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machine learning

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Illustration showing a human understanding text while a machine doesn’t.
Quantized Columns

What Does It Mean for AI to Understand?

By Melanie Mitchell
December 16, 2021
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It’s simple enough for AI to seem to comprehend data, but devising a true test of a machine’s knowledge has proved difficult.

artificial intelligence

AI Researchers Fight Noise by Turning to Biology

By Allison Whitten
December 7, 2021
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Tiny amounts of artificial noise can fool neural networks, but not humans. Some researchers are looking to neuroscience for a fix.

Photo of Anne Carpenter of the Broad Institute standing in front of a wall of colored microscopy images.
Q&A

Her Machine Learning Tools Pull Insights From Cell Images

By Esther Landhuis
November 2, 2021
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The computational biologist Anne Carpenter creates software that brings the power of machine learning to researchers seeking answers in mountains of cell images.

an artistic representation of a brain in a dish on a blue table with enlarged neurons and a neural network, against a red background with a signal of neural bursts
neural networks

Neuron Bursts Can Mimic Famous AI Learning Strategy

By Allison Whitten
October 18, 2021
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A new model of learning centers on bursts of neural activity that act as teaching signals — approximating backpropagation, the algorithm behind learning in AI.

neural networks

A New Link to an Old Model Could Crack the Mystery of Deep Learning

By Anil Ananthaswamy
October 11, 2021
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To help them explain the shocking success of deep neural networks, researchers are turning to older but better-understood models of machine learning.

Illustration of a neuron lit up with electrical signals.
neurons

How Computationally Complex Is a Single Neuron?

By Allison Whitten
September 2, 2021
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Computational neuroscientists taught an artificial neural network to imitate a biological neuron. The result offers a new way to think about the complexity of single brain cells.

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The Computer Scientist Training AI to Think With Analogies

By John Pavlus
July 14, 2021
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Melanie Mitchell has worked on digital minds for decades. She says they’ll never truly be like ours until they can make analogies.

An array of blocky orange objects of all different shapes, with a single blue blob in one of the rows and columns.
artificial intelligence

Same or Different? The Question Flummoxes Neural Networks.

By John Pavlus
June 23, 2021
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For all their triumphs, AI systems can’t seem to generalize the concepts of “same” and “different.” Without that, researchers worry, the quest to create truly intelligent machines may be hopeless.

Illustration of red spools with strands of DNA as the thread, with a blue brain in the background.
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Can Machines Control Our Brains?

By R. Douglas Fields
May 17, 2021
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Advances in brain-computer interface technology are impressive, but we’re not close to anything resembling mind control.


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