arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2602.13282cs.NIcs.AI
收藏

GraFSTNet: 基于图的频率时空网络用于细胞交通预测

GraFSTNet: Graph-based Frequency SpatioTemporal Network for Cellular Traffic Prediction

Ziyi Li, Hui Ma, Fei Xing, Chunjiong Zhang, Ming Yan

AI总结:

GraFSTNet通过整合时空建模与时间-频率分析,有效捕捉蜂窝交通的周期性模式,提升预测准确性。

摘要:

随着蜂窝网络的快速扩展和移动设备的普及,蜂窝交通数据表现出复杂的时序动态和空间相关性,给准确的交通预测带来了挑战。以往的方法往往主要侧重于时序建模或依赖于预定义的空间拓扑结构,这限制了它们联合建模时空依赖性和有效捕捉蜂窝交通中的周期性模式的能力。为了解决这些问题,我们提出了一种蜂窝交通预测框架,该框架整合了时空建模与时间-频率分析。首先,我们构建了一个空间建模分支,通过注意力机制捕捉基站间的依赖关系,最小化对预定义拓扑结构的依赖。其次,我们构建了一个时间-频率建模分支,以增强周期性模式的表示。此外,我们引入了一个自适应尺度的LogCosh损失函数,该函数根据交通量调整误差惩罚,防止大误差主导训练过程,并帮助模型在不同交通强度下保持相对稳定的预测准确性。在三个开源数据集上的实验表明,所提出的方法在预测性能上优于最先进的方法。

英文摘要:

With rapid expansion of cellular networks and the proliferation of mobile devices, cellular traffic data exhibits complex temporal dynamics and spatial correlations, posing challenges to accurate traffic prediction. Previous methods often focus predominantly on temporal modeling or depend on predefined spatial topologies, which limits their ability to jointly model spatio-temporal dependencies and effectively capture periodic patterns in cellular traffic. To address these issues, we propose a cellular traffic prediction framework that integrates spatio-temporal modeling with time-frequency analysis. First, we construct a spatial modeling branch to capture inter-cell dependencies through an attention mechanism, minimizing the reliance on predefined topological structures. Second, we build a time-frequency modeling branch to enhance the representation of periodic patterns. Furthermore, we introduce an adaptive-scale LogCosh loss function, which adjusts the error penalty based on traffic magnitude, preventing large errors from dominating the training process and helping the model maintain relatively stable prediction accuracy across different traffic intensities. Experiments on three open-sourced datasets demonstrate that the proposed method achieves prediction performance superior to state-of-the-art approaches.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