The density matrix renormalization group method has been extensively used to study the ground state of 1D many-body systems since its introduction two decades ago. In spite of its wide use, this ...

The original version of this story appeared in Quanta Magazine. One July afternoon in 2024, Ryan Williams set out to prove himself wrong. Two months had passed since he’d hit upon a startling ...

Google's using a machine learning technology called RankBrain to help deliver its search results. Here's what's we know about it. Google uses a machine-learning artificial intelligence system called ...

These important questions are often covered here on Search Engine Journal in very useful articles. But it’s important to not just understand what tactics might be working to help you rank. You need to ...