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The majority of high energy physics experiments rely on data acquisition and hardware-based trigger systems performing a number of stringent selections before storing data for offline analysis. The online reconstruction and selection…

Instrumentation and Detectors · Physics 2022-06-15 Matteo Migliorini , Jacopo Pazzini , Andrea Triossi , Marco Zanetti , Alberto Zucchetta

Retrieval-Augmented Generation (RAG) is a core approach for enhancing Large Language Models (LLMs), where the effectiveness of the retriever largely determines the overall response quality of RAG systems. Retrievers encompass a multitude of…

Information Retrieval · Computer Science 2025-09-30 Zou Yuheng , Wang Yiran , Tian Yuzhu , Zhu Min , Huang Yanhua

Modern data workflows are inherently adaptive, repeatedly querying the same dataset to refine and validate sequential decisions, but such adaptivity can lead to overfitting and invalid statistical inference. Adaptive Data Analysis (ADA)…

Machine Learning · Computer Science 2026-02-10 Joon Suk Huh

Real-world data sets often exhibit temporal dynamics characterized by evolving data distributions. Disregarding this phenomenon, commonly referred to as concept drift, can significantly diminish a model's predictive accuracy. Furthermore,…

Machine Learning · Computer Science 2025-12-16 Mohammad Abu Shaira , Yunhe Feng , Heng Fan , Weishi Shi

Lack of texture often causes ambiguity in matching, and handling this issue is an important challenge in optical flow estimation. Some methods insert stacked transformer modules that allow the network to use global information of cost…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Jiawei Xu , Zongqing Lu , Qingmin Liao

Domain-specific finetuning is essential for dense retrievers, yet not all training pairs contribute equally to the learning process. We introduce OPERA, a data pruning framework that exploits this heterogeneity to improve both the…

Information Retrieval · Computer Science 2026-04-02 Haoyang Fang , Shuai Zhang , Yifei Ma , Hengyi Wang , Cuixiong Hu , Katrin Kirchhoff , Bernie Wang , George Karypis

One of the challenges in online reinforcement learning (RL) is that the agent needs to trade off the exploration of the environment and the exploitation of the samples to optimize its behavior. Whether we optimize for regret, sample…

Machine Learning · Computer Science 2021-11-19 Jean Tarbouriech , Matteo Pirotta , Michal Valko , Alessandro Lazaric

This is paper introduces a new single-pass reservoir weighted-sampling stream aggregation algorithm, Priority-Based Aggregation (PBA). While order sampling is a powerful and e cient method for weighted sampling from a stream of uniquely…

Data Structures and Algorithms · Computer Science 2017-11-02 Nick Duffield , Yunhong Xu , Liangzhen Xia , Nesreen Ahmed , Minlan Yu

Active learning (AL) is a machine learning (ML) approach that strategically selects the most informative samples for annotation during training, aiming to minimize annotation costs. This strategy not only reduces labeling expenses but also…

Machine Learning · Computer Science 2026-03-25 Cédric Jung , Shirin Salehi , Anke Schmeink

In this research paper so as to handle Information warehousing as well as online synthetic dispensation OLAP are necessary aspects of conclusion support which takes more and more turn into a focal point of the data source business.This…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-12-28 Ahmed Mateen , Lareab Chaudhary

This paper investigates unmanned aerial vehicle (UAV) data collection systems with different multiple access schemes, where a rotary-wing UAV is dispatched to collect data from multiple ground nodes (GNs). Our goal is to maximize the…

Information Theory · Computer Science 2021-08-03 Xidong Mu , Yuanwei Liu , Li Guo , Jiaru Lin , Zhiguo Ding

Online and offline analytics have been traditionally treated separately in software architecture design, and there is no existing general architecture that can support both. Our objective is to go beyond and introduce a scalable and…

Software Engineering · Computer Science 2019-07-22 Sheik Hoque , Andriy Miranskyy

Optoacoustic (OA) imaging has emerged as a powerful investigation tool, with demonstrated applicability in oncology, neuroscience, and cardiovascular biology. However, its clinical translation is limited with the existing OA systems, which…

Systems and Control · Electrical Eng. & Systems 2026-01-27 Federico Villani , Christian Vogt , Luca Specht , Jero Schmid , Xiang Liu , Andrea Cossettini , Daniel Razansky , Luca Benini

Distributed tracing in microservices is critical for diagnostics but generates overwhelming data volumes, necessitating intelligent sampling. To maximize fidelity, state-of-the-art (SOTA) tail-based samplers analyze complete (or even…

Software Engineering · Computer Science 2026-04-21 Yifan Yang , Aoyang FANG , Songhan Zhang , Pinjia He

Through encouraging self-exploration, reinforcement learning from verifiable rewards (RLVR) has significantly advanced the mathematical reasoning capabilities of large language models. As the starting point for RLVR, the capacity of…

Machine Learning · Computer Science 2026-03-18 Yongyu Mu , Jiali Zeng , Fandong Meng , JingBo Zhu , Tong Xiao

This paper studies second-order methods for nonconvex-strongly-convex bilevel optimization. We propose a novel fully second-order bilevel approximation method (FSBA) that achieves an iteration complexity of…

Optimization and Control · Mathematics 2026-05-08 Sheng Yang , Chengchang Liu , Lesi Chen , John C. S. Lui

We present a new iterative rotation inversion technique based on the Simultaneous Algebraic Reconstruction Technique developed for image reconstruction. We describe in detail our algorithmic implementation and compare it to the classical…

Solar and Stellar Astrophysics · Physics 2024-06-17 Sylvain G. Korzennik , Antonio Eff-Darwich

Recent advances in deep learning rely heavily on massive datasets, leading to substantial storage and training costs. Dataset pruning aims to alleviate this demand by discarding redundant examples. However, many existing methods require…

Machine Learning · Computer Science 2025-06-13 Yeseul Cho , Baekrok Shin , Changmin Kang , Chulhee Yun

We present DeFlow, a decoupled offline RL framework that leverages flow matching to faithfully capture complex behavior manifolds. Optimizing generative policies is computationally prohibitive, typically necessitating backpropagation…

Machine Learning · Computer Science 2026-01-21 Zhancun Mu

Document images often have intricate layout structures, with numerous content regions (e.g. texts, figures, tables) densely arranged on each page. This makes the manual annotation of layout datasets expensive and inefficient. These…

Machine Learning · Computer Science 2021-03-31 Zejiang Shen , Jian Zhao , Melissa Dell , Yaoliang Yu , Weining Li
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