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In multi-tiered fog computing systems, to accelerate the processing of computation-intensive tasks for real-time IoT applications, resource-limited IoT devices can offload part of their workloads to nearby fog nodes, whereafter such…

Networking and Internet Architecture · Computer Science 2020-12-16 Xin Gao , Xi Huang , Simeng Bian , Ziyu Shao , Yang Yang

Modern analytical workloads increasingly combine relational data with array-valued attributes. While columnar database systems efficiently process such workloads, their ability to optimize queries that interleave relational operators with…

Databases · Computer Science 2026-04-03 Maroua Zeblah , Etienne Couritas , Sarah Chlyah , Pierre Genevès , Nils Gesbert , Nabil Layaïda

Unstructured data is pervasive, but analytical queries demand structured representations, creating a significant extraction challenge. Existing methods like RAG lack schema awareness and struggle with cross-document alignment, leading to…

Databases · Computer Science 2025-11-05 Daren Chao , Kaiwen Chen , Naiqing Guan , Nick Koudas

This paper develops a persistently exciting input generating Online Feedback Optimization (OFO) controller that estimates the sensitivity of a process ensuring minimal deviations from the descent direction while converging. This eliminates…

Systems and Control · Electrical Eng. & Systems 2025-05-27 Tore Gude , Marta Anna Zagorowska , Lars Struen Imsland

Offline reinforcement learning (RL) is challenged by the distributional shift problem. To address this problem, existing works mainly focus on designing sophisticated policy constraints between the learned policy and the behavior policy.…

Machine Learning · Computer Science 2025-01-09 Yang Yue , Bingyi Kang , Xiao Ma , Qisen Yang , Gao Huang , Shiji Song , Shuicheng Yan

Nowadays, there is growing interest in applying Artificial Intelligence (AI) on board Earth Observation (EO) satellites for time-critical applications, such as natural disaster response. However, the unavailability of raw satellite data…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Gabriele Meoni , Roberto Del Prete , Federico Serva , Alix De Beussche , Olivier Colin , Nicolas Longépé

Mixed-precision computing, a widely applied technique in AI, offers a larger trade-off space between accuracy and efficiency. The recent purposed Mixed-Precision Over-the-Air Federated Learning (MP-OTA-FL) enables clients to operate at…

Machine Learning · Computer Science 2025-03-21 Jinsheng Yuan , Yun Tang , Weisi Guo

Deep learning and signal processing are closely correlated in many IoT scenarios such as anomaly detection to empower intelligence of things. Many IoT processors utilize digital signal processors (DSPs) for signal processing and build deep…

Hardware Architecture · Computer Science 2024-07-18 Fangfa Fu , Wenyu Zhang , Zesong Jiang , Zhiyu Zhu , Guoyu Li , Bing Yang , Cheng Liu , Liyi Xiao , Jinxiang Wang , Huawei Li , Xiaowei Li

In this paper, we propose a combined Online Feedback Optimization (OFO) and dynamic estimation approach for a real-time power grid operation under time-varying conditions. A dynamic estimation uses grid measurements to generate the…

Systems and Control · Electrical Eng. & Systems 2022-05-17 Miguel Picallo , Dominic Liao-McPherson , Saverio Bolognani , Florian Dörfler

Dataset distillation compresses the original data into compact synthetic datasets, reducing training time and storage while retaining model performance, enabling deployment under limited resources. Although recent decoupling-based…

Computer Vision and Pattern Recognition · Computer Science 2026-02-20 Muhammad J. Alahmadi , Peng Gao , Feiyi Wang , Dongkuan Xu

With huge amounts of data explosively increasing in the mobile edge, over-the-air federated learning (OA-FL) emerges as a promising technique to reduce communication costs and privacy leak risks. However, when devices in a relatively large…

Signal Processing · Electrical Eng. & Systems 2022-09-26 Xiangyu Zhong , Xiaojun Yuan , Huiyuan Yang , Chenxi Zhong

Data assimilation (DA) combines partial observations with dynamical models to improve state estimation. Filter-based DA uses only past and present data and is the prerequisite for real-time forecasts. Smoother-based DA exploits both past…

Systems and Control · Electrical Eng. & Systems 2026-01-21 Marios Andreou , Nan Chen , Yingda Li

Recently, Over-the-Air (OTA) computation has emerged as a promising federated learning (FL) paradigm that leverages the waveform superposition properties of the wireless channel to realize fast model updates. Prior work focused on the OTA…

Machine Learning · Computer Science 2024-04-01 Muhammad Faraz Ul Abrar , Nicolò Michelusi

The nature of modern data is increasingly real-time, making outlier detection crucial in any data-related field, such as finance for fraud detection and healthcare for monitoring patient vitals. Traditional outlier detection methods, such…

Computation · Statistics 2025-01-03 Rui Hu , Luc , Chen , Yiwei Wang

Online learning to rank (OL2R) optimizes the utility of returned search results based on implicit feedback gathered directly from users. To improve the estimates, OL2R algorithms examine one or more exploratory gradient directions and…

Information Retrieval · Computer Science 2018-11-28 Huazheng Wang , Ramsey Langley , Sonwoo Kim , Eric McCord-Snook , Hongning Wang

We address the challenging problem of efficient inference across many devices and resource constraints, especially on edge devices. Conventional approaches either manually design or use neural architecture search (NAS) to find a specialized…

Machine Learning · Computer Science 2020-05-01 Han Cai , Chuang Gan , Tianzhe Wang , Zhekai Zhang , Song Han

The use of Neural Architecture Search (NAS) techniques to automate the design of neural networks has become increasingly popular in recent years. The proliferation of devices with different hardware characteristics using such neural…

Machine Learning · Computer Science 2023-02-06 Simone Sarti , Eugenio Lomurno , Andrea Falanti , Matteo Matteucci

A comprehensive approach for real-time computations using a database of parameterized linear reduced-order models (ROMs) is proposed. The method proceeds by sampling offline ROMs for specific values of the parameters and interpolating…

Numerical Analysis · Mathematics 2015-06-24 David Amsallem , Radek Tezaur , Charbel Farhat

Online linear programming (OLP) has gained significant attention from both researchers and practitioners due to its extensive applications, such as online auction, network revenue management, order fulfillment and advertising. Existing OLP…

Data Structures and Algorithms · Computer Science 2025-11-18 Guokai Li , Zizhuo Wang , Jingwei Zhang

We propose a novel learning-based surrogate data assimilation (DA) model for efficient state estimation in a limited area. Our model employs a feedforward neural network for online computation, eliminating the need for integrating…

Numerical Analysis · Mathematics 2023-07-17 Wei Kang , Liang Xu , Hong Zhou
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