Los alamos national laboratory, Laboratory in New Mexico

According to new research from Los Alamos National Laboratory, artificial brains too might require sleep for proper functioning."We study spiking neural networks, which are systems that learn much as living brains do," said Los Alamos National Laboratory computer scientist Yijing Watkins."We were fascinated by the prospect of training a neuromorphic processor in a manner analogous to how humans and other biological systems learn from their environment during childhood development," Watkins added.The scientist and her research team found that the network simulations became unstable after continuous periods of unsupervised learning.When they exposed the networks to states that are analogous to the waves that living brains experience during sleep, stability was restored. "It was as though we were giving the neural networks the equivalent of a good night's rest," said Watkins.The discovery came about as the research team worked to develop neural networks that closely approximate how humans and other biological systems learn to see.The group initially struggled with stabilising simulated neural networks undergoing unsupervised dictionary training, which involves classifying objects without having prior examples to compare them to."The issue of how to keep learning systems from becoming unstable really only arises when attempting to utilise biologically realistic, spiking neuromorphic processors or when trying to understand biology itself," said Los Alamos computer scientist and study coauthor Garrett Kenyon."The vast majority of machine learning, deep learning, and AI researchers never encounter this issue because in the very artificial systems they study they have the luxury of performing global mathematical operations that have the effect of regulating the overall dynamical gain of the system," added Kenyon.The researchers characterise the decision to expose the networks to an artificial analog of sleep as nearly a last-ditch effort to stabilise them. They experimented with various types of noise, roughly comparable to the static you might encounter between stations while tuning a radio.The best results came when they used waves of so-called Gaussian noise, which includes a wide range of frequencies and amplitudes. They hypothesize that the noise mimics the input received by biological neurons during slow-wave sleep. The results suggest that slow-wave sleep may act, in part, to ensure that cortical neurons maintain their stability and do not hallucinate.The groups' next goal is to implement their algorithm on Intel's Loihi neuromorphic chip. They hope allowing Loihi to sleep from time to time will enable it to stably process information from a silicon retina camera in real time.If the findings confirm the need for sleep in artificial brains, we can probably expect the same to be true of androids and other intelligent machines that may come about in the future.( With inputs from ANI )

Home

City

Latest News

Cricket

LT Premium

National

International

Maharashtra

Opinions

Chhatrapati Sambhajinagar

Nagpur

Entertainment

Photos

Business

Technology

Sports

Lifestyle

Social Viral

Lokmat Games

Health

Lok Sabha Election 2024

Ram Navami 2024

Dubai Rains

Maharashtra Lok Sabha Election

IPL 2024

Salman Khan

Los Alamos National LaboratoryFOLLOW

Los alamos national laboratory, Latest News

International :China targeted scientists working in US labs to advance military technologies: Report

The Chinese government recruited scientists, who worked at Los Alamos National Laboratory in New Mexico, for assisting China to advance key military and dual-use technologies in areas such as hypersonics, deep-earth penetrating warheads, unmanned aut ...

Politics :Wildfires in New Mexico continue going wild

Houston, May 11 Fueled by high winds and drought, wildfires starting more than one month ago continue burning ... ...

Technology :Study tracks cells that host HIV

A new research has found the lifespans and location of the cells that are responsible for producing HIV, preventing its eradication. ...

International :Perseverance Rover's SuperCam science instrument delivers first results

The first readings from the SuperCam instrument aboard NASA's Perseverance rover arrived on Earth on Thursday (local time). ...

International :Ex-Los Alamos Lab employee sentenced to probation for hiding China ties: US Justice Dept

A former employee for the Los Alamos National Laboratory in the US state of New Mexico was put on five years probation for lying about a scheme to steal intellectual property for China, the Justice Department said on Tuesday. ...

Lifestyle :Artificial brains may need sleep for proper functioning, says study

According to new research from Los Alamos National Laboratory, artificial brains too might require sleep for proper functioning. ...