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Dynamic Revenue Sharing

Neural Information Processing Systems

Many online platforms act as intermediaries between a seller and a set of buyers. Examples of such settings include online retailers (such as Ebay) selling items on behalf of sellers to buyers, or advertising exchanges (such as AdX) selling pageviews on behalf of publishers to advertisers. In such settings, revenue sharing is a central part of running such a marketplace for the intermediary, and fixed-percentage revenue sharing schemes are often used to split the revenue among the platform and the sellers. In particular, such revenue sharing schemes require the platform to (i) take at most a constant fraction \alpha of the revenue from auctions and (ii) pay the seller at least the seller declared opportunity cost c for each item sold. A straightforward way to satisfy the constraints is to set a reserve price at c / (1 - \alpha) for each item, but it is not the optimal solution on maximizing the profit of the intermediary.




3I/ATLAS comet is bursting with alcohol, surprising astronomers

Popular Science

An artist's impression of 3I/ATLAS is shown as it passes near the Sun, illuminating one side of the comet. On the side of the comet closer to the sun, the methanol gas is shown in blue, with icy dust grains still present in the gas. On the dark side of the comet, the hydrogen cyanide is shown in orange. Breakthroughs, discoveries, and DIY tips sent six days a week. The comet 3I/ATLAS is well on its way back into deep space, but the famous cosmic visitor continues to fascinate astronomers.

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We come in peace! Aliens could be CATAPULTED onto Earth via an asteroid, study claims

Daily Mail - Science & tech

Horrifying next twist in the Alexander brothers case: MAUREEN CALLAHAN exposes an unthinkable perversion that's been hiding in plain sight Hollywood icon who starred in Psycho after Hitchcock dubbed her'my new Grace Kelly' looks incredible at 95 Alexander brothers' alleged HIGH SCHOOL rape video: Classmates speak out on sickening footage... as creepy unseen photos are exposed Model Cindy Crawford, 60, mocked for her'out of touch' morning routine: 'Nothing about this is normal' Kentucky mother and daughter turn down $26.5MILLION to sell their farms to secretive tech giant that wants to build data center there Tucker Carlson erupts at Trump adviser as she hurls'SLANDER' claim linking him to synagogue shooting NFL superstar Xavier Worthy spills all on Travis Kelce, the Chiefs' struggles... and having Taylor Swift as his No 1 fan Heartbreaking video shows very elderly DoorDash driver shuffle down customer's driveway with coffee order because he is too poor to retire Amber Valletta, 52, was a '90s Vogue model who made movies with Sandra Bullock and Kate Hudson, see her now Nancy Mace throws herself into Iran warzone as she goes rogue on Middle East rescue mission: 'I AM that person' While aliens in science fiction hop between planets on vast spaceships, scientists say real-life extraterrestrials might take a far less glamorous means of transport. When an asteroid slams into a planet's surface, it catapults a spray of rocky debris with so much force that pieces can land on distant worlds. Scientists already know that rocks from Mars have travelled all the way to Earth after an asteroid strike. Now, researchers from Johns Hopkins University believe that microscopic organisms could have hitched a lift. According to a new study, certain hardy bacteria can survive the immense pressures of an asteroid impact and the harsh conditions of the journey through space.


Towards Federated Foundation Models: Scalable Dataset Pipelines for Group-Structured Learning Zachary Charles

Neural Information Processing Systems

We introduce Dataset Grouper, a library to create large-scale group-structured (e.g., federated) datasets, enabling federated learning simulation at the scale of foundation models. This library facilitates the creation of group-structured versions of existing datasets based on user-specified partitions, and directly leads to a variety of useful heterogeneous datasets that can be plugged into existing software frameworks. Dataset Grouper offers three key advantages. First, it scales to settings where even a single group's dataset is too large to fit in memory. Second, it provides flexibility, both in choosing the base (non-partitioned) dataset and in defining partitions.



Learning Distributedand Fair Policiesfor Network Load Balancingas Markov Potential Game

Neural Information Processing Systems

At t 2 H inahorizonH ofthegireceiwi(t) 2 W, theworkload policy i 2 , where istheload t, a anactionai(t)= {aij(t)}Nj=1, accordingwi(t) are i(t). Q (o, a) r(o, a) Eo0[V (o0)] 2 , whereV (o0)= Ea0[Q (o0,a0) log (a0|o0)] and Q isthetargetQ network; theactorpolicy isupdatedwiththegradient r Eo[Ea [ log (a|o) Q (o, a)]].