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Currently, orthogonal time frequency space (OTFS) modulation has drawn much attention to reliable communications in high-mobility scenarios. This paper proposes a doubly-iterative sparsified minimum mean square error (DI-S-MMSE) turbo…

信号处理 · 电气工程与系统科学 2024-09-10 Haotian Li , Qiyue Yu

Federated Reinforcement Learning (FRL) has garnered increasing attention recently. However, due to the intrinsic spatio-temporal non-stationarity of data distributions, the current approaches typically suffer from high interaction and…

机器学习 · 计算机科学 2024-05-30 Sheng Yue , Xingyuan Hua , Lili Chen , Ju Ren

The recently developed Prior-Data Fitted Networks (PFNs) have shown very promising results for applications in low-data regimes. The TabPFN model, a special case of PFNs for tabular data, is able to achieve state-of-the-art performance on a…

Selected configuration interaction (SCI) methods are currently enjoying a resurgence due to several recent developments which improve either the overall computational efficiency or the compactness of the resulting SCI vector. These recent…

强关联电子 · 物理学 2020-12-18 Vibin Abraham , Nicholas J. Mayhall

Neural operators (NOs) are designed to learn maps between infinite-dimensional function spaces. We propose a novel reframing of their use. By introducing an auxiliary base-space, any finite-dimensional function can be viewed as an operator…

机器学习 · 计算机科学 2026-05-11 Vasilis Niarchos , Angelos Sirbu , Sokratis Trifinopoulos

Federated learning (FL) faces persistent robustness challenges due to non-IID data distributions and adversarial client behavior. A promising mitigation strategy is contribution evaluation, which enables adaptive aggregation by quantifying…

机器学习 · 计算机科学 2025-10-01 Guojun Tang , Jiayu Zhou , Mohammad Mamun , Steve Drew

Accurate travel time estimation (TTE) plays a crucial role in intelligent transportation systems. However, it remains challenging due to heterogeneous data sources and complex traffic dynamics. Moreover, traditional approaches typically…

机器学习 · 计算机科学 2026-01-27 Zhi Liu , Xuyuan Hu , Xiao Han , Zhehao Dai , Zhaolin Deng , Guojiang Shen , Xiangjie Kong

Motivated by the factorization inherent in the original fast multipole method and the improved fast Gauss transform we introduce a factorable form of attention that operates efficiently in high dimensions. This approach reduces the…

机器学习 · 计算机科学 2024-02-13 Armin Gerami , Monte Hoover , Pranav S. Dulepet , Ramani Duraiswami

While shallow decision trees may be interpretable, larger ensemble models like gradient-boosted trees, which often set the state of the art in machine learning problems involving tabular data, still remain black box models. As a remedy, the…

机器学习 · 计算机科学 2024-06-21 Maximilian Muschalik , Fabian Fumagalli , Barbara Hammer , Eyke Hüllermeier

Reinforcement Learning with Verifiable Reward (RLVR) effectively solves complex tasks but demands extremely long context lengths during training, leading to substantial computational costs. While multi-stage training can partially mitigate…

机器学习 · 计算机科学 2025-12-25 Xin Xu , Cliveb AI , Kai Yang , Tianhao Chen , Yang Wang , Saiyong Yang , Can Yang

Reliability-oriented sensitivity analysis aims at combining both reliability and sensitivity analyses by quantifying the influence of each input variable of a numerical model on a quantity of interest related to its failure. In particular,…

统计理论 · 数学 2022-10-25 Julien Demange-Chryst , François Bachoc , Jérôme Morio

In frequency-division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems, downlink channel state information (CSI) needs to be sent back to the base station (BS) by the users, which causes prohibitive feedback overhead.…

信息论 · 计算机科学 2023-06-06 Yifan Ma , Wentao Yu , Xianghao Yu , Jun Zhang , Shenghui Song , Khaled B. Letaief

Tactile Internet (TI) requires achieving ultra-low latency and highly reliable packet delivery for haptic signals. In the presence of packet loss and delay, the signal prediction method provides a viable solution for recovering the missing…

信号处理 · 电气工程与系统科学 2025-07-11 Mohammad Ali Vahedifar , Qi Zhang

In this paper, we aim at the problem of tensor data completion. Tensor-train decomposition is adopted because of its powerful representation ability and linear scalability to tensor order. We propose an algorithm named Sparse Tensor-train…

数值分析 · 计算机科学 2018-03-23 Longhao Yuan , Qibin Zhao , Jianting Cao

Safety is the priority concern when applying reinforcement learning (RL) algorithms to real-world control problems. While policy iteration provides a fundamental algorithm for standard RL, an analogous theoretical algorithm for safe RL…

机器学习 · 计算机科学 2025-03-14 Yujie Yang , Zhilong Zheng , Shengbo Eben Li , Wei Xu , Jingjing Liu , Xianyuan Zhan , Ya-Qin Zhang

Machine Learning models require a vast amount of data for accurate training. In reality, most data is scattered across different organizations and cannot be easily integrated under many legal and practical constraints. Federated Transfer…

密码学与安全 · 计算机科学 2019-10-31 Shreya Sharma , Xing Chaoping , Yang Liu , Yan Kang

In recent years, the application of tensors has become more widespread in fields that involve data analytics and numerical computation. Due to the explosive growth of data, low-rank tensor decompositions have become a powerful tool to…

数值分析 · 数学 2020-11-03 Lingjie Li , Wenjian Yu , Kim Batselier

We propose a method (TT-GP) for approximate inference in Gaussian Process (GP) models. We build on previous scalable GP research including stochastic variational inference based on inducing inputs, kernel interpolation, and structure…

机器学习 · 计算机科学 2018-01-18 Pavel Izmailov , Alexander Novikov , Dmitry Kropotov

Efficient onboard multi-field sparse reconstruction is essential for the autonomous operation of aerospace vehicles. While existing deep learning models exhibit promise for single-field reconstruction, deploying multiple independent models…

机器学习 · 计算机科学 2026-05-27 Siyu Ye , Shihang Li , Zhiqiang Gong , Benrong Zhang , Weien Zhou , Yiyong Huang , Wen Yao

Although Shapley values have been shown to be highly effective for identifying harmful training instances, dataset size and model complexity constraints limit the ability to apply Shapley-based data valuation to fine-tuning large…

计算与语言 · 计算机科学 2023-06-21 Stephanie Schoch , Ritwick Mishra , Yangfeng Ji