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Random-feature-based attention (RFA) is an efficient approximation of softmax attention with linear runtime and space complexity. However, the approximation gap between RFA and conventional softmax attention is not well studied. Built upon…

机器学习 · 计算机科学 2023-02-10 Lin Zheng , Jianbo Yuan , Chong Wang , Lingpeng Kong

Transformer based models are increasingly being used in various domains including recommender systems (RS). Pretrained transformer models such as BERT have shown good performance at language modelling. With the greater ability to model…

信息检索 · 计算机科学 2025-01-03 Uzma Mushtaque

Multivariate time series forecasting focuses on predicting future values based on historical context. State-of-the-art sequence-to-sequence models rely on neural attention between timesteps, which allows for temporal learning but fails to…

机器学习 · 计算机科学 2023-03-21 Jake Grigsby , Zhe Wang , Nam Nguyen , Yanjun Qi

Unsupervised domain adaptation (UDA) of time series aims to teach models to identify consistent patterns across various temporal scenarios, disregarding domain-specific differences, which can maintain their predictive accuracy and…

机器学习 · 计算机科学 2024-09-19 Huanyu Zhang , Yi-Fan Zhang , Zhang Zhang , Qingsong Wen , Liang Wang

Accurate accident anticipation is essential for enhancing the safety of autonomous vehicles (AVs). However, existing methods often assume ideal conditions, overlooking challenges such as sensor failures, environmental disturbances, and data…

人工智能 · 计算机科学 2025-11-11 Xingcheng Liu , Yanchen Guan , Haicheng Liao , Zhengbing He , Zhenning Li

The field of time series forecasting is rapidly advancing, with recent large-scale Transformers and lightweight Multilayer Perceptron (MLP) models showing strong predictive performance. However, conventional Transformer models are often…

机器学习 · 计算机科学 2025-08-13 Zheng Zhou , Yu-Jie Xiong , Jia-Chen Zhang , Chun-Ming Xia , Xi-Jiong Xie

Bearing fault detection is a critical task in predictive maintenance, where accurate and timely fault identification can prevent costly downtime and equipment damage. Traditional attention mechanisms in Transformer neural networks often…

机器学习 · 计算机科学 2024-12-17 Marzieh Mirzaeibonehkhater , Mohammad Ali Labbaf-Khaniki , Mohammad Manthouri

High-resolution remote sensing (HRRS) image segmentation is challenging due to complex spatial layouts and diverse object appearances. While CNNs excel at capturing local features, they struggle with long-range dependencies, whereas…

计算机视觉与模式识别 · 计算机科学 2025-05-26 Yichun Yu , Yuqing Lan , Zhihuan Xing , Xiaoyi Yang , Tingyue Tang , Dan Yu

In recent work on time-series prediction, Transformers and even large language models have garnered significant attention due to their strong capabilities in sequence modeling. However, in practical deployments, time-series prediction often…

机器学习 · 计算机科学 2026-02-17 Wenxuan Xie , Fanpu Cao

How to best develop foundational models for time series forecasting remains an important open question. Tokenization is a crucial consideration in this effort: what is an effective discrete vocabulary for a real-valued sequential input? To…

Weather prediction is a quintessential problem involving the forecasting of a complex, nonlinear, and chaotic high-dimensional dynamical system. This work introduces an efficient reduced-order modeling (ROM) framework for short-range…

机器学习 · 计算机科学 2025-11-18 Amirpasha Hedayat , Karthik Duraisamy

Although LoRa is predominantly employed with the single-hop LoRaWAN protocol, recent advancements have extended its application to multi-hop mesh topologies. Designing efficient routing for LoRa mesh networks remains challenging due to…

网络与互联网体系结构 · 计算机科学 2025-10-07 Nalith Udugampola , Xiaoyu Ai , Binghao Li , Henry Gong , Aruna Seneviratne

Many real-world IoT systems, which include a variety of internet-connected sensory devices, produce substantial amounts of multivariate time series data. Meanwhile, vital IoT infrastructures like smart power grids and water distribution…

机器学习 · 计算机科学 2022-01-19 Zekai Chen , Dingshuo Chen , Xiao Zhang , Zixuan Yuan , Xiuzhen Cheng

Designing effective models for learning time series representations is foundational for time series analysis. Many previous works have explored time series representation modeling approaches and have made progress in this area. Despite…

机器学习 · 计算机科学 2024-12-17 Mingyue Cheng , Jiqian Yang , Tingyue Pan , Qi Liu , Zhi Li

Multivariate time-series forecasting holds immense value across diverse applications, requiring methods to effectively capture complex temporal and inter-variable dynamics. A key challenge lies in uncovering the intrinsic patterns that…

机器学习 · 计算机科学 2025-03-12 Liang Yu , Lai Tu , Xiang Bai

How to adapt a pre-trained model continuously for sequential tasks with different prediction class labels and domains and finally learn a generalizable model across diverse tasks is a long-lasting challenge. Continual learning (CL) has…

机器学习 · 计算机科学 2025-04-15 Xiaobing Yu , Jin Yang , Xiao Wu , Peijie Qiu , Xiaofeng Liu

Recently, random feature attentions (RFAs) are proposed to approximate the softmax attention in linear time and space complexity by linearizing the exponential kernel. In this paper, we first propose a novel perspective to understand the…

机器学习 · 计算机科学 2022-06-16 Lin Zheng , Chong Wang , Lingpeng Kong

Transformer has shown promise in reinforcement learning to model time-varying features for obtaining generalized low-level robot policies on diverse robotics datasets in embodied learning. However, it still suffers from the issues of low…

机器学习 · 计算机科学 2024-12-19 Hengkai Tan , Songming Liu , Kai Ma , Chengyang Ying , Xingxing Zhang , Hang Su , Jun Zhu

Recent advancements in keypoint detection and descriptor extraction have shown impressive performance in local feature learning tasks. However, existing methods generally exhibit suboptimal performance under extreme conditions such as…

计算机视觉与模式识别 · 计算机科学 2024-12-10 Jingtai He , Gehao Zhang , Tingting Liu , Songlin Du

The aggressive densification of modern wireless networks necessitates judicious resource allocation to mitigate severe mutual interference. However, classical iterative algorithms remain computationally prohibitive for real-time…

机器学习 · 计算机科学 2026-04-10 Yucheng Sheng , Jiacheng Wang , Le Liang , Hao Ye , Shi Jin