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BranPO: Scalable Contrastive Branch Sampling for Long-Horizon Agentic Reinforcement Learning

Announce Type: replace Abstract: Agentic reinforcement learning enables large language models to perform multi-turn planning and tool use, but long-horizon training remains challenging under sparse trajectory-level rewards, where a single outcome is uniformly assigned to all decisions. Prior methods introduce finer-grained supervision via tree-based exploration or process-level evaluation, but often incur high cost or produce noisy credit signals. In agentic trajectories, early mistakes may...

arXiv CS 8d ago

Long awaited South Korean Centre Pompidou branch opens in Seoul

The Centre Pompidou Hanwha in South Korea opens its doors to the public on Thursday, with an exhibition on Cubism featuring the work of 54 artists. It is part of the Centre Pompidou Paris' Constellation programme, through which the cultural centre is loaning its works to museums and cultural centres across the world while it is closed for a five years of renovation works.

France 24 6d ago

Bruce Springsteen Opens His Music Center

Bruce Springsteen greets Jon Bon Jovi at a ceremony for the Bruce Springsteen Center for American Music in Long Branch, N.J., on Saturday.

New York Times 3d ago

Planner-Centric Reinforcement Learning for Deep Research with Structure-Aware Reward

Announce Type: new Abstract: Deep research tasks require LLMs to plan what to investigate, retrieve evidence, and synthesize long-form answers across multiple branches of inquiry. Existing training paradigms either rely on short-form verifiable QA as a proxy or optimize monolithic long trajectories, which makes planning and execution difficult to disentangle and yields weak credit assignment for the planning process. We propose DecomposeR, a planner-centric deep research framework that...

arXiv CS 9d ago

Pair jailed for modern slavery offences against McDonald's worker

Pair jailed for modern slavery offences against McDonald's worker A couple have been jailed after exploiting a man from the Czech Republic by forcing him to work long shifts at McDonald's branch in Cambridgeshire for virtually no wages A couple who forced a man to work at a McDonald's restaurant in Cambridgeshire while stealing his wages have been jailed for their roles in a modern slavery operation. Jan Drevenak, 39, and his partner Monika Olahova, 41, were found guilty of arranging...

Daily Mirror 3d ago

Encoding neuronal shape in the stochastic dynamics of branching processes

Cell shape critically influences function, yet how complex and reproducible morphologies emerge from stochastic cellular dynamics remains unclear. Here, we investigate dendritic morphogenesis of two classes of Drosophila mechanosensory neurons with contrasting architectures, combining in vivo live imaging, quantitative analysis, cytoskeletal perturbations, and computational modeling. We show that despite sharing similar local stochastic branching rules, the two classes exhibit divergent...

bioRxiv 5d ago

Officials are warning about teen takeovers: Are they harmless fun or dangerous gatherings?

Officials are warning about teen takeovers: Are they harmless fun or dangerous gatherings? ‘These teen meetups aren't going away because social media isn't going away,’ a former New York City detective says - Bookmark - CommentsGo to comments Arrests, curfews and threats to prosecute parents are among the official responses to the so-called teen takeovers of public spaces across the country — but it may not be enough to stem the violence tied to some of the unsanctioned gatherings. The...

The Independent World 10d ago

How to Save the Supreme Court From Itself

Subscribe here: Apple Podcasts | Spotify | YouTubeIn this episode of The David Frum Show, The Atlantic’s David Frum opens with his thoughts on growing extremism in the Democratic Party. Frum compares this to the paranoia and conspiratorial thinking that cost the Republican Party dearly in the 2010s and cautions the Democrats against making the same mistakes. Then David is joined by Kate Shaw, a co-host of the podcast Strict Scrutiny and a professor of law at University of Pennsylvania Carey...

The Atlantic 7d ago

Loss-Guided Adaptive Scale Refinement for Molecular Force Prediction

Announce Type: new Abstract: Molecular systems involve interactions across multiple spatial scales, from local coordination and short-range perturbations to long-range electrostatic and solvent-mediated effects. However, most molecular representation learning methods rely on manually predefined scales, and the task-optimal modeling scale may not coincide with these fixed levels. This study introduces a loss-guided adaptive scale refinement framework for molecular force prediction, treating...

arXiv CS 1d ago

Chicago high school faces outcry after axing Arabic program

A Chicago high school's decision to eliminate its Arabic language program due to low enrollment and budget constraints has sparked backlash from community members who argue the course is vital for inclusion and diversity. Lincoln Park High School (LPHS) announced it will no longer offer Arabic to incoming freshmen. The decision comes as Chicago Public Schools (CPS) grapples with a projected $732.5 million deficit, forcing districtwide cuts to teaching and administrative staff, according to a...

Fox News 8d ago