Preprint finds AI self-training gains can be measurement artifacts
An audit found apparent changes in an unchanged model, while external distillation reached more low-base problems than the tested self-training methods.
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2,111 results
1981–2000
Preprint: Frame choice can make strong dissipation look weak in a warm-inflation model
A theoretical study reports quantum-dominated fluctuations even when the defining frame is strongly dissipative and the model’s temperature exceeds the Hubble scale.
Preprint finds radiative-correction methods diverge most in SIDIS spin calculations
Two theoretical approaches give cross-section differences of about 2% to 7% at selected settings, while some radiation-related spin comparisons are far larger.
Preprint proposes a guard against unsupported physical precision in sparse models
The method keeps competing dictionary explanations in play and reports only the finest physical conclusion they jointly support.
Preprint links electron-drift oscillations to instability in laboratory reconnection
Laser-driven plasma measurements and models point to lower-hybrid drift instability, while key details remain unresolved.
Preprint tests a single-stick control system for tilt-wing eVTOLs
Simulations and early simulator feedback point to stable flight across phases, but the evidence does not yet show lower workload or real-aircraft performance.
Preprint sketches two-point route to recovering wave phase
A mathematical method uses a spherical reference wave to estimate a radiation solution’s far-field pattern from total-field intensities, while leaving finite-distance performance untested.
Preprint proposes a new way to build wave packets in quantum billiards
The formal method continues eigenfunctions beyond the boundary, but its numerical accuracy and long-term localization remain untested.
Preprint finds a 5.4% mismatch between two BAO catalogues
A radial cross-check found that the main SDSS transverse compilations did not agree, while one showed far more scatter than its quoted errors suggested.
Preprint shows restricted quantum-query algorithms can be simulated classically
Theoretical results cover parallel queries, fixed-round adaptivity and selected two-stage designs, while leaving fully adaptive algorithms unresolved.
Preprint proposes fixed power-factor settings for uncertain power injections
A mathematical model finds a closed-form cancellation setting that reaches the best possible worst-case voltage result when specific feasibility conditions hold.
Preprint builds a new arithmetic for ordered structures
A proof-based study answers several questions about sums, division, commutativity and representation within the class of linear orders.
Preprint reports direct images of vacuum fluctuations in an atomic quantum field
A two-dimensional potassium condensate showed scale-dependent spin fluctuations matching a zero-temperature prediction, with detector losses and an adiabaticity limit still in play.
Preprint extends graph-counting bounds beyond perfect matchings
New theorems set upper limits for graph factors and multigraph matchings, while a substantial gap remains for general connected graphs.
Preprint: Calibration left an LLM risk score unable to change forecasts
All four fitted LLM weights fell to zero in a next-day market-risk study; a headline-count feature helped one SPY variance test but produced mixed results elsewhere.
CalcSeg preprint tests AI model for difficult heart-scar mapping
The system combines 3D image context with confidence-aware training and reports benchmark results on 976 patients, but clinical outcomes were not assessed.
Preprint finds propagation can reshape silicon’s high-harmonic spectra
Simulations show reflected and transmitted signals can differ from the isolated microscopic response, complicating efforts to infer electronic structure from transmitted light.
Preprint maps bursts of star formation and clustered supernovae near the Sun
A reconstruction from young clusters highlights Orion, Vela, Sco-Cen and Cepheus, while showing that its rates cover only the cluster-traced part of local activity.
Preprint reports faster 3D hand reconstruction through occlusions
DreamHand led 45 of 48 primary benchmark comparisons, while its out-of-sight test measured wrist-aligned continuity rather than absolute hand position.
Preprint sets out an exact symbol framework for symmetry-respecting operators
A theorem-based study links equivariant operators on noncompact symmetric spaces to smooth Harish-Chandra multipliers under precise kernel conditions.