Lifeboat Foundation

We use a convolutional neural network (CNN) to study cosmic string detection in cosmic microwave background (CMB) flat sky maps with Nambu-Goto strings. On noiseless maps we can measure string tensions down to order $10^{-9}$, however when noise is included we are unable to measure string tensions below.

$10^{-7}$. Motivated by this impasse, we derive an information theoretic bound on the detection of the cosmic string tension $Gμ$ from CMB maps. In particular we bound the information entropy of the posterior distribution of.

$Gμ$ in terms of the resolution, noise level and total survey area of the CMB.

Google, Microsoft, and Amazon are teaming up with Big Oil to squeeze more oil and gas out of the ground using machine learning technology.

Sources:
Brian Merchant (Gizmodo) https://gizmodo.com/how-google-microsoft-and-big-tech-are-au…1832790799
Christopher M. Matthews (Wall Street Journal) https://www.wsj.com/articles/silicon-valley-courts-a-wary-oil-patch-1532424600
Matt Novak (Gizmodo) https://paleofuture.gizmodo.com/article-from-1975-the-world-…1732903871
Kasia Tokarska
Daniel Civitarese
Ghassan AlRegib — https://ghassanalregib.info/

Continue reading “Google and Amazon are now in the oil business” »

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SpaceX’s New Starship Prototype Could Fly in Just 3 Months, Elon Musk Says :