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Computer Science

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Computation Is All Around Us, and You Can See It if You Try

June 12, 2024

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

Cryptographers Discover a New Foundation for Quantum Secrecy

June 3, 2024

Researchers have proved that secure quantum encryption is possible in a world without hard problems.

AI Needs Enormous Computing Power. Could Light-Based Chips Help?

May 20, 2024

Optical neural networks, which use photons instead of electrons, have advantages over traditional systems. They also face major obstacles.

Computer Scientists Invent an Efficient New Way to Count

May 16, 2024

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

Game Theory Can Make AI More Correct and Efficient

May 9, 2024

Researchers are drawing on ideas from game theory to improve large language models and make them more consistent.

Scientists Find a Fast Way to Describe Quantum Systems

May 1, 2024

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.

Q&A

Does AI Know What an Apple Is? She Aims to Find Out.

April 25, 2024

The computer scientist Ellie Pavlick is translating philosophical concepts such as “meaning” into concrete, testable ideas.

Cryptography Tricks Make a Hard Problem a Little Easier

April 18, 2024

Researchers have shown how to find the simplest description of a data set faster than by simply checking every possibility.

How Do Machines ‘Grok’ Data?

April 12, 2024

By apparently overtraining them, researchers have seen neural networks discover novel solutions to problems.

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