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Retrieval-Augmented Generation (RAG) grounds large language models with external evidence, but many implementations rely on pre-built indices that remain static after construction. Related queries therefore repeat similar multi-hop…

人工智能 · 计算机科学 2026-03-03 Yifan Wang , Mingxuan Jiang , Zhihao Sun , Yixin Cao , Yicun Liu , Keyang Chen , Guangnan Ye , Hongfeng Chai

State space models (SSMs) have emerged as a powerful framework for modelling long-range dependencies in sequence data. Unlike traditional recurrent neural networks (RNNs) and convolutional neural networks (CNNs), SSMs offer a structured and…

机器学习 · 计算机科学 2024-10-07 Siddhanth Bhat

Sequence modeling is currently dominated by causal transformer architectures that use softmax self-attention. Although widely adopted, transformers require scaling memory and compute linearly during inference. A recent stream of work…

In this paper, we consider nonconvex minimax optimization, which is gaining prominence in many modern machine learning applications such as GANs. Large-scale edge-based collection of training data in these applications calls for…

最优化与控制 · 数学 2022-03-10 Pranay Sharma , Rohan Panda , Gauri Joshi , Pramod K. Varshney

Long-range time series forecasting remains challenging, as it requires capturing non-stationary and multi-scale temporal dependencies while maintaining noise robustness, efficiency, and stability. Transformer-based architectures such as…

机器学习 · 计算机科学 2025-09-03 Stefan-Alexandru Jura , Mihai Udrescu , Alexandru Topirceanu

Reduced rank nonlinear filters are increasingly utilized in data assimilation of geophysical flows, but often require a set of ensemble forward simulations to estimate forecast covariance. On the other hand, predictor-corrector type nudging…

计算物理 · 物理学 2020-08-26 Suraj Pawar , Shady E. Ahmed , Omer San , Adil Rasheed , Ionel M. Navon

Recently, cross-spectral image patch matching based on feature relation learning has attracted extensive attention. However, performance bottleneck problems have gradually emerged in existing methods. To address this challenge, we make the…

计算机视觉与模式识别 · 计算机科学 2024-12-17 Chuang Yu , Yunpeng Liu , Jinmiao Zhao , Xiangyu Yue

State-space models (SSMs) offer efficient alternatives to Transformers for long sequences, but their fixed-size recurrent state limits capability on algorithmic tasks, such as retrieving past context. In this work, we examine how in-context…

机器学习 · 计算机科学 2025-06-12 Aviv Bick , Eric Xing , Albert Gu

Efficient key-value (KV) cache management is crucial for the practical deployment of large language models (LLMs), yet existing compression techniques often incur a trade-off between performance degradation and computational overhead. We…

机器学习 · 计算机科学 2026-02-10 Jang-Hyun Kim , Dongyoon Han , Sangdoo Yun

In the classical Kalman filter(KF), the estimated state is a linear combination of the one-step predicted state and measurement state, their confidence level change when the prediction mean square error matrix and covariance matrix of…

信号处理 · 电气工程与系统科学 2023-09-19 Benyang Gong , Jiacheng He , Gang Wang , Bei Peng

Human motion generation is a cut-edge area of research in generative computer vision, with promising applications in video creation, game development, and robotic manipulation. The recent Mamba architecture shows promising results in…

计算机视觉与模式识别 · 计算机科学 2025-04-17 Zeyu Zhang , Hang Gao , Akide Liu , Qi Chen , Feng Chen , Yiran Wang , Danning Li , Rui Zhao , Zhenming Li , Zhongwen Zhou , Hao Tang , Bohan Zhuang

We introduce Kalman Gradient Descent, a stochastic optimization algorithm that uses Kalman filtering to adaptively reduce gradient variance in stochastic gradient descent by filtering the gradient estimates. We present both a theoretical…

机器学习 · 统计学 2018-10-30 James Vuckovic

Building learning agents that can progressively learn and accumulate knowledge is the core goal of the continual learning (CL) research field. Unfortunately, training a model on new data usually compromises the performance on past data. In…

Structured state-space models (SSMs) such as S4, stemming from the seminal work of Gu et al., are gaining popularity as effective approaches for modeling sequential data. Deep SSMs demonstrate outstanding performance across a diverse set of…

机器学习 · 计算机科学 2025-01-07 Nicola Muca Cirone , Antonio Orvieto , Benjamin Walker , Cristopher Salvi , Terry Lyons

This paper proposes a novel localization framework based on collaborative training or federated learning paradigm, for highly accurate localization of autonomous vehicles. More specifically, we build on the standard approach of KalmanNet, a…

机器人学 · 计算机科学 2025-02-14 Nikos Piperigkos , Alexandros Gkillas , Christos Anagnostopoulos , Aris S. Lalos

We propose a simple yet effective alternative to reward normalization in policy gradient reinforcement learning by integrating a 1D Kalman filter for online reward estimation. Instead of relying on fixed heuristics, our method recursively…

机器学习 · 计算机科学 2026-04-28 Zixuan Xia , Quanxi Li

Retrieval-augmented generation (RAG) systems often rely on static retrieval, limiting adaptation to evolving intent and content drift. We introduce Dynamic Memory Alignment (DMA), an online learning framework that systematically…

人工智能 · 计算机科学 2025-11-10 Yu Bai , Yukai Miao , Dawei Wang , Li Chen , Fei Long , Rundi Zhai , Dan Li , Yanyu Ren , Tianfeng Liu , Hongtao Xie , Ce Yang , Xuhui Cai

Although recent deep learning methods, especially generative models, have shown good performance in fast magnetic resonance imaging, there is still much room for improvement in high-dimensional generation. Considering that internal…

计算机视觉与模式识别 · 计算机科学 2022-12-13 Wei Zhang , Zengwei Xiao , Hui Tao , Minghui Zhang , Xiaoling Xu , Qiegen Liu

Training large language models (LLMs) typically relies on adaptive optimizers like Adam (Kingma & Ba, 2015) which store additional state information to accelerate convergence but incur significant memory overhead. Recent efforts, such as…

机器学习 · 计算机科学 2025-02-11 Meyer Scetbon , Chao Ma , Wenbo Gong , Edward Meeds

Graph Neural Networks (GNNs) have achieved impressive performance in collaborative filtering. However, GNNs tend to yield inferior performance when the distributions of training and test data are not aligned well. Also, training GNNs…

机器学习 · 计算机科学 2023-07-19 Huiyuan Chen , Chin-Chia Michael Yeh , Yujie Fan , Yan Zheng , Junpeng Wang , Vivian Lai , Mahashweta Das , Hao Yang