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Time series classification is of significant importance in monitoring structural systems. In this work, we investigate the use of supervised machine learning classification algorithms on simulated data based on a physical system with two…

机器学习 · 计算机科学 2024-03-14 Ergys Çokaj , Halvor Snersrud Gustad , Andrea Leone , Per Thomas Moe , Lasse Moldestad

Multivariate time series data provide a robust framework for future predictions by leveraging information across multiple dimensions, ensuring broad applicability in practical scenarios. However, their high dimensionality and mixing…

机器学习 · 计算机科学 2024-11-28 Xuanbing Zhu , Dunbin Shen , Zhongwen Rao , Huiyi Ma , Yingguang Hao , Hongyu Wang

Bots, social media accounts controlled by software rather than by humans, have recently been under the spotlight for their association with various forms of online manipulation. To date, much work has focused on social bot detection, but…

人机交互 · 计算机科学 2018-02-15 Iacopo Pozzana , Emilio Ferrara

Few-shot keyword spotting aims to detect previously unseen keywords with very limited labeled samples. A pre-training and adaptation paradigm is typically adopted for this task. While effective in clean conditions, most existing approaches…

声音 · 计算机科学 2025-11-11 Junming Yuan , Ying Shi , Dong Wang , Lantian Li , Askar Hamdulla

Deep Learning models have shown remarkable performance in a broad range of vision tasks. However, they are often vulnerable against domain shifts at test-time. Test-time training (TTT) methods have been developed in an attempt to mitigate…

计算机视觉与模式识别 · 计算机科学 2023-10-20 Gustavo A. Vargas Hakim , David Osowiechi , Mehrdad Noori , Milad Cheraghalikhani , Ismail Ben Ayed , Christian Desrosiers

Multivariate time series(MTS) is a universal data type related to many practical applications. However, MTS suffers from missing data problems, which leads to degradation or even collapse of the downstream tasks, such as prediction and…

机器学习 · 计算机科学 2022-09-19 Kai Zhang , Qinmin Yang , Chao Li

Malware abuses TLS to encrypt its malicious traffic, preventing examination by content signatures and deep packet inspection. Network detection of malicious TLS flows is an important, but challenging, problem. Prior works have proposed…

密码学与安全 · 计算机科学 2022-12-26 Gibran Gomez , Platon Kotzias , Matteo Dell'Amico , Leyla Bilge , Juan Caballero

Detection of periodic patterns of interest within noisy time series data plays a critical role in various tasks, spanning from health monitoring to behavior analysis. Existing learning techniques often rely on labels or clean versions of…

机器学习 · 计算机科学 2025-06-24 Berken Utku Demirel , Christian Holz

This paper considers the real-time detection of anomalies in high-dimensional systems. The goal is to detect anomalies quickly and accurately so that the appropriate countermeasures could be taken in time, before the system possibly gets…

机器学习 · 计算机科学 2020-07-16 Mahsa Mozaffari , Yasin Yilmaz

Background and Objectives: Multidrug Resistance (MDR) is a critical global health issue, causing increased hospital stays, healthcare costs, and mortality. This study proposes an interpretable Machine Learning (ML) framework for MDR…

With the development of generative models like GPT-3, it is increasingly more challenging to differentiate generated texts from human-written ones. There is a large number of studies that have demonstrated good results in bot…

计算与语言 · 计算机科学 2023-11-21 Vasilii Gromov , Quynh Nhu Dang

Online Social Networks have revolutionized how we consume and share information, but they have also led to a proliferation of content not always reliable and accurate. One particular type of social accounts is known to promote unreputable…

社会与信息网络 · 计算机科学 2023-04-18 Edoardo Di Paolo , Marinella Petrocchi , Angelo Spognardi

Sensor-based human activity recognition is important in daily scenarios such as smart healthcare and homes due to its non-intrusive privacy and low cost advantages, but the problem of out-of-domain generalization caused by differences in…

信号处理 · 电气工程与系统科学 2024-06-26 Jianguo Pan , Zhengxin Hu , Lingdun Zhang , Xia Cai

Time series constitute a challenging data type for machine learning algorithms, due to their highly variable lengths and sparse labeling in practice. In this paper, we tackle this challenge by proposing an unsupervised method to learn…

机器学习 · 计算机科学 2020-01-06 Jean-Yves Franceschi , Aymeric Dieuleveut , Martin Jaggi

Multi-modal biomedical time series (MBTS) data offers a holistic view of the physiological state, holding significant importance in various bio-medical applications. Owing to inherent noise and distribution gaps across different modalities,…

机器学习 · 计算机科学 2023-12-08 Hongbo Guo , Xinzi Xu , Hao Wu , Guoxing Wang

While machine translation has traditionally relied on large amounts of parallel corpora, a recent research line has managed to train both Neural Machine Translation (NMT) and Statistical Machine Translation (SMT) systems using monolingual…

计算与语言 · 计算机科学 2021-12-28 Mikel Artetxe , Gorka Labaka , Eneko Agirre

Bots are user accounts in social media which are controlled by computer programs. Similar to many other things, they are used for both good and evil purposes. One nefarious use-case for them is to spread misinformation or biased data in the…

社会与信息网络 · 计算机科学 2020-08-11 Muhammad Bazm , Masoud Asadpour

Distance-based time series anomaly detection methods are prevalent due to their relative non-parametric nature and interpretability. However, the commonly used Euclidean distance is sensitive to noise. While existing works have explored…

机器学习 · 计算机科学 2024-03-05 Hanyang Yuan , Qinglin Cai , Keting Yin

Massive key performance indicators (KPIs) are monitored as multivariate time series data (MTS) to ensure the reliability of the software applications and service system. Accurately detecting the abnormality of MTS is very critical for…

机器学习 · 计算机科学 2023-08-28 Haotian Si , Changhua Pei , Zhihan Li , Yadong Zhao , Jingjing Li , Haiming Zhang , Zulong Diao , Jianhui Li , Gaogang Xie , Dan Pei

Network or physical attacks on industrial equipment or computer systems may cause massive losses. Therefore, a quick and accurate anomaly detection (AD) based on monitoring data, especially the multivariate time-series (MTS) data, is of…

机器学习 · 计算机科学 2022-11-03 Jun Zhan , Chengkun Wu , Canqun Yang , Qiucheng Miao , Xiandong Ma