Nvidia's Nemotron-Cascade 2 wins math and coding gold medals with 3B active parameters — and its post-training recipe is now open-source

Nvidia's Nemotron-Cascade 2 is a 30B MoE model that activates only 3B parameters at inference time, yet achieved gold medal-level performance at the 2025 IMO, IOI, and ICPC World Finals. Nvidia has ...

Train-to-Test scaling explained: How to optimize your end-to-end AI compute budget for inference

AI reasoning does not necessarily require spending huge amounts on frontier models. Instead, smaller models can yield ...
eLife

Serotonergic modulation of motor subspace dynamics drives a sleep-independent quiescent state

The dorsal raphe nucleus (DRN) serotonergic (5-HT) system has been implicated in regulating sleep and motor control; however, its specific role remains controversial. In this study, we found that ...
eLife

Revealing global stoichiometry conservation architecture in cells from Raman spectral patterns

Conservation levels of gene expression abundance ratios are globally coordinated in cells, and cellular state changes under such biologically relevant stoichiometric constraints are readable as ...
Entrepreneur

Sam Altman Issued a ‘Code Red’ After Anthropic Started Dominating the Business Market. Now OpenAI Is Doubling Its Workforce.

Sam Altman saw the writing on the wall months ago. The OpenAI CEO issued a “code red” late last year after realizing the company was spreading itself too thin — chasing everything from video models to ...
BBC

Claude Code users hitting usage limits 'way faster than expected'

Anthropic says it is looking to resolve an issue which is blocking users of its AI coding tool. Claude Code, the AI-powered helper for writing computer code, has become popular in recent months. The ...
The New York Times

A Show of Defiance Across the Nation

It’s the third time that the coalition behind the “No Kings” movement has organized events to protest President Trump and his policies. In the United States, more than 3,000 demonstrations were ...
The New York Times

Hard Fork

The new Anthropic model that’s too dangerous to be released is already revealing thousands of software vulnerabilities. By Kevin RooseCasey NewtonRachel CohnWhitney JonesVjeran PavicChris WoodDan ...
IEEE

Moving-Horizon Estimation for Multi-Sensor Systems Under Probabilistic Caching Mechanism: A Co-Design Scheme

Abstract: In practice, the cache, capable of storing frequently accessed data, is widely deployed in edge servers to guarantee quick retrieval and improve overall system performance. In this paper, ...
The Hacker News

The Real Problem Isn't That AI Can't Write Secure Code - It's That It's Expanding Attack Surface

While AI reduces some coding flaws, credential sprawl accelerates, expanding the non-human identity attack surface, and making remediation the new security bottleneck. AI is changing software ...
IEEE

Error Characterization and Correction of a Simple Circuit Model for Accurate and Rapid Resonant Frequency Estimation in Traction Power Supply Systems

Abstract: Harmonic resonance phenomena that arise in traction power supply systems (TPSS) can lead to severe operational consequences. Accurate determination of the resonant frequency in TPSS is ...
GitHub

train_validate.m

Rx = real_imag_consits(fake_samples_list_test(i,:),ones(1,M),M); %Rx = real_imag_consits(Test_R_clean(i,:),ones(1,M),M); legend({'Jammer','Target','Train'},'FontSize ...