Strategies drawn from physics
The win is already turning heads on social media as a result of it appears uncommon that analysis in a pc science discipline like machine studying may win a Nobel Prize for physics. “And the 2024 Nobel Prize in Physics doesn’t go to physics…” tweeted German physicist Sabine Hossenfelder this morning.
From the Nobel committee’s standpoint, the award largely derives from the truth that the 2 males drew from statistical fashions utilized in physics and partly from recognizing the developments in physics analysis that got here from utilizing the lads’s neural community strategies as analysis instruments.
Nobel committee chair Ellen Moons, a physicist at Karlstad College, Sweden, mentioned through the announcement, “Synthetic neural networks have been used to advance analysis throughout physics matters as numerous as particle physics, materials science and astrophysics.”
Hopfield, a 91-year-old theoretical biologist with a physics background, made a breakthrough in 1982 by growing a community that described connections between nodes as bodily forces, as Nature describes in a report. His innovation, often known as the Hopfield community, makes use of ideas from physics that describe how atomic spins behave in supplies. Particularly, it shops patterns as low-energy states, permitting the system to recreate photos when prompted with related patterns. This method mimicked associative reminiscence, resembling how the mind remembers phrases or ideas.
Hinton, who’s 76, constructed upon Hopfield’s analysis within the early Nineteen Eighties by growing a layered model of the Hopfield community that included chances. Hinton drew parallels to physics research of huge methods of comparable parts like fuel molecules. As a substitute of monitoring particular person molecules, physicists study collective properties like strain or temperature. The Boltzmann equation from Nineteenth-century physics calculates the chance of various states in such methods. Hinton utilized this idea to neural networks, naming his 1985 methodology the “Boltzmann machine,” which highlighted the connection between machine studying and statistical physics. A Boltzmann machine is able to recognizing and classifying photos and producing new examples based mostly on its coaching knowledge.
