A Robot Vocabulary Maps the Work of Construction Crews
A preprint lays out 41 reusable activity primitives from occupational records and videos, then scripts selected ones on a robot arm and hand.
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Video-based AI labels score higher in LiDAR tests
Preprint: Models trained with video-derived 3D LiDAR labels scored higher than models trained with SAM2 labels, but below full ground truth.
Preprint counts 28 quasi-Galois points on a Fermat quartic
The exact result includes four Galois points and 24 non-Galois points, alongside tests for identifying related points on smooth quartic surfaces.
Video AI model pairs 3D control with near-real-time output
Preprint: A system uses one 3D-track representation for camera and object motion, while a distilled version reaches 20.6 frames per second in tests.
Model suggests parity can mute long-range exciton coupling
Preprint: A hydrogenic model predicts strong same-parity suppression, while mass asymmetry and spatial separation change the calculated coupling.
Model predicts particle-production shift in p-O collisions
This preprint uses preliminary ALICE data to predict that the strongest production shifts from the oxygen side to the proton side in more peripheral collisions.
Event tokens improve industrial recommendation metrics in tests
Preprint: A cached event representation outperformed named baselines on offline ranking and retrieval metrics in industrial logs.
Adaptive video agent reports higher benchmark accuracy
A preprint reports an agent that chooses tools for each question and revisits weak evidence before answering.
Preprint reports a sharp accuracy cliff in network compression
A graph-based framework was tested on three trained networks; accuracy was nearly unchanged at small error settings, then fell steeply as the allowance grew.
AI Memory System Scores Higher Than Long Context in Mixed-Topic Tests
Preprint tests episode reconstruction on 3,000 counterfactually constructed questions and reports higher accuracy with much smaller prompts.
Global ocean model study reports modest overhead for non-hydrostatic flow
Preprint: An AC/DC solver matched key wave and idealized convection tests, while its projected runtime was about 1.36 times the hydrostatic step.
Full Pauli-Fierz model hits a hurdle in ground-state decay estimates
Preprint: Conditional lower bounds are obtained for both versions of the model, but the full model's direct Agmon estimate loses uniform control as the time horizon grows.
Mathematical study links coding discrepancy to near-perfect tiling
Preprint finds that near-minimum discrepancy is tied to more uniform coverage under stated mathematical conditions.
Theory shows data corruption can lower risk for restricted models
Preprint: A mathematical analysis finds the classical data-processing rule can fail when a learning system is limited to a constrained model class.
Exact clique counts extended for graphs avoiding a fixed tree
Preprint: A proof covers sufficiently large trees and clique sizes at least logarithmic in tree order, while triangles and other small cases remain open.
Robot model reports higher success while tracking progress and errors
An arXiv Preprint reports higher success for LM-X after training on heterogeneous robot trajectories, including failed policy rollouts, and testing it in simulation and on physical tasks.
Verified computation narrows energy range for hydrogen molecular ion
Preprint reports an operator-certified whole-space interval for H₂⁺, while a three-centre test shows transfer of the method but not a certified whole-space lower bound.
Simulations show how bee-like colonies could change their code
Preprint modeling finds direct pointing emerges under intermediate foraging difficulty and can shift to a gravity-referenced code in many tested settings, but it does not reconstruct real bee evolution.
Robot system using live touch feedback reports higher task success
A preprint tests TacForcing on six simulated and six real-world tasks, with higher reported average success than comparison systems.
A quantum ground state shows two kinds of spread at once
Preprint: A theoretical model predicts a momentum-space state that is neither fully localized nor evenly spread, but stronger-disorder behavior remains unresolved.