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For more than half a century, researchers around the world have been struggling with an algorithmic problem known as “the single source shortest path problem.” The problem is essentially about how to devise a mathematical recipe that best finds the shortest route between a node and all other nodes in a network, where there may be connections with negative weights.

Sound complicated? Possibly. But in fact, this type of calculation is already used in a wide range of the apps and technologies that we depend upon for finding our ways around—as Google Maps guides us across landscapes and through cities, for example.

Now, researchers from the University of Copenhagen’s Department of Computer Science have succeeded in solving the single source shortest path problem, a riddle that has stumped researchers and experts for decades.

Yitang (Tom) Zhang, a Chinese-American mathematician who recently revealed that he had solved the Landau-Siegel zeros conjecture, delivered an online speech at Peking University on November 8 to answer external questions on his newly published 111-page paper.

On November 7, Zhang’s new paper, “Discrete Mean Estimates and the Landau-Siegel Zero,” was officially launched on arXiv, an open-access repository of electronic preprints and postprints.

During the speech, Zhang used a whiteboard and a black marker to show the relevant proof formulas by hand and explain the innovations. He gave the speech in Chinese and didn’t use PowerPoint.

DeviantArt faced backlash Friday after the popular art website introduced a brand-new Artificial Intelligence tool that would allow systems to generate works of art on their own.

The AI — which is being called DreamUp — is meant to push for “safe and fair” AI image generation for DeviantArt users, reports Endgadget.

“AI technology for creation is a powerful force we can’t ignore,” said DeviantArt CEO Moti Levy.

Generative AI models for businesses threaten to upend the world of content creation, with substantial impacts on marketing, software, design, entertainment, and interpersonal communications. These models are able to produce text and images: blog posts, program code, poetry, and artwork. The software uses complex machine learning models to predict the next word based on previous word sequences, or the next image based on words describing previous images. Companies need to understand how these tools work, and how they can add value.

Page-utils class= article-utils—vertical hide-for-print data-js-target= page-utils data-id= tag: blogs.harvardbusiness.org, 2007/03/31:999.342234 data-title= How Generative AI Is Changing Creative Work data-url=/2022/11/how-generative-ai-is-changing-creative-work data-topic= data-authors= Thomas H. Davenport; Nitin Mittal data-content-type= Digital Article data-content-image=/resources/images/article_assets/2022/11/Nov22_14_1364531717-383x215.jpg data-summary=

It may soon be standard practice for AI tools — such as GPT-3 and DALL-E — to provide first drafts of emails, articles, reports, blog posts, presentations, videos, and more.

Cheers!

