The Chinese railway system is a complex web of tracks and trains, influenced by many factors. To understand how government rules affect this system, a new approach has been developed. This approach, known as the improved comparative static model, uses clever math tricks to figure out how changes in
Nowadays, computers are way more powerful than before. This has led to some amazing developments in data science. One of these is reinforcement learning, or RL for short. It is a type of machine learning that helps make decisions in complicated situations. It is super useful in healthcare operations
The world is shifting. For decades, the United States has been the main player on the global stage. But times are changing, and this shift is happening right before our eyes. The current U. S. president has been making waves. He has been pushing back against longtime allies and foes alike. Recently
The Department of Health and Human Services (HHS) is backtracking on some of its recent cuts. After laying off 10, 000 employees, Secretary Robert F. Kennedy Jr. revealed that some programs and jobs were terminated by mistake. This news came as a surprise to many, including Erik Svendsen, the direct
NATO allies are in a tough spot. The US wants them to spend more on defense. This is not new. But now, the US is pushing for a big increase. They want NATO countries to spend 5% of their GDP on defense. This is a lot more than the current target of 2%. Most NATO countries are already struggling to m
The diplomatic scene in Brussels was tense as Marco Rubio, the Secretary of State, arrived for a NATO foreign ministers' meeting. The atmosphere was thick with worry over the Trump administration's policies towards Europe. Key issues included the ongoing conflict in Ukraine, the delicate relationshi
AI models are essentially smart prediction machines. They learn from vast amounts of data, like books, movies, and TV shows. When they create something, they're just pulling from what they've already seen. They don't come up with anything truly new. This is how they can write about Greek tragedies o
In the heart of Samburu County, Kenya, a unique training program took place. The goal? To teach dogs to spot cheetah poop accurately, even when surrounded by similar-looking samples from other big cats. This is no easy task. Dogs are often trained with limited samples and then expected to generalize
China's military recently announced a series of joint exercises around Taiwan. These drills involve the army, navy, air force, and rocket force, all working together from various directions. The goal is to test their ability to work as a team and to send a strong message to those who support Taiwan'
Stanford University is making waves in the football world with a fresh face at the helm for the 2025 season. Frank Reich, a seasoned NFL coach, has signed on for a temporary stint as the interim head coach. This move comes after a tumultuous period for the program, marked by the dismissal of former
