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相关论文: ODMixer: Fine-grained Spatial-temporal MLP for Met…

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LiDAR odometry (LO) describes the task of finding an alignment of subsequent LiDAR point clouds. This alignment can be used to estimate the motion of the platform where the LiDAR sensor is mounted on. Currently, on the well-known KITTI…

计算机视觉与模式识别 · 计算机科学 2021-06-15 Philipp Adis , Nicolas Horst , Mathias Wien

Time series forecasting remains a challenging task, particularly in the context of complex multiscale temporal patterns. This study presents LLM-Mixer, a framework that improves forecasting accuracy through the combination of multiscale…

Accurate spatial-temporal (ST) prediction for dynamic systems, such as urban mobility and weather patterns, is crucial but hindered by complex ST correlations and the challenge of concurrently modeling long-term trends with short-term…

机器学习 · 计算机科学 2025-07-15 Sina Ehsani , Fenglian Pan , Qingpei Hu , Jian Liu

Despite the significant research efforts on trajectory prediction for automated driving, limited work exists on assessing the prediction reliability. To address this limitation we propose an approach that covers two sources of error, namely…

机器人学 · 计算机科学 2023-08-07 Julian Wiederer , Julian Schmidt , Ulrich Kressel , Klaus Dietmayer , Vasileios Belagiannis

Herein, an atomic norm based method for accurately estimating the location and orientation of a target from millimeter-wave multi-input-multi-output (MIMO) orthogonal frequency-division multiplexing (OFDM) signals is presented. A novel…

信号处理 · 电气工程与系统科学 2022-09-21 Jianxiu Li , Maxime Ferreira Da Costa , Urbashi Mitra

Multi-modal recommendation systems, which integrate diverse types of information, have gained widespread attention in recent years. However, compared to traditional collaborative filtering-based multi-modal recommendation systems, research…

信息检索 · 计算机科学 2023-08-15 Wei Ji , Xiangyan Liu , An Zhang , Yinwei Wei , Yongxin Ni , Xiang Wang

Online multi-task learning (OMTL) enhances streaming data processing by leveraging the inherent relations among multiple tasks. It can be described as an optimization problem in which a single loss function is defined for multiple tasks.…

机器学习 · 计算机科学 2024-11-12 Ruiyu Li , Peilin Zhao , Guangxia Li , Zhiqiang Xu , Xuewei Li

Visual Place Recognition (VPR) in dynamic and perceptually aliased environments remains a fundamental challenge for long-term localization. Existing deep learning-based solutions predominantly focus on single-frame embeddings, neglecting…

计算机视觉与模式识别 · 计算机科学 2025-07-22 Zhenyu Li , Tianyi Shang , Pengjie Xu , Ruirui Zhang , Fanchen Kong

This paper addresses the mobility problem in massive multiple-input multiple-output systems, which leads to significant performance losses in the practical deployment of the fifth generation mobile communication networks. We propose a novel…

信息论 · 计算机科学 2022-08-04 Weidong Li , Haifan Yin , Ziao Qin , Yandi Cao , Merouane Debbah

We present SplitMixer, a simple and lightweight isotropic MLP-like architecture, for visual recognition. It contains two types of interleaving convolutional operations to mix information across spatial locations (spatial mixing) and…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Ali Borji , Sikun Lin

Orthogonal time frequency space (OTFS) modulation outperforms orthogonal frequency division multiplexing (OFDM) in high-mobility scenarios. One challenge for OTFS massive MIMO is downlink channel estimation due to the large number of base…

信息论 · 计算机科学 2019-06-26 Wenqian Shen , Linglong Dai , Jianping An , Pingzhi Fan , Robert W. Heath,

Taxi demand prediction is an important building block to enabling intelligent transportation systems in a smart city. An accurate prediction model can help the city pre-allocate resources to meet travel demand and to reduce empty taxis on…

机器学习 · 计算机科学 2018-02-28 Huaxiu Yao , Fei Wu , Jintao Ke , Xianfeng Tang , Yitian Jia , Siyu Lu , Pinghua Gong , Jieping Ye , Zhenhui Li

The acquisition of accurate channel state information (CSI) is of utmost importance since it provides performance improvement of wireless communication systems. However, acquiring accurate CSI, which can be done through channel estimation…

信息论 · 计算机科学 2023-06-01 Pedro E. G. Silva , Jules M. Moualeu , Pedro H. Nardelli , Rausley A. A. de Souza

We consider channel estimation specific to turbo equalization for multiple-input multiple-output (MIMO) wireless communication. We develop a soft-decision-driven sequential algorithm geared to the pipelined turbo equalizer architecture…

信息论 · 计算机科学 2015-03-19 Daejung Yoon , Jaekyun Moon

The orthogonal delay-Doppler division multiplexing (ODDM) modulation is a recently proposed multi-carrier modulation that features a realizable pulse orthogonal with respect to the delay-Doppler (DD) plane's fine resolutions. In this paper,…

信号处理 · 电气工程与系统科学 2024-10-24 Kehan Huang , Min Qiu , Jun Tong , Jinhong Yuan , Hai Lin

In this paper, channel estimation and data detection for multihop relaying orthogonal frequency division multiplexing (OFDM) system is investigated under time-varying channel. Different from previous works, which highly depend on the…

信息论 · 计算机科学 2012-05-25 Rui Min , Yik-Chung Wu

Accurate forecasting of traffic conditions is critical for improving safety, stability, and efficiency of a city transportation system. In reality, it is challenging to produce accurate traffic forecasts due to the complex and dynamic…

应用统计 · 统计学 2021-08-06 Tiange Wang , Zijun Zhang , Kwok-Leung Tsui

When deploying a trained machine learning model in the real world, it is inevitable to receive inputs from out-of-distribution (OOD) sources. For instance, in continual learning settings, it is common to encounter OOD samples due to the…

机器学习 · 计算机科学 2024-01-23 Chuanwen Feng , Wenlong Chen , Ao Ke , Yilong Ren , Xike Xie , S. Kevin Zhou

In this survey, we analyze the newest machine learning (ML) techniques for optical orthogonal frequency division multiplexing (O-OFDM)-based optical communications. ML has been proposed to mitigate channel and transceiver imperfections. For…

机器学习 · 计算机科学 2021-05-10 Hichem Mrabet , Elias Giaccoumidis , Iyad Dayoub

With the expansion of cities over time, URT (Urban Rail Transit) networks have also grown significantly. Demand prediction plays an important role in supporting planning, scheduling, fleet management, and other operational decisions. In…