💻 computer science

Temporal Reliability of ChatGPT-Generated Bilingual Texts: Implications for AI-Assisted Language Learning and Multilingual Information Access

This study evaluates the temporal reliability of four successive ChatGPT versions in bilingual translation across finance, technology, and public policy domains, revealing that model updates do not guarantee consistent improvements in semantic accuracy or readability and instead exhibit diverging performance trajectories that necessitate continuous, domain-specific evaluations for AI-assisted language applications.

Zhihan Fu2026-07-22
💻 computer science

DERMA-Agent: An Agentic Framework for Prognostic Discovery in Pan-Cancer Pathology

DERMA-Agent is a novel agentic framework that leverages multimodal foundation models and dynamic statistical execution to autonomously generate and validate morphomolecular prognostic signatures from pan-cancer whole slide images, addressing the limitations of static supervised models through iterative hypothesis discovery while maintaining rigorous safety controls in a retrospective research setting.

Gurumurthy Swaminathan2026-07-22
💻 computer science

Predictable Emergence: An Empirical Analysis of Whether Sharp Capability Jumps Follow from Smooth Per-Token Scaling Laws

This paper demonstrates that the sharp "emergent" jumps in exact-match accuracy observed in multi-digit integer addition are not genuine discontinuities in model capability but are instead fully predictable artifacts resulting from smooth, power-law improvements in per-token accuracy compounded by the nonlinearity of requiring all digits to be correct.

Alexander Memming2026-07-22
💻 computer science

The Three-Force Phase Diagram of Mixture-of Experts: Gradient Alignment Theory and Causal Veri cation on Mixtral 8×7B

This paper introduces the cross-expert gradient alignment metric (Γ) to demonstrate that standard Mixture-of-Experts training, particularly in Mixtral 8×7B, is fundamentally driven by a structural zero-sum competition caused by the combined negative effects of softmax coupling and top-k normalization, which creates a persistent negative alignment attractor that can only be overcome by removing these specific architectural constraints.

庆君 张2026-07-22
💻 computer science

MESH for Incremental Digital-physical system (MESH4ID): A Headset-Centred Virtual Reality Pipeline

This paper introduces MESH4ID, a headset-centered virtual reality pipeline built on Unity/OpenXR that enables users to capture, manage, and reconstruct indoor environments by freezing live LiDAR streams into traceable snapshots for interactive inspection and on-demand mesh generation within an immersive VR setting.

Simone Cantarelli, Daniela Francia, Gian Maria Santi, Alfredo Liverani2026-07-22