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Dec 1, 2022

Mastering Stratego, the classic game of imperfect information

Posted by in categories: entertainment, robotics/AI

Game-playing artificial intelligence (AI) systems have advanced to a new frontier. Stratego, the classic board game that’s more complex than chess and Go, and craftier than poker, has now been mastered. Published in Science, we present DeepNash, an AI agent that learned the game from scratch to a human expert level by playing against itself.

DeepNash uses a novel approach, based on game theory and model-free deep reinforcement learning. Its play style converges to a Nash equilibrium, which means its play is very hard for an opponent to exploit. So hard, in fact, that DeepNash has reached an all-time top-three ranking among human experts on the world’s biggest online Stratego platform, Gravon.

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Dec 1, 2022

This Artificial Intelligence Paper Presents an Advanced Method for Differential Privacy in Image Recognition with Better Accuracy

Posted by in categories: biotech/medical, finance, information science, robotics/AI

Machine learning has increased considerably in several areas due to its performance in recent years. Thanks to modern computers’ computing capacity and graphics cards, deep learning has made it possible to achieve results that sometimes exceed those experts give. However, its use in sensitive areas such as medicine or finance causes confidentiality issues. A formal privacy guarantee called differential privacy (DP) prohibits adversaries with access to machine learning models from obtaining data on specific training points. The most common training approach for differential privacy in image recognition is differential private stochastic gradient descent (DPSGD). However, the deployment of differential privacy is limited by the performance deterioration caused by current DPSGD systems.

The existing methods for differentially private deep learning still need to operate better since that, in the stochastic gradient descent process, these techniques allow all model updates regardless of whether the corresponding objective function values get better. In some model updates, adding noise to the gradients might worsen the objective function values, especially when convergence is imminent. The resulting models get worse as a result of these effects. The optimization target degrades, and the privacy budget is wasted. To address this problem, a research team from Shanghai University in China suggests a simulated annealing-based differentially private stochastic gradient descent (SA-DPSGD) approach that accepts a candidate update with a probability that depends on the quality of the update and the number of iterations.

Concretely, the model update is accepted if it gives a better objective function value. Otherwise, the update is rejected with a certain probability. To prevent settling into a local optimum, the authors suggest using probabilistic rejections rather than deterministic ones and limiting the number of continuous rejections. Therefore, the simulated annealing algorithm is used to select model updates with probability during the stochastic gradient descent process.

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Dec 1, 2022

A company’s nuclear fusion rockets could help us escape the Solar System in our lifetime

Posted by in categories: nuclear energy, space travel

The space firm has already built the most powerful electric propulsion engine in Europe.

Nuclear fusion-powered rockets might be nearer than you think. UK rocket company Pulsar Fusion has been awarded funding from the UK Space Agency to help it develop “integrated nuclear fission-based power systems for electric propulsion”, a press statement shared with IE via email reveals.

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Dec 1, 2022

SpaceX’s Starship may be just one static fire test away from an orbital launch

Posted by in category: space travel

The private space firm fired up 11 of Booster 7’s 33 next-generation Raptor engines.

SpaceX is making steady progress towards the orbital maiden test flight of its massive Mars-bound Starship rocket. The private space firm conducted a “static fire” test on Tuesday (Nov .29), at its South Texas facility. It ignited a total of 11 of 33 next-gen Raptor engines on its Starship first-stage Super Heavy prototype, Booster 7.

The static fire engine test started at 2:42 pm EST (19:42 GMT) and lasted for 13 seconds. On Twitter, SpaceX shared an image and wrote, “Booster 7 completed a long-duration static fire test of 11 Raptor 2 engines on the orbital launch pad at Starbase.”

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Dec 1, 2022

Neuralink has an amazing monkey who writes words with his brain

Posted by in categories: biotech/medical, computing, Elon Musk, neuroscience

Elon Musk is trying to help the paralyzed to move again, through electrodes in the cerebral cortex.

Neuralink, the strange and somewhat vague brainchild of Elon Musk, held an event Wednesday that the CEO of Tesla, SpaceX and Twitter called a “show and tell.” And show and tell it did — as a monkey welcomed the audience by typing a message through a brain-computer interface.

Neuralink’s product records action potentials of neurons in the brain. This is done by placing an electrode close enough to the synapse of two neurons in the brain and taking a recording of its electrical impulse.

Dec 1, 2022

Volunteers are using a Tinder-like app to help build the world’s largest 3D map of the cosmos

Posted by in category: cosmology

Swipe right to uncover the mysteries of dark energy.

A group of more than 10,000 amateur astronomers spread out over 85 countries has identified roughly 240,000 galaxies over the last two years. Now, the Dark Energy Explorers group aims to recruit even more volunteers and take its work to the next level with a project that could shed new light on the mysterious nature of dark energy, a press statement reveals.

To do so, they must help build the most extensive 3D map of the cosmos by using an app that functions surprisingly like the popular dating app Tinder.

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Dec 1, 2022

AI and one X-ray can potentially predict the risk of a heart attack or stroke

Posted by in categories: biotech/medical, robotics/AI

Researchers have created a deep learning method that can predict which patients might be eligible for life-saving medication that can prevent both diseases.

A new artificial intelligence model has been created that uses deep learning to predict the 10-year risk of death from a heart attack or stroke from a single X-ray. The results from the study were presented on Nov. 29 at the Radiological Society of North America (RSNA) annual meeting.


AI used to predict patterns of heart attacks and strokes

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Dec 1, 2022

In a first, robot removes a 2.3-inch cancerous tumor from a 61-year-old’s throat

Posted by in categories: biotech/medical, robotics/AI

Using the Versius surgical robot permitted a keyhole, or minimal access surgical approach, in an otherwise open surgery.

A robot at Gloucestershire Royal Hospital (GRH), United Kingdom, saved the life of a 61-year-old patient by removing a cancerous tumor from their throat, in what can be called a first in the country.

“To have been given a second chance to see my grandchildren, my children, and my wife has meant so much to me. The team at the GRH saved my life, and I’ll be forever grateful to them for doing so,” Nugent told Gloucestershire Live in an interview.

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Dec 1, 2022

Tech-crackdown in China: Alibaba’s Jack Ma found ‘painting watercolors’ in Japan

Posted by in category: business

The tech billionaire has been living in Tokyo for six months after the fallout with the Chinese state.

Jack Ma, the founder of the $211.48 billion worth fortune Alibaba, has been located in Japan after the fallout with the Chinese communist state.

“The richest business leader in China has been living in central Tokyo, amid Beijing’s continuing crackdown on the country’s technology sector and its most powerful businessmen,” said FT.

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Dec 1, 2022

European Central Bank warns that Bitcoin’s days might be over soon

Posted by in categories: bitcoin, cryptocurrencies

The recent price stabilization was the last gasp, according to experts.

The world’s most popular cryptocurrency, Bitcoin, is on its way to irrelevance, according to the Director General of the European Central Bank and his adviser. In a recent blog post, the duo questioned the utility of Bitcoin as a form of alternate currency and the value it has created for society thus far.

The comments come at a time when the cryptocurrency industry is reeling under a shock from the collapse of FTX, one of the largest crypto exchanges in the world.

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