Tracing 3D Anatomy in 2D Strokes: A Multi-Stage Projection Driven Approach to Cervical Spine Fracture Identification

This paper presents an automated, multi-stage pipeline that identifies cervical spine fractures by fusing orthogonal 2D segmentations to estimate 3D volumes of interest, which are then analyzed using a 2.5D CNN-Transformer ensemble to achieve diagnostic performance comparable to expert radiologists while reducing computational dimensionality.

Fabi Nahian Madhurja, Rusab Sarmun, Muhammad E. H. Chowdhury + 3 more2026-03-05🤖 cs.AI

Synthetic Augmentation in Imbalanced Learning: When It Helps, When It Hurts, and How Much to Add

This paper establishes a unified statistical framework demonstrating that synthetic augmentation in imbalanced learning is not universally beneficial, revealing that its efficacy and optimal quantity depend on local data symmetry and generator alignment, and proposing a Validation-Tuned Synthetic Size (VTSS) strategy to empirically determine the best augmentation level.

Zhengchi Ma, Anru R. Zhang2026-03-05🤖 cs.LG

No More, No Less: Least-Privilege Language Models

This paper proposes a new deployment paradigm for language models called "Least-Privilege Language Models," which introduces a mechanism to dynamically restrict a model's internal computational capabilities during inference—rather than just filtering outputs—thereby enabling fine-grained, policy-driven control over specific functionalities without the need for retraining.

Paulius Rauba, Dominykas Seputis, Patrikas Vanagas + 1 more2026-03-05🤖 cs.LG

HealthMamba: An Uncertainty-aware Spatiotemporal Graph State Space Model for Effective and Reliable Healthcare Facility Visit Prediction

The paper proposes HealthMamba, an uncertainty-aware spatiotemporal graph state space model that integrates a unified context encoder, a novel GraphMamba architecture, and comprehensive uncertainty quantification to significantly improve the accuracy and reliability of healthcare facility visit predictions across four large-scale real-world datasets.

Dahai Yu, Lin Jiang, Rongchao Xu + 1 more2026-03-05🤖 cs.AI

Rewards as Labels: Revisiting RLVR from a Classification Perspective

This paper proposes "Rewards as Labels" (REAL), a novel framework that reformulates Reinforcement Learning with Verifiable Rewards as a classification problem to address gradient misassignment and domination issues in methods like GRPO, thereby achieving superior training stability and performance on mathematical reasoning benchmarks compared to state-of-the-art baselines.

Zepeng Zhai, Meilin Chen, Jiaxuan Zhao + 3 more2026-03-05🤖 cs.LG

It's TIME: Towards the Next Generation of Time Series Forecasting Benchmarks

This paper introduces TIME, a next-generation, task-centric benchmark comprising 50 fresh datasets and 98 forecasting tasks that addresses critical limitations in existing evaluations by ensuring data integrity, aligning with real-world requirements, and proposing a novel pattern-level perspective to rigorously assess the zero-shot generalization capabilities of time series foundation models.

Zhongzheng Qiao, Sheng Pan, Anni Wang + 7 more2026-03-05🤖 cs.LG