Tootfinder

Extending the Entropic Potential of Events for Uncertainty Quantification and Decision-Making in Artificial Intelligence
Mark Zilberman
https://arxiv.org/abs/2508.10241 https://…

Extending the Entropic Potential of Events for Uncertainty Quantification and Decision-Making in Artificial Intelligence
This work demonstrates how the concept of the entropic potential of events -- a parameter quantifying the influence of discrete events on the expected future entropy of a system -- can enhance uncertainty quantification, decision-making, and interpretability in artificial intelligence (AI). Building on its original formulation in physics, the framework is adapted for AI by introducing an event-centric measure that captures how actions, observations, or other discrete occurrences impact uncertai…

Prediction of the SVOM MXT camera end of life spectral performance based onproton irradiation results
Clara Plasse, Diego G\"otz, Aline Meuris, Miguel Fernandez Moita, Philippe Ferrando, Leo Favier, Francesco Ceraudo
#toXiv_bot_toot

Laser Interferometer Lunar Antenna (LILA): Advancing the U.S. Priorities in Gravitational-wave and Lunar Science
Karan Jani, Matthew Abernathy, Emanuele Berti, Valerio Boschi, Sukanya Chakrabarti, Alice Cocoros, John W. Conklin, Teviet Creighton, Simone Dell'Agnello, Jean-Claude Diels, Stephen Eikenberry, T. Marshall Eubanks, Kiranjyot Gill, Jonathan E. Grindlay, Kris Izquierdo, Jaesung Lee, Abraham Loeb, Philippe Lognonn\'e, Francesco Longo, Manuel Pichardo Marcano, Mark Panni…

Laser Interferometer Lunar Antenna (LILA): Advancing the U.S. Priorities in Gravitational-wave and Lunar Science
The Laser Interferometer Lunar Antenna (LILA) is a next-generation gravitational-wave (GW) facility on the Moon. By harnessing the Moon's unique environment, LILA fills a critical observational gap in the mid-band GW spectrum ($0.1 - 10$ Hz) between terrestrial detectors (LIGO, Virgo, KAGRA) and the future space mission LISA. Observations enabled by LILA will fundamentally transform multi-messenger astrophysics and GW probes of fundamental physics. LILA will measure the lunar deep interior bett…

PELVaR: Probability equal level representation of Value at Risk through the notion of Flexible Expected Shortfall
Georgios I. Papayiannis, Georgios Psarrakos
https://arxiv.org/abs/2507.13562

PELVaR: Probability equal level representation of Value at Risk through the notion of Flexible Expected Shortfall
This paper proposes a novel perspective on the relationship between Value at Risk (VaR) and Expected Shortfall (ES) by employing the mixing framework of Flexible Expected Shortfall (FES) to construct coherent representations of VaR. The methodology enables a reinterpretation of VaR within a coherent risk measure framework, thereby addressing well-known limitations of VaR, including non-subadditivity and insensitivity to tail risk. A central feature of the framework is the flexibility parameter …

Multiply quantized vortex spectroscopy in a quantum fluid of light
Killian Guerrero, Kevin Falque, Elisabeth Giacobino, Alberto Bramati, Maxime J Jacquet
https://arxiv.org/abs/2507.14539

Multiply quantized vortex spectroscopy in a quantum fluid of light
The formation of quantized vortices is a unifying feature of quantum mechanical systems, making it a premier means for fundamental and comparative studies of different quantum fluids. Being excited states of motion, vortices are normally unstable towards relaxation into lower energy states. However, here we exploit the driven-dissipative nature of polaritonic fluids of light to create stationary, multiply charged vortices. We measure the spectrum of collective excitations and observe negative e…

A General Approach to the Shape Transition of Run-and-Tumble Particles: The 1D PDMP Framework for Invariant Measure Regularity
Leo Hahn
https://arxiv.org/abs/2506.02274

A General Approach to the Shape Transition of Run-and-Tumble Particles: The 1D PDMP Framework for Invariant Measure Regularity
Run-and-tumble particles (RTPs) have emerged as a paradigmatic example for studying nonequilibrium phenomena in statistical mechanics. The invariant measure of a wide class of RTPs subjected to a potential possesses a density, which is continuous when tumble rates are high and discontinuous when they are low. This key feature is known as shape transition. By comparison with the Boltzmann distribution characteristic of thermodynamic equilibrium, this constitutes a qualitative indicator of the re…

This https://arxiv.org/abs/2502.00168 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_sta…

Supervised Quadratic Feature Analysis: Information Geometry Approach for Dimensionality Reduction
Supervised dimensionality reduction aims to map labeled data to a low-dimensional feature space while maximizing class discriminability. Directly computing discriminability is often impractical, so an alternative approach is to learn features that maximize a distance or dissimilarity measure between classes. The Fisher-Rao distance is an important information geometry distance in statistical manifolds. It is induced by the Fisher information metric, a tool widely used for understanding neural r…

Sparse Imagination for Efficient Visual World Model Planning
Junha Chun, Youngjoon Jeong, Taesup Kim
https://arxiv.org/abs/2506.01392 https://

Sparse Imagination for Efficient Visual World Model Planning
World model based planning has significantly improved decision-making in complex environments by enabling agents to simulate future states and make informed choices. However, ensuring the prediction accuracy of world models often demands substantial computational resources, posing a major challenge for real-time applications. This computational burden is particularly restrictive in robotics, where resources are severely constrained. To address this limitation, we propose a Sparse Imagination fo…

New set of #Gentoo #Linux Distribution Kernels (6.1.143, 6.6.96, 6.12.36, 6.15.5) is out. This set brings some major changes:
• I've backported a bunch of changes from sys-kernel/gentoo-kernel to sys-kernel/vanilla-kernel that were missing — notably wider architecture support.
• I've added default #RISCV configs to 6.12 (in addition to 6.15), since Fedora had them.
• All three packages are based off the baseline kernel tarball upstream patch (vanilla-kernel used to fetch patch-level tarball every time, and gentoo-kernel* used genpatches for patch versions). This should reduce disk space and bandwidth use.
• All three packages now support verify-sig. Rather than verifying the uncompressed tarball signature, we now use upstream `sha256sums.asc` file to verify the compressed tarball and patch.
• sys-kernel/gentoo-kernel* now repackages genpatches. This means patchset that's much leaner and faster to apply (since we just fetch and use the combined upstream patch rather than including point patches). This also means that we are able to release Distribution Kernels before gentoo-sources are done.
The changes still need to be done to 5.15 and 5.10 branches — we're going to do for the next upstream releases of these.
#kernel

Anomalous slow-down of the bound state dynamics in a non-locally coupled quantum circuit
Biswajit Paul, Suman Mondal, Tapan Mishra
https://arxiv.org/abs/2506.09818

Anomalous slow-down of the bound state dynamics in a non-locally coupled quantum circuit
Additional hopping channels in a tight-binding lattice is known to introduce faster dynamics of a quantum mechanical particle. However, we show that in the case of a repulsively bound state, the dynamics becomes abnormally slow when next-nearest neighbor (NNN) hopping is allowed for the particles. We show that such slowing down occurs for some magic strength of the NNN hopping at which the bound state band exhibits a quasi-flatband feature. We reveal this anomalous dynamical behavior by analyzi…