𝐁𝐞𝐞𝐫 𝐈𝐧𝐠𝐫𝐞𝐝𝐢𝐞𝐧𝐭 𝐌𝐚𝐲 𝐈𝐧𝐡𝐢𝐛𝐢𝐭 𝐂𝐥𝐮𝐦𝐩𝐢𝐧𝐠 𝐨𝐟 𝐀𝐥𝐳𝐡𝐞𝐢𝐦𝐞𝐫’𝐬 𝐏𝐫𝐨𝐭𝐞𝐢𝐧

𝘽𝙚𝙚𝙧 𝙞𝙨 𝙤𝙣𝙚 𝙤𝙛 𝙩𝙝𝙚 𝙤𝙡𝙙𝙚𝙨𝙩 𝙖𝙣𝙙 𝙢𝙤𝙨𝙩 𝙥𝙤𝙥𝙪𝙡𝙖𝙧 𝙗𝙚𝙫𝙚𝙧𝙖𝙜𝙚𝙨 𝙞𝙣 𝙩𝙝𝙚 𝙬𝙤𝙧𝙡𝙙, 𝙬𝙞𝙩𝙝 𝙨𝙤𝙢𝙚 𝙥𝙚𝙤𝙥𝙡𝙚 𝙡𝙤𝙫𝙞𝙣𝙜 𝙖𝙣𝙙 𝙤𝙩𝙝𝙚𝙧𝙨 𝙝𝙖𝙩𝙞𝙣𝙜 𝙩𝙝𝙚 𝙙𝙞𝙨𝙩𝙞𝙣𝙘𝙩, 𝙗𝙞𝙩𝙩𝙚𝙧 𝙩𝙖𝙨𝙩𝙚 𝙤𝙛 𝙩𝙝𝙚 𝙝𝙤𝙥𝙨 𝙪𝙨𝙚𝙙 𝙩𝙤 𝙛𝙡𝙖𝙫𝙤𝙧 𝙞𝙩𝙨 𝙢𝙖𝙣𝙮 𝙫𝙖𝙧𝙞𝙚𝙩𝙞𝙚𝙨. 𝘽𝙪𝙩 𝙖𝙣 𝙚𝙨𝙥𝙚𝙘𝙞𝙖𝙡𝙡𝙮 “𝙝𝙤𝙥𝙥𝙮” 𝙗𝙧𝙚𝙬 𝙢𝙞𝙜𝙝𝙩 𝙝𝙖𝙫𝙚 𝙪𝙣𝙞𝙦𝙪𝙚 𝙝𝙚𝙖𝙡𝙩𝙝 𝙗𝙚𝙣𝙚𝙛𝙞𝙩𝙨. 𝙍𝙚𝙘𝙚𝙣𝙩 𝙧𝙚𝙨𝙚𝙖𝙧𝙘𝙝 𝙥𝙪𝙗𝙡𝙞𝙨𝙝𝙚𝙙 𝙞𝙣 𝘼𝘾𝙎 𝘾𝙝𝙚𝙢𝙞𝙘𝙖𝙡 𝙉𝙚𝙪𝙧𝙤𝙨𝙘𝙞𝙚𝙣𝙘𝙚 𝙧𝙚𝙥𝙤𝙧𝙩𝙨 𝙩𝙝𝙖𝙩 𝙘𝙝𝙚𝙢𝙞𝙘𝙖𝙡𝙨 𝙚𝙭𝙩𝙧𝙖𝙘𝙩𝙚𝙙 𝙛𝙧𝙤𝙢 𝙝𝙤𝙥 𝙛𝙡𝙤𝙬𝙚𝙧𝙨 𝙘𝙖𝙣, 𝙞𝙣 𝙡𝙖𝙗 𝙙𝙞𝙨𝙝𝙚𝙨, 𝙞𝙣𝙝𝙞𝙗𝙞𝙩 𝙩𝙝𝙚 𝙘𝙡𝙪𝙢𝙥𝙞𝙣𝙜 𝙤𝙛 𝙖𝙢𝙮𝙡𝙤𝙞𝙙 𝙗𝙚𝙩𝙖 𝙥𝙧𝙤𝙩𝙚𝙞𝙣𝙨, 𝙬𝙝𝙞𝙘𝙝 𝙞𝙨 𝙖𝙨𝙨𝙤𝙘𝙞𝙖𝙩𝙚𝙙 𝙬𝙞𝙩𝙝 𝘼𝙡𝙯𝙝𝙚𝙞𝙢𝙚𝙧’𝙨 𝙙𝙞𝙨𝙚𝙖𝙨𝙚 (𝘼𝘿).

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Researchers in the Princeton University Department of Chemistry have discovered a new multi-step pathway through which bacteria found in the mammalian gut produce antimicrobial peptides.

The newly identified biosynthetic pathway transforms a biologically inert peptide into structurally complex antibiotics, which they call enteropeptins. Enteropeptins are a class of ribosomally synthesized peptide natural products, referred to as RiPPs.

The core structure of these products is synthesized by the ribosome, which is limited to the 20 canonical amino acids. The Mo Lab discovered and characterized new metalloenzymes capable of converting arginine, a canonical amino acid, into N-methylornithine, a noncanonical amino acid, within enteropeptin.

China’s Daocheng Solar Radio Telescope is among a suite of instruments the country has built in the past three years to study the Sun.

The hundreds of gold-rich stars discovered in our Milky Way galaxy may have come from smaller galaxies that merged 10 billion years ago, according to new simulations by a supercomputer.

Using the ATERUI II supercomputer in the Center for Computational Astrophysics at the National Astronomical Observatory of Japan, scientists at Tohoku University and the University of Notre Dame developed new simulations of galaxy formation with the highest resolution yet.

The paper was published this week in the Monthly Notices of the Royal Astronomical Society.

A new paper published in Nature Communications presents research on unique peptides with anti-cancer potential.

The research was led by Professor Ashraf Brik and post-doctoral fellows Dr. Ganga B. Vamisetti and Dr. Abbishek Saha from the Schulich Faculty of Chemistry at the Technion—Israel Institute of Technology in Haifa, along with Professor Nabieh Ayoub from the Technion’s Faculty of Biology and Professor Hiroaki Suga from the University of Tokyo.

Peptides are short chains of amino acids linked by peptide bonds, the name given to chemical bonds formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule.