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Wayne Radinsky
17,818 followers -
Software Design Engineer
Software Design Engineer

17,818 followers
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Tencent, best known for WeChat, China's top messaging app, has an AI lab with 50 people and just poached Tong Zhang, head of Baidu's Big Data Lab, from Baidu.

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Tencent, best known for WeChat, China's top messaging app, has an AI lab with 50 people and just poached Tong Zhang, head of Baidu's Big Data Lab, from Baidu.

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"Psychologists enlist machine learning to help diagnose depression." They're using an old classification algorithm called support vector machines. What's perhaps new and interesting is that they're doing it on brain scans from diffusion tensor imaging, a type of MRI scan that locates white matter pathways. The article does not say which brain regions are implicated in depression, and suggests that that would be misguided because because the way depression is represented in the brain is much more complex than just one or a few areas.

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Elon Musk started a "neural lace" company called Neurallink, it will initially target medical uses to do with brain diseases such as epilepsy, it's funded entirely by Musk, and has hired some experts in neural probes and brain physiology.

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A new device for recording brain activity in high resolution while maintaining an excellent signal to noise ratio has been developed based on graphene field-effect transistors. "Graphene's biocompatibility, chemical stability and flexibility -- alongside its excellent electrical properties -- make it attractive for use in medical devices." "Mechanical compliance is an important requirement for safe neural probes and interfaces. Currently, the focus is on ultra-soft materials that can adapt conformally to the brain surface."

"Neural activity is detected through the electric fields generated when neurons fire. These fields are highly localised, so having ultra-small measuring devices that can be densely packed is important for accurate brain readings. The graphene-based probes are competitive with state-of-the-art platinum electrode arrays and have the benefits of intrinsic signal amplification and a better signal-to-noise performance when scaled down to very small sizes."

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Uber put its self-driving cars back on the road three days after one of its cars was involved in a crash in Tempe, Arizona. "Detective Lily Duran of the Tempe Police Department said the Uber vehicle was not at fault in the collision. Photos and a video posted on Twitter by Fresco News showed a Volvo SUV flipped on its side after an apparent collision involving two other, slightly damaged cars. Uber said the images appeared to be from the Tempe crash scene."

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"Mass Effect: Andromeda rips off Elon Musk's neural lace idea." "The Quarian alien race had a Matrix-esque disaster of robotic AI -- called the Geth -- overthrowing their creators. In the aftermath, the creation of new AI was made illegal in the Milky Way. But even that wasn't enough to stop a new kind of singularity from coming to fruition in the Andromeda Galaxy. This new singularity has everything to do with SAM; short for 'Simulated Adaptive Matrix,' SAM is an AI designed by Alec Ryder for the 600-year journey to the Andromeda Galaxy that departed in 2185.'

"The biotic implant of the Pathfinder allows constant communication with SAM, and it connects the AI to the human's nervous system, circulation, endocrine function, and exteroceptive senses. Said implant is a neurological, symbiotic link giving SAM full access to his host's physical and mental states, even allowing the alteration of electrical signals."

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Dance Dance Revolution steps can now be created automatically by a convolutional neural network. The system was trained on open-source data for a DDR clone called StepMania, where the steps are written by hand by fans. Although the neural network does not produce the identical steps as humans, it does produce playable steps with about the same difficulty level as humans.

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A solar panel with 26.3% efficiency has been made, breaking the previous record of 25.6%. The theoretical limit for silicon-based solar cells is 29%.

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3.5 years and 500K lines of Golang. Nate Finch relates his experience working on a large, monolithic server written in Go. Large servers with lots of concurrency is actually the use case the Go language was designed for, so it's perhaps no surprise it worked well. Go's minimalist simplicity and error handling, which have been widely criticized, actually worked well on this project. There were difficulties with package management and mocking time for testing. There were a few cross-platform computability issues, like Windows backslashes, but fewer than one would expect for a project this size.
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