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We present a novel method for anomaly detection in Solar System object data, in preparation for the Legacy Survey of Space and Time. We train a deep autoencoder for anomaly detection and use the learned latent space to search for other…

地球与行星天体物理 · 物理学 2024-02-22 Brian Rogers , Chris J. Lintott , Steve Croft , Megan E. Schwamb , James R. A. Davenport

Finding effective representations for time series data is a useful but challenging task. Several works utilize self-supervised or unsupervised learning methods to address this. However, there still remains the open question of how to…

机器学习 · 计算机科学 2024-03-19 Yuansan Liu , Sudanthi Wijewickrema , Christofer Bester , Stephen O'Leary , James Bailey

For sequences of complex 3D shapes in time we present a general approach to detect patterns for their analysis and to predict the deformation by making use of structural components of the complex shape. We incorporate long short-term memory…

计算机视觉与模式识别 · 计算机科学 2020-09-09 Sara Hahner , Rodrigo Iza-Teran , Jochen Garcke

We present an approach to explain the decisions of black box models for image classification. While using the black box to label images, our explanation method exploits the latent feature space learned through an adversarial autoencoder.…

计算机视觉与模式识别 · 计算机科学 2020-02-11 Riccardo Guidotti , Anna Monreale , Stan Matwin , Dino Pedreschi

Autoencoders enable data dimensionality reduction and a key component of many (deep) learning systems. This short paper introduces a form of Holland's Learning Classifier System (LCS) to perform autoencoding building upon a previously…

神经与进化计算 · 计算机科学 2019-07-30 Larry Bull

Devising intelligent agents able to live in an environment and learn by observing the surroundings is a longstanding goal of Artificial Intelligence. From a bare Machine Learning perspective, challenges arise when the agent is prevented…

计算机视觉与模式识别 · 计算机科学 2022-04-27 Matteo Tiezzi , Simone Marullo , Lapo Faggi , Enrico Meloni , Alessandro Betti , Stefano Melacci

Learning from electronic health records (EHRs) time series is challenging due to irregular sam- pling, heterogeneous missingness, and the resulting sparsity of observations. Prior self-supervised meth- ods either impute before learning,…

机器学习 · 计算机科学 2026-02-18 Xiao Xiang , David Restrepo , Hyewon Jeong , Yugang Jia , Leo Anthony Celi

Inferring behavior model of a running software system is quite useful for several automated software engineering tasks, such as program comprehension, anomaly detection, and testing. Most existing dynamic model inference techniques are…

机器学习 · 计算机科学 2020-08-31 Mohammad Jafar Mashhadi , Hadi Hemmati

As black box models and pretrained models gain traction in time series applications, understanding and explaining their predictions becomes increasingly vital, especially in high-stakes domains where interpretability and trust are…

机器学习 · 计算机科学 2026-01-16 Khalid Oublal , Quentin Bouniot , Qi Gan , Stephan Clémençon , Zeynep Akata

Interpretable classification of time series presents significant challenges in high dimensions. Traditional feature selection methods in the frequency domain often assume sparsity in spectral density matrices (SDMs) or their inverses, which…

机器学习 · 统计学 2024-08-19 Sarbojit Roy , Malik Shahid Sultan , Hernando Ombao

Manifold learning aims to discover and represent low-dimensional structures underlying high-dimensional data while preserving critical topological and geometric properties. Existing methods often fail to capture local details with global…

机器学习 · 计算机科学 2025-05-08 Ren Wang , Pengcheng Zhou

Recent advancements in deep learning-based image compression are notable. However, prevalent schemes that employ a serial context-adaptive entropy model to enhance rate-distortion (R-D) performance are markedly slow. Furthermore, the…

应用统计 · 统计学 2024-03-25 Haisheng Fu , Feng Liang , Jie Liang , Zhenman Fang , Guohe Zhang , Jingning Han

Predicting high-dimensional dynamical systems with irregular time steps presents significant challenges for current data-driven algorithms. These irregularities arise from missing data, sparse observations, or adaptive computational…

机器学习 · 计算机科学 2026-03-27 Kewei Zhu , Yanze Xin , Jinwei Hu , Xiaoyuan Cheng , Yiming Yang , Sibo Cheng

False and nuisance alarms in industrial fault detection systems are often triggered by uncertainty, causing normal process variable fluctuations to be erroneously identified as faults. This paper introduces a novel encoder-based residual…

系统与控制 · 电气工程与系统科学 2024-08-27 Vahid MohammadZadeh Eivaghi , Mahdi Aliyari Shoorehdeli

Time series classification is crucial for numerous scientific and engineering applications. In this article, we present a numerically efficient, practically competitive, and theoretically rigorous classification method for distinguishing…

统计方法学 · 统计学 2025-07-11 Chen Qian , Xiucai Ding , Lexin Li

The slowness principle is a concept inspired by the visual cortex of the brain. It postulates that the underlying generative factors of a quickly varying sensory signal change on a slower time scale. Unsupervised learning of intermediate…

机器学习 · 计算机科学 2021-07-06 Oliver Struckmeier , Kshitij Tiwari , Ville Kyrki

Recent advances in the field of generative models and in particular generative adversarial networks (GANs) have lead to substantial progress for controlled image editing, especially compared with the pre-deep learning era. Despite their…

计算机视觉与模式识别 · 计算机科学 2023-12-14 Gwilherm Lesné , Yann Gousseau , Saïd Ladjal , Alasdair Newson

Optimization in the latent space of variational autoencoders is a promising approach to generate high-dimensional discrete objects that maximize an expensive black-box property (e.g., drug-likeness in molecular generation, function…

机器学习 · 计算机科学 2021-07-02 Pascal Notin , José Miguel Hernández-Lobato , Yarin Gal

Multivariate time-series data in numerous real-world applications (e.g., healthcare and industry) are informative but challenging due to the lack of labels and high dimensionality. Recent studies in self-supervised learning have shown their…

机器学习 · 计算机科学 2024-07-18 Ching Chang , Chiao-Tung Chan , Wei-Yao Wang , Wen-Chih Peng , Tien-Fu Chen

We present a new method to visualize data ensembles by constructing structured probabilistic representations in latent spaces, i.e., lower-dimensional representations of spatial data features. Our approach transforms the spatial features of…

机器学习 · 计算机科学 2025-09-17 Cenyang Wu , Qinhan Yu , Liang Zhou