Confinement, deconfinement, and bound states in the spin-$1$ and spin-$3/2$ generalizations of the Majumdar–Ghosh chain

Posted by klaurent Delft

Kavli Affiliate: Natalia Chepiga | First 5 Authors: Aman Sharma, Aman Sharma, , , | Summary: We investigate the nature of low-energy excitations in a spin chain with antiferrmomagnetic nearest-neighbor $J_1$, next-nearest-neighbor $J_2$, and three-site $J_3$ interactions using the time-dependent density matrix renormalization group and the single mode approximation techniques. In the absence of the […]


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MARTA: The connection between chemical enrichment, feedback, and dust in a Wolf-Rayet galaxy at z$sim$2

Posted by klaurent Cambridge

Kavli Affiliate: Roberto Maiolino | First 5 Authors: Mirko Curti, Mirko Curti, , , | Summary: We present the analysis of the stellar and interstellar medium (ISM) properties of MARTA-4327, a star-forming galaxy at z=2.224 observed by means of deep JWST/NIRSpec spectroscopy in both medium- and high-resolution gratings as part of the "Measuring Abundances at […]


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VQualA 2025 Challenge on Image Super-Resolution Generated Content Quality Assessment: Methods and Results

Posted by klaurent Peking

Kavli Affiliate: Li Xin Li | First 5 Authors: Yixiao Li, Yixiao Li, , , | Summary: This paper presents the ISRGC-Q Challenge, built upon the Image Super-Resolution Generated Content Quality Assessment (ISRGen-QA) dataset, and organized as part of the Visual Quality Assessment (VQualA) Competition at the ICCV 2025 Workshops. Unlike existing Super-Resolution Image Quality […]


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The Optical and Mechanical Design of POEMMA Balloon with Radio

Posted by klaurent Chicago

Kavli Affiliate: Stephan Meyer | First 5 Authors: Eric Mayotte, Eric Mayotte, , , | Summary: POEMMA Balloon with Radio (PBR) is a NASA super-pressure balloon mission building toward the proposed Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) dual satellite mission. In its planned 2027 launch, PBR will study Ultra-High-Energy Cosmic Rays, Neutrinos, and High-Altitude Horizontal […]


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The Optical and Mechanical Design of POEMMA Balloon with Radio

Posted by klaurent Chicago

Kavli Affiliate: Stephan Meyer | First 5 Authors: Eric Mayotte, Eric Mayotte, , , | Summary: POEMMA Balloon with Radio (PBR) is a NASA super-pressure balloon mission building toward the proposed Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) dual satellite mission. In its planned 2027 launch, PBR will study Ultra-High-Energy Cosmic Rays, Neutrinos, and High-Altitude Horizontal […]


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Coefficients-Preserving Sampling for Reinforcement Learning with Flow Matching

Posted by klaurent Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Feng Wang, Feng Wang, , , | Summary: Reinforcement Learning (RL) has recently emerged as a powerful technique for improving image and video generation in Diffusion and Flow Matching models, specifically for enhancing output quality and alignment with prompts. A critical step for applying online RL methods […]


Continue.. Coefficients-Preserving Sampling for Reinforcement Learning with Flow Matching

Coefficients-Preserving Sampling for Reinforcement Learning with Flow Matching

Posted by klaurent Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Feng Wang, Feng Wang, , , | Summary: Reinforcement Learning (RL) has recently emerged as a powerful technique for improving image and video generation in Diffusion and Flow Matching models, specifically for enhancing output quality and alignment with prompts. A critical step for applying online RL methods […]


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Sensory Compression as a Unifying Principle for Action Chunking and Time Coding in the Brain

Posted by dbos UCSD / Salk

Kavli Affiliate: Marcelo Mattar | Authors: Sreejan Kumar, Matthieu B Le Cauchois, Alexander Mathis, Lea Duncker, Jonathon R. Howlett and Marcelo G. Mattar | Summary: The brain seamlessly transforms sensory information into precisely-timed movements, enabling us to type familiar words, play musical instruments, or perform complex motor routines with millisecond precision. This process often involves […]


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Depth-Aware Super-Resolution via Distance-Adaptive Variational Formulation

Posted by klaurent Berkeley

Kavli Affiliate: Feng Wang | First 5 Authors: Tianhao Guo, Tianhao Guo, , , | Summary: Single image super-resolution traditionally assumes spatially-invariant degradation models, yet real-world imaging systems exhibit complex distance-dependent effects including atmospheric scattering, depth-of-field variations, and perspective distortions. This fundamental limitation necessitates spatially-adaptive reconstruction strategies that explicitly incorporate geometric scene understanding for optimal […]


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LM-Searcher: Cross-domain Neural Architecture Search with LLMs via Unified Numerical Encoding

Posted by klaurent Peking

Kavli Affiliate: Ke Wang | First 5 Authors: Yuxuan Hu, Yuxuan Hu, , , | Summary: Recent progress in Large Language Models (LLMs) has opened new avenues for solving complex optimization problems, including Neural Architecture Search (NAS). However, existing LLM-driven NAS approaches rely heavily on prompt engineering and domain-specific tuning, limiting their practicality and scalability […]


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