AI tagged posts

Algorithms Empower Metalens Design

https://www.seas.harvard.edu/news/2022/05/algorithms-empower-metalens-design

New approach paves the way for larger, more complex metalenses. Compact and lightweight metasurfaces — which use specifically designed and patterned nanostructures on a flat surface to focus, shape and control light — are a promising technology for wearable applications, especially virtual and augmented reality systems. Today, research teams painstakingly design the specific pattern of nanostructures on the surface to achieve the desired function of the lens, whether that be resolving nanoscale features, simultaneously producing several depth-perceiving images or focusing light regardless of polarization.

If the metalens is going to be used commercially in AR and VR systems, it’s going to need to be scaled ...

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When it comes to AI, can we Ditch the Datasets?

MIT researchers have demonstrated the use of a generative machine-learning model to create synthetic data, based on real data, that can be used to train another model for image classification. This image shows examples of the generative model’s transformation methods. Credit: Massachusetts Institute of Technology

Huge amounts of data are needed to train machine-learning models to perform image classification tasks, such as identifying damage in satellite photos following a natural disaster. However, these data are not always easy to come by. Datasets may cost millions of dollars to generate, if usable data exist in the first place, and even the best datasets often contain biases that negatively impact a model’s performance.

To circumvent some of the problems presented by datasets, M...

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AI Is Discovering Patterns in Pure Mathematics That Have Never Been Seen Before

We can add suggesting and proving mathematical theorems to the long list of what artificial intelligence is capable of: Mathematicians and AI experts have teamed up to demonstrate how machine learning can open up new avenues to explore in the field.

While mathematicians have been using computers to discover patterns for decades, the increasing power of machine learning means that these networks can work through huge swathes of data and identify patterns that haven’t been spotted before.

In a newly published study, a research team used artificial intelligence systems developed by DeepMind, the same company that has been deploying AI to solve tricky biology problems and improve the accuracy of weather forecasts, to unknot some long-standing math problems.

“Problems in mathemati...

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This AI Tool lets you visualize how Climate Change could affect your Home

climate change
Credit: CC0 Public Domain

A new tool with cutting-edge image recognition AI lets you visualize the future effects of climate change on any place in the world—including your own home.

The project, titled “This Climate Does Not Exist,” lets you enter the address of your current home or your favorite travel destination and see what it could look like years later once climate change has taken its toll.

You can see how Disneyland will look like covered in smog, the way extreme smog blanketed Beijing in 2014. You can see what your childhood home will look like after it is flooded by rising sea levels, the way floods devastated Indonesia in 2020 after widespread deforestation.

Extreme weather events due to climate change are already impacting corners of the globe.

In a separate ...

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