taiwanjohn - Slashdot User

Submission + - AI cracks centuries-old "Three Body Problem" in under a second

Submitted by taiwanjohn on Saturday November 09, 2019 @02:26AM

taiwanjohn writes: Current approaches to solving these problems involve using software that can take weeks or even months to complete calculations. So researchers decided to see if a neural network — a type of pattern recognizing A.I. that loosely mimics how the brain works — could do better.

The algorithm they built provided accurate solutions up to 100 million times faster than the most advanced software program, known as Brutus. That could prove invaluable to astronomers trying to understand things like the behavior of star clusters and the broader evolution of the universe, said Chris Foley, a biostatistician at the University of Cambridge and co-author of a paper to the arXiv database, which has yet to be peer-reviewed.

Submission + - Ars Op-Ed: SpaceX should put off Mars, focus on Commercial Crew

Submitted by taiwanjohn on Saturday September 03, 2016 @06:20AM

taiwanjohn writes: Ars Technica space reporter Eric Berger says in an op-ed: "Musk is unquestionably a genius. He can run his company however he likes. But if I may humbly suggest, he might use the September meeting as a forum to talk about the accident, what SpaceX has learned from it, and how he’s planning to implement commercial crew. He can talk Mars, of course, and we all would love to see him get there. But he must conquer Earth’s launch market first."

Submission + - Nate Silver's new site stirs climate controversy

Submitted by taiwanjohn on Thursday March 20, 2014 @01:49PM

taiwanjohn writes: One of the first articles on Nate Silver’s highly anticipated data-driven news site used flawed data to make its conclusions, according to some of the nation’s top climate scientists.
Silver’s FiveThirtyEight published its first article about climate change on Wednesday, entitled “Disasters Cost More Than Ever — But Not Because of Climate Change.” But climate scientists are condemning the article and its author, Roger Pielke Jr., saying he ignored critical data to produce a “deeply misleading” result.
The crux of Pielke’s article is this: Extreme weather events are costing us more and more money, but that is not because climate change is making extreme weather more frequent or intense. The reason we are losing more money, rather, is because we have more money to lose. Pielke came to this conclusion by measuring rising disaster damage costs alongside the rising global Gross Domestic Product. He also cited a U.N. climate report, along with his own research, to assert that extreme weather events have not been increasing in frequency or intensity.

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