Algorithms

Researchers got a better look at the thoughts of chatbots, amateurs learned exactly how complicated simple systems can be, and quantum computers passed an essential milestone.

Dijkstra’s algorithm was long thought to be the most efficient way to find a graph’s best routes. Researchers have now proved that it’s “universally optimal.”

Researchers are exploring new ways that quantum computers will be able to reveal the secrets of complex quantum systems.

While devising a new quantum algorithm, four researchers accidentally established a hard limit on entanglement.

Neural networks and other forms of machine learning ultimately learn by trial and error, one improvement at a time.

Computational complexity theorists have discovered a surprising new way to understand what makes certain problems hard.

Computer scientist Lance Fortnow writes that by embracing the computations that surround us, we can begin to understand and tame our seemingly random world.

By making use of randomness, a team has created a simple algorithm for estimating large numbers of distinct objects in a stream of data.

After years of false starts, a team of computer scientists has found a way to efficiently deduce the Hamiltonian of a physical system at any constant temperature.