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For any stream of time-stamped edges that form a dynamic network, an important choice is the aggregation granularity that an analyst uses to bin the data. Picking such a windowing of the data is often done by hand, or left up to the…

社会与信息网络 · 计算机科学 2017-02-28 Benjamin Fish , Rajmonda S. Caceres

The analysis of temporal networks heavily depends on the analysis of time-respecting paths. However, before being able to model and analyze the time-respecting paths, we have to infer the timescales at which the temporal edges influence…

物理与社会 · 物理学 2023-01-30 Luka V. Petrović , Anatol Wegner , Ingo Scholtes

Graph classification aims to categorize graphs based on their structural and attribute features, with applications in diverse fields such as social network analysis and bioinformatics. Among the methods proposed to solve this task, those…

机器学习 · 计算机科学 2025-07-23 Lucas Potin , Rosa Figueiredo , Vincent Labatut , Christine Largeron

Handling missing data in time series classification remains a significant challenge in various domains. Traditional methods often rely on imputation, which may introduce bias or fail to capture the underlying temporal dynamics. In this…

机器学习 · 计算机科学 2026-04-03 YongKyung Oh , Dong-Young Lim , Sungil Kim , Alex Bui

In the domain of time series analysis, particularly in event detection tasks, current methodologies predominantly rely on segmentation-based approaches, which predict the class label for each individual timesteps and use the changepoints of…

人工智能 · 计算机科学 2024-08-26 Clark Peng , Tolga Dinçer

Unlabelled data appear in many domains and are particularly relevant to streaming applications, where even though data is abundant, labelled data is rare. To address the learning problems associated with such data, one can ignore the…

机器学习 · 计算机科学 2021-06-18 Heitor Murilo Gomes , Maciej Grzenda , Rodrigo Mello , Jesse Read , Minh Huong Le Nguyen , Albert Bifet

Recently, detection of label errors and improvement of label quality in datasets for supervised learning tasks has become an increasingly important goal in both research and industry. The consequences of incorrectly annotated data include…

机器学习 · 计算机科学 2025-08-26 Sarina Penquitt , Tobias Riedlinger , Timo Heller , Markus Reischl , Matthias Rottmann

Pixelwise semantic image labeling is an important, yet challenging, task with many applications. Typical approaches to tackle this problem involve either the training of deep networks on vast amounts of images to directly infer the labels…

计算机视觉与模式识别 · 计算机科学 2017-12-12 Yu-Hui Huang , Xu Jia , Stamatios Georgoulis , Tinne Tuytelaars , Luc Van Gool

Deep learning methodologies have been employed in several different fields, with an outstanding success in image recognition applications, such as material quality control, medical imaging, autonomous driving, etc. Deep learning models rely…

计算机视觉与模式识别 · 计算机科学 2022-03-11 Saul Calderon-Ramirez , Shengxiang Yang , David Elizondo

The rapid advancement of models based on artificial intelligence demands innovative monitoring techniques which can operate in real time with low computational costs. In machine learning, especially if we consider artificial neural networks…

统计方法学 · 统计学 2023-11-10 Anna Malinovskaya , Pavlo Mozharovskyi , Philipp Otto

Label noise may affect the generalization of classifiers, and the effective learning of main patterns from samples with noisy labels is an important challenge. Recent studies have shown that deep neural networks tend to prioritize the…

机器学习 · 计算机科学 2019-12-06 Yi Sun , Yan Tian , Yiping Xu , Jianxiang Li

Labeling data (e.g., labeling the people, objects, actions and scene in images) comprehensively and efficiently is a widely needed but challenging task. Numerous models were proposed to label various data and many approaches were designed…

机器学习 · 计算机科学 2020-02-14 Mu Yuan , Lan Zhang , Xiang-Yang Li , Hui Xiong

Time-stamped data are increasingly available for many social, economic, and information systems that can be represented as networks growing with time. The World Wide Web, social contact networks, and citation networks of scientific papers…

物理与社会 · 物理学 2019-10-01 Matus Medo , An Zeng , Yi-Cheng Zhang , Manuel S. Mariani

Stream mining poses unique challenges to machine learning: predictive models are required to be scalable, incrementally trainable, must remain bounded in size (even when the data stream is arbitrarily long), and be nonparametric in order to…

机器学习 · 统计学 2015-08-21 Rocco De Rosa , Francesco Orabona , Nicolò Cesa-Bianchi

The quickest change detection problem is considered in the context of monitoring large-scale independent normal distributed data streams with possible changes in some of the means. It is assumed that for each individual local data stream,…

统计理论 · 数学 2016-03-18 Yuan Wang , Yajun Mei

In this paper, we investigate the multi-variate sequence classification problem from a multi-instance learning perspective. Real-world sequential data commonly show discriminative patterns only at specific time periods. For instance, we can…

机器学习 · 计算机科学 2017-12-21 Xiaowei Jia , Ankush Khandelwal , Anuj Karpatne , Vipin Kumar

Exact structured inference with neural network scoring functions is computationally challenging but several methods have been proposed for approximating inference. One approach is to perform gradient descent with respect to the output…

计算与语言 · 计算机科学 2019-07-09 Lifu Tu , Kevin Gimpel

In this paper we propose a new method to assist in labeling data arriving from fast running processes using anomaly detection. A result is the possibility to manually classify data arriving at a high rates to train machine learning models.…

机器学习 · 计算机科学 2024-09-23 Tilman Klaeger , Andre Schult , Lukas Oehm

With this paper, we survey techniques for improving the predictive accuracy of pretrained large language models by allocating additional compute at inference time. In categorizing test-time scaling methods, we place special emphasis on how…

计算与语言 · 计算机科学 2025-11-20 Zhuoyi Yang , Xu Guo , Tong Zhang , Huijuan Xu , Boyang Li

This paper considers the detection of change points in parallel data streams, a problem widely encountered when analyzing large-scale real-time streaming data. Each stream may have its own change point, at which its data has a…

统计方法学 · 统计学 2023-01-18 Zexian Lu , Yunxiao Chen , Xiaoou Li