientists aim to find the sweet spot between underfitting and overfitting when fitting a model. A well-fitted model can quickly establish the dominant trend for seen and unseen data sets.