Interpretable Pre-Release Baseball Pitch Type Anticipation from Broadcast 3D Kinematics

This paper presents a scalable, interpretable framework that achieves 80.4% accuracy in classifying eight professional baseball pitch types using only monocular 3D body kinematics, revealing that upper-body mechanics—particularly wrist position and trunk tilt—are the primary predictors while establishing an empirical ceiling for grip-based distinctions.

Jerrin Bright, Michelle Lu, John Zelek2026-03-06🤖 cs.AI

How Does the ReLU Activation Affect the Implicit Bias of Gradient Descent on High-dimensional Neural Network Regression?

This paper demonstrates that for high-dimensional random data, gradient descent on shallow ReLU networks exhibits an implicit bias that approximates the minimum L2L_2-norm solution with high probability, bridging the gap between worst-case non-existence and exact orthogonality results through a novel primal-dual analysis.

Kuo-Wei Lai, Guanghui Wang, Molei Tao + 1 more2026-03-06🔢 math

VPWEM: Non-Markovian Visuomotor Policy with Working and Episodic Memory

This paper introduces VPWEM, a non-Markovian visuomotor policy that combines a sliding window of recent observations with a Transformer-based episodic memory compressor to efficiently retain long-term context for robotic control, achieving significant performance improvements over state-of-the-art baselines on memory-intensive manipulation tasks while maintaining constant computational costs.

Yuheng Lei, Zhixuan Liang, Hongyuan Zhang + 1 more2026-03-06🤖 cs.AI

EVMbench: Evaluating AI Agents on Smart Contract Security

The paper introduces EVMbench, a benchmarking framework that evaluates the capabilities of frontier AI agents in detecting, patching, and exploiting smart contract vulnerabilities within a realistic local Ethereum environment, revealing their ability to successfully execute end-to-end attacks against live blockchain instances.

Justin Wang, Andreas Bigger, Xiaohai Xu, Justin W. Lin, Andy Applebaum, Tejal Patwardhan, Alpin Yukseloglu, Olivia Watkins2026-03-06🔒 cs.CR

BandPO: Bridging Trust Regions and Ratio Clipping via Probability-Aware Bounds for LLM Reinforcement Learning

This paper introduces BandPO, a novel reinforcement learning algorithm that replaces PPO's fixed clipping mechanism with a dynamic, probability-aware operator to resolve the exploration bottleneck and entropy collapse caused by suppressing high-advantage low-probability actions, thereby achieving superior stability and performance across diverse models.

Yuan Li, Bo Wang, Yufei Gao + 4 more2026-03-06🤖 cs.AI

Semantic Communication-Enhanced Split Federated Learning for Vehicular Networks: Architecture, Challenges, and Case Study

This paper proposes a Semantic Communication-Enhanced U-Shaped Split Federated Learning (SC-USFL) framework for vehicular networks that integrates a semantic communication module and a network status monitor to reduce communication overhead, enhance label privacy, and adaptively optimize transmission rates under dynamic channel conditions.

Lu Yu, Zheng Chang, Ying-Chang Liang2026-03-06🤖 cs.LG

WaterSIC: information-theoretically (near) optimal linear layer quantization

This paper introduces WaterSIC, a novel linear layer quantization algorithm that achieves information-theoretically near-optimal performance by allocating different quantization rates to weight columns via a waterfilling strategy, thereby significantly outperforming existing methods like GPTQ and establishing new state-of-the-art results for LLMs across 1 to 4-bit quantization rates.

Egor Lifar, Semyon Savkin, Or Ordentlich + 1 more2026-03-06🔢 math

Mixture of Universal Experts: Scaling Virtual Width via Depth-Width Transformation

The paper introduces Mixture of Universal Experts (MOUE), a novel Mixture-of-Experts architecture that scales model capacity by converting depth into "virtual width" through a universal expert pool shared across layers, utilizing a staggered rotational topology and specialized routing mechanisms to overcome scalability limits and outperform traditional MoE baselines.

Yilong Chen, Naibin Gu, Junyuan Shang + 8 more2026-03-06🤖 cs.AI