A DNA Computer Just Computed Square Root of 900

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DNA strand

Researchers at the University of Rochester created a computer that uses 32 DNA strands to store and process information. It can calculate the square root of square numbers 1, 4, 9, 16, 25 and so on up to 900.

To start, the team encodes a number onto the DNA using a combination of ten building blocks. Each combination represents a different number up to 900, and is attached to a fluorescence marker.

The team then controls hybridisation in such a way that it changes the overall fluorescent signal so that it corresponds to the square root of the original number. The number can then be deduced from the colour.

Scientists Can Make Neural Networks 90% Smaller

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Artificial Intelligence

Researchers from MIT found a way to create neural networks that are 90% smaller but just as smart.

In a new paper, researchers from MIT’s Computer Science and Artificial Intelligence Lab (CSAIL) have shown that neural networks contain subnetworks that are up to one-tenth the size yet capable of being trained to make equally accurate predictions — and sometimes can learn to do so even faster than the originals.

This article stood out to me because if neural networks can be smaller but just as smart, maybe it could encourage companies to keep machine learning locally on a device, like Apple does.