Tootfinder

Opt-in global Mastodon full text search. Join the index!

No exact results. Similar results found.
@shriramk@mastodon.social
2026-04-06 14:50:57

My department is looking to hire a professor of practice in CS, with a focus on AI. Job posting below. If you have questions I'll do my best to answer them, else find someone who can! We are in Providence, easy commute access from Boston.

@arXiv_csGT_bot@mastoxiv.page
2026-06-05 07:33:20

Should Demand Models Incorporate Competitor Prices? Oblivious Learning and Algorithmic Collusion
Yuhang Wu, Assaf Zeevi
arxiv.org/abs/2606.05363 arxiv.org/pdf/2606.05363 arxiv.org/html/2606.05363
arXiv:2606.05363v1 Announce Type: new
Abstract: On a platform with many sellers, should a pricing algorithm explicitly model competitors' prices when learning demand? Classical learning arguments suggest an affirmative answer: ignoring competitors induces model misspecification and inefficiency. In contrast, recent work on algorithmic collusion suggests that strategic obliviousness -- deliberately ignoring competitor prices -- may facilitate collusive outcomes and improve profits. We study this modeling choice in a stylized competitive market with unknown noisy demand, in which multiple sellers repeatedly set prices and estimate demand via iterated least squares, and either incorporate competitors' prices into their demand models (informed) or ignore them (oblivious). We first show that, relative to a monopolist, an oblivious seller in a competitive market must explore more aggressively to compensate for the loss of dynamic competitor information. Building on this insight, we characterize market dynamics when all sellers are oblivious and show that prices converge to the competitive outcome under sufficient exploration, while a continuum of pseudo-equilibria arises when exploration decays. Analyzing the resulting price trajectories, we uncover an excursion phenomenon that gives rise to transient collusive patterns that dissipate as learning progresses. In markets with both oblivious and informed sellers, the informed strictly out-earn the oblivious. Read as a strategy game, the modeling choice has a unique Nash equilibrium: the all-informed market, in which prices converge to the competitive outcome efficiently. Overall, our results indicate that collusive patterns are not robust and are not sustained by oblivious modeling; therefore, incorporating competitor information, together with sufficient price exploration, remains a reliable strategy for sellers in competitive markets.
toXiv_bot_toot

Call the GI Rights Hotline at 1-877-447-4487.
Call for yourself or someone you care about

Free and confidential

One hotline for a nationwide network of counseling centers
girightshotline.org/

@Techmeme@techhub.social
2026-05-05 12:25:46

RadixArk, led by former xAI employee Ying Sheng, raised a $100M seed at a $400M valuation to make AI inference more efficient via its open-source SGLang engine (Meghan Bobrowsky/Wall Street Journal)
wsj.com…

@ethanwhite@hachyderm.io
2026-05-05 17:33:18

Join us (@…) as a postdoc working on your choice of ecological forecasting or drone computer vision based monitoring of the iconic Everglades ecosystem. Applications due Friday. Happy to answer question about the position.
jabberwocky.weecology.org/2026

@kubikpixel@chaos.social
2026-06-01 05:25:45

«KI-Modelle sind anfällig für wiederholte Angriffe:
Laut Forschern von Cisco versagen KI-Modelle bei realistischen Multi-Turn-Angriffen und lassen an Sicherheits-Benchmarks auf Basis weniger Prompts zweifeln.»
Der moderne Widerspruch ist die KI oder was ist es sonnst? So klug wie KI angeboten wird ist es einfach nicht.
🤖

@smashtie@mas.to
2026-06-06 15:24:29

Some of my favourites from the Whistler exhibition at Tate Britain. It's pretty cool to see all these in person. Whistler's mother is there too, but you know what that one looks like, right? #art #painting #exhibitions

The Coast of Brittany (Alone with the Tide) 1861
A rocky sand beach with the sea breaking against the shore hidden beyond. On the left a woman lies propped against a rock, dressed in a puritanical black with white bonnet and shawl
Symphony in White, No. 3, 1865-7

Two young women in full length, white dresses lie on, and in front of, a white chaise lounge . They are the very definition of languorous.
Crepuscule in Pink and Green: Valparaiso - 1866
A twilight painting of a fleet of thistle ships, some at anchor, in a wide bay. The sea is luminous and pale. The sky above is fading.
Red and Black: The Fan (Edith Birnie Philip) - 1891-6
A woman in a fine red and black dress, full length, looks towards the viewer, head slightly back in a confident pose. The brush strokes have an unfinished quality, loose and impressionistic, but the subject's form is very well defined.
@fanf@mendeddrum.org
2026-05-31 17:42:02

from my link log —
42 is an answer to the question, what is the sum of three cubes?
aperiodical.com/2019/09/42-is-

@arXiv_mathAT_bot@mastoxiv.page
2026-06-04 07:48:43

Slices of the special linear algebraic cobordism spectrum
Ahina Nandy, Oliver R\"ondigs, Egor Zolotarev
arxiv.org/abs/2606.05020 arxiv.org/pdf/2606.05020 arxiv.org/html/2606.05020
arXiv:2606.05020v1 Announce Type: new
Abstract: Let $F$ be a field of exponential characteristic $e$. We compute the slices of $\mathbf{MSL}[e^{-1}]$, where $\mathbf{MSL}$ is the special linear algebraic cobordism spectrum defined by Panin and Walter. The answer is expressed in terms of the second page of the Adams-Novikov spectral sequence for the special unitary cobordism spectrum, which was explicitly determined by Novikov. Its applicability is demonstrated by computations with the slice spectral sequence for $\mathbf{MSL}$, which determine the first few Milnor-Witt stems of its homotopy groups (up to the third) in terms of very effective hermitian $K$-theory. We also establish a decomposition of the rational special linear algebraic cobordism spectrum over an arbitrary qcqs scheme.
toXiv_bot_toot