Preprint: Euclidean Prototypes Led on Accuracy, Hyperbolic on Local Recall
A study of about 81,446 paintings found a split: Euclidean prototypes classified styles better, while hyperbolic prototypes showed stronger local recall.
Search
2,230 results
761–780
Type A Hessenberg Dimensions Hold Within Sheets When h Is Fixed
Preprint: With the Hessenberg function fixed, matrices in one sheet produce type A Hessenberg varieties with the same dimension.
Mathematicians identify when long-range networks recur
Preprint: New theorems set out sufficient conditions for recurrence in one- and two-dimensional random graph models, while phase boundaries remain open.
Preprint reports faster, more accurate water-wave simulations
A two-way model links a 2D wave calculation to a localized 3D fluid solver, with lower reported errors and faster runtimes in numerical tests.
Deep MEG data linked to stronger speech-decoding tests
Preprint: A 104.2-hour release combines deep recordings from one volunteer with broader data from 32 others.
Preprint reports smaller access-weighted proofs in Ethereum replay
ArXiv version 1 preprint: The report compares a tiered design with MPT and UBT in an Ethereum StateDB replay and controlled benchmarks.
PDE hedge may price some claims above the minimum
An arXiv preprint links the equation's minimum-capital result to an equivalent local martingale measure, while simulations show close tracking without one.
Study finds one intermediate can reduce waste in thermodynamic changes
Preprint: A mathematical model identifies unique intermediate states that reduce dissipated work and shows how reaction time can change an enzyme strategy.
TOI-4468 hosts a hot Jupiter and a nearby outer planet
Preprint: The system also shows an unconfirmed 624-day radial-velocity signal that may be an outer giant.
Cobalt ordering may explain antiferromagnetism near 250 K
Preprint findings link a 250 K antiferromagnetic transition to a calculated cobalt-rich layer and unusual electronic states.
Structured Graphs Get Quadratic-Time All-Pairs Shortest Paths
Preprint: Theoretical algorithms also give quadratic matrix products and near-linear searches for four- and five-vertex cliques in these graph classes.
Preprint proposes depth-preserving route to NC1 pseudorandom functions
An arXiv version 1 preprint dated 25 Aug 2026 reports a generic construction that turns weak pseudorandom functions into strong ones at the same asymptotic depth, with conditional routes from LWE, LPN and CDH.
Preprint presents a three-ball counterexample to Escobar's bound
An explicit polynomial deformation has positive Ricci curvature and a strictly convex boundary, yet its first nonzero Steklov eigenvalue lies below the boundary's minimum curvature.
Automotive Security Analysis Puts Chip Design at the Center
Preprint: A qualitative analysis says hardware security modules could anchor secure boot and protect keys, but leaves performance and attack resistance unmeasured.
AI system scores 97.5% in early hardware compatibility checks
An arXiv preprint reports a structured way to check documentation-level interfaces with 8.6-fold less input than one-shot full-document prompting.
Turn-taking systems spot interruptions differently across conversation styles
Preprint: A benchmark of six English conversation styles found type-dependent interruption false positives, while no tested system combined speed, selectivity and high recall.
Preprint reports exact two-hidden-layer models for MAX functions
The mathematical preprint reports constructions for MAX5 through MAX8, while its method could not reach MAX9 or MAX10.
Voice-controlled bionic hand performs simple gestures in tests
Preprint: An engineering prototype linked voice commands to preset hand gestures and tested basic grasps, but human-user performance remains untested.
Study finds participants confused account changes with device security
Preprint: In 168 laboratory sessions, participants often judged generic password and update advice complete before reaching the intended device-level outcome.
Quantum spin model shows signs of a gapless nodal state
Preprint findings point to a nodal Bose liquid in finite systems and a possible nearby gapped phase under one model deformation.