News by Subject Mathematics

When making sense of the massive amount of information packed into an ice core, scientists face a forensic challenge: how best to separate the useful information from the corrupt. Tools from information theory, a branch of complexity science, can quickly flag which segments, in over a million data points, require further investigation.

One transistor, just a pair of inductors and capacitors. Such a simple electronic circuit can become an oscillator with a surprising richness of behavior. However, even more interesting effects become visible if the structure of connections is fractal and shows some... imperfections. Could similar rules explain the diversity and complexity of the human brain dynamics?

Since the arrival of the Asian longhorned tick (Haemaphysalis longicornis) in North America was first reported in New Jersey in early 2018, it has been found in eight other states in the US And, by the looks of a new study comparing North American habitat with the invasive tick's native territory, it shouldn't be a surprise if it shows up in many more.

Researchers at PNNL teamed up to find out if deep learning--a distinct subset of machine learning--can do a better job at identifying clouds in lidar data than the current physics-based algorithms. The answer: A clear 'yes.' The new model is much closer to the answers scientists arrive at but in just a fraction of the time.