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Mar 12, 2019

Unmasking Clever Hans predictors and assessing what machines really learn

Posted by in categories: entertainment, robotics/AI

Is your AI intelligent or just looking like it’s intelligent? In many ways, this depends on your idea of AI and what it is supposed to do. Scientists at Singapore University of Technology and Design have worked out a way to check for the issue. Open Access Journal: https://www.nature.com/articles/s41467-019-08987-4


Current learning machines have successfully solved hard application problems, reaching high accuracy and displaying seemingly intelligent behavior. Here we apply recent techniques for explaining decisions of state-of-the-art learning machines and analyze various tasks from computer vision and arcade games. This showcases a spectrum of problem-solving behaviors ranging from naive and short-sighted, to well-informed and strategic. We observe that standard performance evaluation metrics can be oblivious to distinguishing these diverse problem solving behaviors. Furthermore, we propose our semi-automated Spectral Relevance Analysis that provides a practically effective way of characterizing and validating the behavior of nonlinear learning machines. This helps to assess whether a learned model indeed delivers reliably for the problem that it was conceived for. Furthermore, our work intends to add a voice of caution to the ongoing excitement about machine intelligence and pledges to evaluate and judge some of these recent successes in a more nuanced manner.

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Mar 12, 2019

A quantum experiment suggests there’s no such thing as objective reality

Posted by in category: quantum physics

Physicists have long suspected that quantum mechanics allows two observers to experience different, conflicting realities. Now they’ve performed the first experiment that proves it.

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Mar 12, 2019

Stephen Hawking’s legacy will be honoured with a new 50p coin

Posted by in category: cosmology

A new 50p coin will memorialise Stephen Hawking, who died last year, while paying respect to his groundbreaking research on black holes.

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Mar 12, 2019

Light provides control for 3D printing with multiple materials

Posted by in categories: 3D printing, biotech/medical, engineering

3D printing has revolutionized the fields of healthcare, biomedical engineering, manufacturing and art design.

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Mar 12, 2019

Gene-edited food quietly arrives in restaurant cooking oil

Posted by in categories: bioengineering, biotech/medical, food, genetics

NEW YORK (AP) — Somewhere in the Midwest, a restaurant is frying foods with oil made from gene-edited soybeans. That’s according to the company making the oil, which says it’s the first commercial use of a gene-edited food in the U.S.

Calyxt said it can’t reveal its first customer for competitive reasons, but CEO Jim Blome said the oil is “in use and being eaten.”

The Minnesota-based company is hoping the announcement will encourage the food industry’s interest in the oil, which it says has no trans fats and a longer shelf life than other soybean oils. Whether demand builds remains to be seen, but the oil’s transition into the food supply signals gene editing’s potential to alter foods without the controversy of conventional GMOs, or genetically modified organisms.

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Mar 12, 2019

Semiconductor-coated nanoparticles kill bacteria, cancer cells

Posted by in categories: biotech/medical, nanotechnology

Nature India: All about science in India.

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Mar 12, 2019

Sir Martin Rees on the Future: Prospects for Humanity

Posted by in categories: robotics/AI, singularity

Astronomer Royal Sir Martin Rees on the #Future: Prospects for #Humanity https://www.singularityweblog.com/martin-rees/ #AI #Singularity #Futurism


Martin Rees has been concerned with our ever-heavier ‘footprint’ on the global environment and with the runaway consequences of our powerful technologies.

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Mar 12, 2019

“HD 140283” a star older than the Universe

Posted by in category: cosmology

The age our universe is about 3.8 billion years which was formed after big bang. But we discovered a star named HD 140283 found to be older than the universe.

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Mar 12, 2019

Quantum physicists succeed in controlling energy losses and shifts

Posted by in categories: computing, quantum physics

Quantum computers need to preserve quantum information for a long time to be able to crack important problems faster than a normal computer. Energy losses take the state of the qubit from one to zero, destroying stored quantum information at the same time. Consequently, scientists all over the globe have traditionally worked to remove all sources of energy loss—or dissipation—from these machines.

Dr. Mikko Mottonen from Aalto University and his research team have taken a different approach. “Years ago, we realized that quantum computers actually need dissipation to operate efficiently. The trick is to have it only when you need it,” he explains.

Continue reading “Quantum physicists succeed in controlling energy losses and shifts” »

Mar 12, 2019

NASA Space Apps Philippines Photo

Posted by in category: space

Proposed NASA — National Aeronautics and Space Administration lunar gateway #NASA #NASAMoonToMars #Moon2Mars

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