Adaptive AI teacher linked to higher maths scores in larger models
Preprint: The method reported higher benchmark scores at 4B and 8B, but lower scores at 1.7B.
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Preprint models near-zero service cost at a 15% power-reduction goal
An arXiv preprint describes Slasher, a system that modulates datacenter power while seeking to limit modeled impact on hosted workloads.
Atmospheric noise may matter more as gravity measurements improve
Preprint modeling finds standard pressure fluctuations below the current reference scale, but future precision targets demand tighter controls.
India's New Spherical Tokamak Reaches First Plasma, but Current Fades
Preprint: IPR reports 114 early discharges, including a detailed shot with a brief plasma-current signal and modeled induced vessel currents.
Graphene devices show electrical signals linked to spin resonance
A preprint reports resonant photovoltage in unbiased graphene and WSe2/graphene devices, with sign reversals near charge neutrality.
Chip Splits and Swaps Light Between Two Frequencies
Preprint: A silicon–lithium-niobate device delivered balanced splitting and near-complete frequency swapping at a 10 GHz separation.
JWST Models Point to Contrasting Clouds on Two Brown Dwarfs
Preprint: Models of two benchmark brown dwarfs find different cloud structures and a possible thermal inversion in one atmosphere.
Simulation reports different settling for cubes and spheres
Preprint: An OpenLB-LAMMPS model compares rigid cubes and spheres in hindered-settling simulations and reports system-wide velocity correlations.
New framework maps complex quantum circuits and flags model limits
Preprint: Theoretical work derives exact Hamiltonians and reduced dynamics from impedance or admittance responses.
AI Code Search Rankings Shift When Identifiers Are Renamed
Preprint: An offline evaluation found that carefully chosen identifier changes altered retrieval across models and five programming languages.
Electrical Pulses Are Linked to Selective YBCO Resistance Shifts
A preprint reports branch-specific resistance changes, opposite inferred oxygen-vacancy directions and faster relaxation at higher temperatures.
Preprint outlines a route to weighted bounds on Morrey spaces
An expository mathematical note presents a model sparse-operator estimate, carries it to Calderón–Zygmund operators under a stated condition, and marks the proof's limits.
Grounded dialogue policies retrieved images similarly; DCP-B lagged
Preprint: Three policies had similar image-retrieval scores, while DCP-B showed weak retrieval and very large high-revision grounding shifts.
Fourier proof rules out a class of Kerr quasinormal modes
Preprint: A mathematical analysis recasts the Whiting-transform argument with Fourier tools and finds that every quasinormal mode in a stated real-frequency class must vanish.
LLM data agents can get answers right despite flawed reasoning
Preprint: A 100-example test found that answer accuracy and trace validity often told different stories.
New Algorithm Reuses Sparse Graphs for Dynamic All-Pairs Queries
Preprint: A randomized method maintains approximate maxflow and effective-resistance answers as an undirected graph only gains or loses edges.
Mathematicians find a rotated semicircle law in random polynomials
Preprint: A theoretical analysis says permanental roots from Gaussian matrix ensembles approach a semicircle on the imaginary axis as matrices grow.
Quasar disk study finds size pattern at odds with thin-disk theory
Preprint analysis of seven lensed quasars reports a 13.3-light-day characteristic source size at 5007 Å and a wavelength trend that differs from the thin-disk prediction.
Critical operator limit reflects prime-coordinate concentration
Preprint: A proof-based analysis finds a uniform boundary limit, exact one-prime equality cases and certified finite approximations.
Adaptive wireless coding reports gains in changing networks
Preprint simulations and a 10-device testbed report stronger delivery under changing conditions, but the evidence remains limited to modeled and proof-of-concept settings.