Abstract: Covariance matrices have proven highly effective across many scientific fields. Since these matrices lie within the Symmetric Positive Definite (SPD) manifold—a Riemannian space with ...

The English We Speak is your chance to catch up on the very latest English words and phrases. In under 3 minutes, we help you stay ahead of the pack by giving you 'must have' phrases that you can use ...

AJ Working Details is back. This time it covers 20 projects selected from the past 10 years of AJ Specification, and split ...