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Weighted Logic is a powerful tool for the specification of calculations over semirings that depend on qualitative information. Using a novel combination of Weighted Logic and Here-and-There (HT) Logic, in which this dependence is based on…

人工智能 · 计算机科学 2022-11-14 Thomas Eiter , Rafael Kiesel

Neural models of code have shown impressive results when performing tasks such as predicting method names and identifying certain kinds of bugs. We show that these models are vulnerable to adversarial examples, and introduce a novel…

机器学习 · 计算机科学 2020-10-14 Noam Yefet , Uri Alon , Eran Yahav

Detecting adversarial examples currently stands as one of the biggest challenges in the field of deep learning. Adversarial attacks, which produce adversarial examples, increase the prediction likelihood of a target class for a particular…

机器学习 · 计算机科学 2019-07-31 Utku Ozbulak , Arnout Van Messem , Wesley De Neve

Adversarial attacks against Large Vision-Language Models (LVLMs) are crucial for exposing safety vulnerabilities in modern multimodal systems. Recent attacks based on input transformations, such as random cropping, suggest that spatially…

计算机视觉与模式识别 · 计算机科学 2026-02-05 Jaehyun Kwak , Nam Cao , Boryeong Cho , Segyu Lee , Sumyeong Ahn , Se-Young Yun

Time series motif discovery has been a fundamental task to identify meaningful repeated patterns in time series. Recently, time series chains were introduced as an expansion of time series motifs to identify the continuous evolving patterns…

机器学习 · 计算机科学 2022-11-07 Li Zhang , Yan Zhu , Yifeng Gao , Jessica Lin

Classification models for the multivariate time series have gained significant importance in the research community, but not much research has been done on generating adversarial samples for these models. Such samples of adversaries could…

机器学习 · 计算机科学 2020-04-02 Samuel Harford , Fazle Karim , Houshang Darabi

This paper introduces the Time Synchronization Attack Rejection and Mitigation (TSARM) technique for Time Synchronization Attacks (TSAs) over the Global Positioning System (GPS). The technique estimates the clock bias and drift of the GPS…

系统与控制 · 计算机科学 2018-02-07 Ali Khalajmehrabadi , Nikolaos Gatsis , David Akopian , Ahmad F. Taha

Autonomous agents deployed in the real world need to be robust against adversarial attacks on sensory inputs. Robustifying agent policies requires anticipating the strongest attacks possible. We demonstrate that existing observation-space…

Learning models capable of providing reliable predictions in the face of adversarial actions has become a central focus of the machine learning community in recent years. This challenge arises from observing that data encountered at…

机器学习 · 计算机科学 2025-05-05 Marco C. Campi , Algo Carè , Luis G. Crespo , Simone Garatti , Federico A. Ramponi

In recent years, neural networks have become the default choice for image classification and many other learning tasks, even though they are vulnerable to so-called adversarial attacks. To increase their robustness against these attacks,…

机器学习 · 计算机科学 2020-02-10 Hasan Ferit Eniser , Maria Christakis , Valentin Wüstholz

An adversarial attack paradigm explores various scenarios for the vulnerability of deep learning models: minor changes of the input can force a model failure. Most of the state of the art frameworks focus on adversarial attacks for images…

机器学习 · 计算机科学 2020-06-22 I. Fursov , A. Zaytsev , N. Kluchnikov , A. Kravchenko , E. Burnaev

Adversarial perturbations have drawn great attentions in various deep neural networks. Most of them are computed by iterations and cannot be interpreted very well. In contrast, little attentions are paid to basic machine learning models…

机器学习 · 计算机科学 2022-04-08 Wen Su , Qingna Li , Chunfeng Cui

Time series mining is an important branch of data mining, as time series data is ubiquitous and has many applications in several domains. The main task in time series mining is classification. Time series representation methods play an…

机器学习 · 计算机科学 2021-12-28 Muhammad Marwan Muhammad Fuad

Deep Reinforcement Learning (RL) agents are susceptible to adversarial noise in their observations that can mislead their policies and decrease their performance. However, an adversary may be interested not only in decreasing the reward,…

机器学习 · 计算机科学 2022-12-13 Dennis Gross , Thiago D. Simao , Nils Jansen , Guillermo A. Perez

Time Series Classification (TSC) has received much attention in the past two decades and is still a crucial and challenging problem in data science and knowledge engineering. Indeed, along with the increasing availability of time series…

机器学习 · 计算机科学 2023-08-14 Aurélien Renault , Alexis Bondu , Vincent Lemaire , Dominique Gay

Adversarial attacks pose a severe security threat to the state-of-the-art speaker identification systems, thereby making it vital to propose countermeasures against them. Building on our previous work that used representation learning to…

音频与语音处理 · 电气工程与系统科学 2022-04-11 Sonal Joshi , Saurabh Kataria , Jesus Villalba , Najim Dehak

Recent studies have highlighted adversarial examples as a ubiquitous threat to different neural network models and many downstream applications. Nonetheless, as unique data properties have inspired distinct and powerful learning principles,…

机器学习 · 计算机科学 2019-06-06 Zhuolin Yang , Bo Li , Pin-Yu Chen , Dawn Song

A human's attention can intuitively adapt to corrupted areas of an image by recalling a similar uncorrupted image they have previously seen. This observation motivates us to improve the attention of adversarial images by considering their…

计算机视觉与模式识别 · 计算机科学 2022-01-05 Runqi Wang , Xiaoyue Duan , Baochang Zhang , Song Xue , Wentao Zhu , David Doermann , Guodong Guo

This paper studies Time Series Extrinsic Regression (TSER): a regression task of which the aim is to learn the relationship between a time series and a continuous scalar variable; a task closely related to time series classification (TSC),…

机器学习 · 计算机科学 2021-02-04 Chang Wei Tan , Christoph Bergmeir , Francois Petitjean , Geoffrey I. Webb

Adversarial attacking aims to fool deep neural networks with adversarial examples. In the field of natural language processing, various textual adversarial attack models have been proposed, varying in the accessibility to the victim model.…

计算与语言 · 计算机科学 2020-09-22 Yuan Zang , Bairu Hou , Fanchao Qi , Zhiyuan Liu , Xiaojun Meng , Maosong Sun