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Oversampling techniques for predicting COVID-19 patient length of stay

arXiv:2511.15048v1 Announce Type: new Abstract: COVID-19 is a respiratory disease that caused a global pandemic in 2019. It is highly infectious and has the following symptoms: fever or chills, cough, shortness of breath, fatigue, muscle or body aches, headache, the…

Global Convergence of Four-Layer Matrix Factorization under Random Initialization

arXiv:2511.09925v2 Announce Type: replace-cross Abstract: Gradient descent dynamics on the deep matrix factorization problem is extensively studied as a simplified theoretical model for deep neural networks. Although the convergence theory for two-layer matrix factorization is well-established, no global convergence guarantee…

Near-optimal delta-convex estimation of Lipschitz functions

arXiv:2511.15615v1 Announce Type: cross Abstract: This paper presents a tractable algorithm for estimating an unknown Lipschitz function from noisy observations and establishes an upper bound on its convergence rate. The approach extends max-affine methods from convex shape-restricted regression to the…

Fourier-KAN-Mamba: A Novel State-Space Equation Approach for Time-Series Anomaly Detection

arXiv:2511.15083v1 Announce Type: new Abstract: Time-series anomaly detection plays a critical role in numerous real-world applications, including industrial monitoring and fault diagnosis. Recently, Mamba-based state-space models have shown remarkable efficiency in long-sequence modeling. However, directly applying Mamba to anomaly detection…

Planning-Aware Code Infilling via Horizon-Length Prediction

arXiv:2410.03103v4 Announce Type: replace Abstract: Fill-in-the-Middle (FIM), or infilling, has become integral to code language models, enabling generation of missing code given both left and right contexts. However, the current FIM training paradigm which performs next-token prediction (NTP) over reordered…