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This study evaluates the effectiveness of a Mixture of Experts (MoE) model for stock price prediction by comparing it to a Recurrent Neural Network (RNN) and a linear regression model. The MoE framework combines an RNN for volatile stocks…

计算金融 · 定量金融 2024-10-11 Diego Vallarino

Network alignment is the task of establishing one-to-one correspondences between the nodes of different graphs. Although finding a plethora of applications in high-impact domains, this task is known to be NP-hard in its general form.…

机器学习 · 计算机科学 2024-11-20 Jiashu He , Charilaos I. Kanatsoulis , Alejandro Ribeiro

While graph neural networks (GNNs) have achieved great success in learning from graph-structured data, their reliance on local, pairwise message passing restricts their ability to capture complex, high-order subgraph patterns. leading to…

机器学习 · 计算机科学 2025-09-12 Junda Ye , Zhongbao Zhang , Li Sun , Siqiang Luo

Modeling power transmission networks is an important area of research with applications such as vulnerability analysis, study of cascading failures, and location of measurement devices. Graph-theoretic approaches have been widely used to…

Recent progress in deep learning has been driven by increasingly large-scale models, but the resulting computational cost has become a critical bottleneck. Sparse Mixture of Experts (MoE) offers an effective solution by activating only a…

计算机视觉与模式识别 · 计算机科学 2026-04-24 Masahiro Kada , Ryota Yoshihashi , Satoshi Ikehata , Rei Kawakami , Ikuro Sato

The successful integration of machine learning models into decision support tools for grid operation hinges on effectively capturing the topological changes in daily operations. Frequent grid reconfigurations and N-k security analyses have…

系统与控制 · 电气工程与系统科学 2025-03-05 Agnes M. Nakiganda , Spyros Chatzivasileiadis

This paper introduces a novel approach to the power system security assessment using Multi-Task Learning (MTL), and reformulating the problem as a multi-label classification task. The proposed MTL framework simultaneously assesses static,…

系统与控制 · 电气工程与系统科学 2025-05-12 Muhy Eddin Za'ter , Amir Sajad , Bri-Mathias Hodge

The sparse Mixture-of-Experts (MoE) architecture of large language models (LLMs) confronts an inherent issue of load imbalance arising from the simplistic linear router strategy, which ultimately causes the instability and inefficient…

机器学习 · 计算机科学 2025-11-25 Ting Bai , Yue Yu , Le Huang , Zenan Xu , Chuan Shi

Integrated Sensing and Communications (ISAC) is one of the core technologies of 6G, which combines sensing and communication functions into a single system. However, limited computing and storage resources make it impractical to combine…

信号处理 · 电气工程与系统科学 2024-06-04 Jiacheng Wang , Hongyang Du , Geng Sun , Jiawen Kang , Haibo Zhou , Dusit Niyato , Jiming Chen

The goal of the state estimation (SE) algorithm is to estimate complex bus voltages as state variables based on the available set of measurements in the power system. Because phasor measurement units (PMUs) are increasingly being used in…

机器学习 · 计算机科学 2023-02-02 Ognjen Kundacina , Mirsad Cosovic , Dejan Vukobratovic

Accurate and scalable surrogate models for AC power flow are essential for real-time grid monitoring, contingency analysis, and decision support in increasingly dynamic and inverter-dominated power systems. However, most existing surrogates…

系统与控制 · 电气工程与系统科学 2025-07-04 Shrenik Jadhav , Birva Sevak , Srijita Das , Wencong Su , Van-Hai Bui

Financial institutions increasingly require scalable tools to analyse complex transactional networks, yet traditional graph embedding methods struggle with dynamic, real-world banking data. This paper demonstrates the practical application…

机器学习 · 计算机科学 2025-09-17 Mihir Tare , Clemens Rattasits , Yiming Wu , Euan Wielewski

Investigating the network stability or synchronization dynamics of multi-agent systems with time delays is of significant importance in numerous real-world applications. Such investigations often rely on solving the transcendental…

动力系统 · 数学 2025-01-08 Shijie Zhou , Yang Luan , Xuzhe Qian , Wei Lin

Learning complex multi-agent system dynamics from data is crucial across many domains, such as in physical simulations and material modeling. Extended from purely data-driven approaches, existing physics-informed approaches such as…

机器学习 · 计算机科学 2023-10-11 Zijie Huang , Wanjia Zhao , Jingdong Gao , Ziniu Hu , Xiao Luo , Yadi Cao , Yuanzhou Chen , Yizhou Sun , Wei Wang

We propose a mathematical framework for designing robust networks of coupled phase-oscillators by leveraging a vulnerability measure proposed by Tyloo et. al that quantifies how much a small perturbation to a phase-oscillator's natural…

最优化与控制 · 数学 2023-08-14 Shriya V. Nagpal , Gokul G. Nair , Francesca Parise , C. Lindsay Anderson

The advancement of generative artificial intelligence (GAI) has driven revolutionary applications like ChatGPT. The widespread of these applications relies on the mixture of experts (MoE), which contains multiple experts and selectively…

网络与互联网体系结构 · 计算机科学 2024-02-13 Jiacheng Wang , Hongyang Du , Dusit Niyato , Jiawen Kang , Zehui Xiong , Dong In Kim , Khaled B. Letaief

Existing dynamics prediction frameworks for transient stability analysis (TSA) fail to achieve multi-scenario "universality": the inherent ability of a single, pre-trained architecture to generalize across diverse operating conditions,…

系统与控制 · 电气工程与系统科学 2026-05-22 Chao Shen , Ke Zuo , Mingyang Sun

When multiple outages occur in rapid succession, it is important to know quickly if the power transfer capability of different interconnections (or cut-sets) of the power network are limited. The algorithm developed in this paper identifies…

系统与控制 · 电气工程与系统科学 2020-08-10 Reetam Sen Biswas , Anamitra Pal , Trevor Werho , Vijay Vittal

Multimodal-attributed graphs (MAGs) are a fundamental data structure for multimodal graph learning (MGL), enabling both graph-centric and modality-centric tasks. However, our empirical analysis reveals inherent topology quality limitations…

机器学习 · 计算机科学 2026-03-31 Yinlin Zhu , Xunkai Li , Di Wu , Wang Luo , Miao Hu , Di Wu

To mitigate climate change, the share of renewable energies in power production needs to be increased. Renewables introduce new challenges to power grids regarding the dynamic stability due to decentralization, reduced inertia, and…

机器学习 · 计算机科学 2026-05-06 Christian Nauck , Michael Lindner , Konstantin Schürholt , Frank Hellmann