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The synthetic control (SC) framework is widely used for observational causal inference with time-series panel data. SC has been successful in diverse applications, but existing methods typically treat the ordering of pre-intervention time…

机器学习 · 计算机科学 2026-01-07 Saeyoung Rho , Cyrus Illick , Samhitha Narasipura , Alberto Abadie , Daniel Hsu , Vishal Misra

Time-series anomaly detection (TSAD) is a critical component in monitoring complex systems, yet modern deep learning-based detectors are often highly sensitive to localized input corruptions and structured noise. We propose ARTA…

机器学习 · 计算机科学 2026-05-07 Hadi Hojjati , Narges Armanfard

We propose a post-hoc adaptive conformal anomaly detection method for monitoring time series that leverages predictions from pre-trained foundation models without requiring additional fine-tuning. Our method yields an interpretable anomaly…

Recent advancements in time-series anomaly detection have relied on deep learning models to handle the diverse behaviors of time-series data. However, these models often suffer from unstable training and require extensive hyperparameter…

机器学习 · 计算机科学 2024-08-28 Nobuo Namura , Yuma Ichikawa

Semi-supervised video anomaly detection methods face two critical challenges: (1) Strong generalization blurs the boundary between normal and abnormal patterns. Although existing approaches attempt to alleviate this issue using memory…

计算机视觉与模式识别 · 计算机科学 2026-03-20 Juntong Li , Lingwei Dang , Qingxin Xiao , Shishuo Shang , Jiajia Cheng , Haomin Wu , Yun Hao , Qingyao Wu

The STIS team monitors the time dependent sensitivity (TDS) of each grating with one from a set of three secondary CALSPEC standard stars: GRW+70D5824, AGK+81D266, and BD+28D4211. Here, we use the three primary CALSPEC White Dwarf standard…

天体物理仪器与方法 · 物理学 2026-04-27 Daniel Stapleton , Svea Hernandez

State-space models (SSMs) are a popular tool for modeling animal abundances. Inference difficulties for simple linear SSMs are well known, particularly in relation to simultaneous estimation of process and observation variances. Several…

种群与进化 · 定量生物学 2019-09-20 Leo Polansky , Ken B. Newman , Lara Mitchell

Model selection has been raised as an essential problem in the area of time series anomaly detection (TSAD), because there is no single best TSAD model for the highly heterogeneous time series in real-world applications. However, despite…

机器学习 · 计算机科学 2025-03-21 Zhiyu Liang , Dongrui Cai , Chenyuan Zhang , Zheng Liang , Chen Liang , Bo Zheng , Shi Qiu , Jin Wang , Hongzhi Wang

Real-world ecommerce recommender systems must deliver relevant items under strict tens-of-milliseconds latency constraints despite challenges such as cold-start products, rapidly shifting user intent, and dynamic context including…

信息检索 · 计算机科学 2025-12-16 Han Chen , Steven Zhu , Yingrui Li

Organizations rely heavily on time series metrics to measure and model key aspects of operational and business performance. The ability to reliably detect issues with these metrics is imperative to identifying early indicators of major…

机器学习 · 计算机科学 2020-11-11 Sayan Chakraborty , Smit Shah , Kiumars Soltani , Anna Swigart , Luyao Yang , Kyle Buckingham

While Large Reasoning Models (LRMs) have achieved remarkable performance by scaling test-time compute, they frequently suffer from Cognitive Inertia, a failure pattern manifesting as either overthinking (inertia of motion) or reasoning…

机器学习 · 计算机科学 2026-02-02 Seojin Lee , ByeongJeong Kim , Hwanhee Lee

In recent years, test-time adaptive object detection has attracted increasing attention due to its unique advantages in online domain adaptation, which aligns more closely with real-world application scenarios. However, existing approaches…

计算机视觉与模式识别 · 计算机科学 2025-10-30 Yingjie Gao , Yanan Zhang , Zhi Cai , Di Huang

Change detection (CD) in remote sensing aims to identify semantic differences between satellite images captured at different times. While deep learning has significantly advanced this field, existing approaches based on convolutional neural…

计算机视觉与模式识别 · 计算机科学 2026-03-03 Durgesh Ameta , Ujjwal Mishra , Praful Hambarde , Amit Shukla

This work presents a novel adaptive framework for simultaneously estimating spacecraft attitude and sensor misalignment. Uncorrected star tracker misalignment can introduce significant pointing errors that compromise mission objectives in…

系统与控制 · 电气工程与系统科学 2025-07-29 Ridma Ganganath , Simone Servadio , David Lee

Understanding the internal representations of large language models is crucial for ensuring their reliability and safety, with sparse autoencoders (SAEs) emerging as a promising interpretability approach. However, current SAE training…

机器学习 · 计算机科学 2025-10-13 T. Ed Li , Junyu Ren

Recent breakthroughs in singing voice synthesis (SVS) have heightened the demand for high-quality annotated datasets, yet manual annotation remains prohibitively labor-intensive and resource-intensive. Existing automatic singing annotation…

声音 · 计算机科学 2025-07-10 Wenxiang Guo , Yu Zhang , Changhao Pan , Zhiyuan Zhu , Ruiqi Li , Zhetao Chen , Wenhao Xu , Fei Wu , Zhou Zhao

Time series foundation models (TSFMs) demonstrate impressive zero-shot performance for time series forecasting. However, an important yet underexplored challenge is how to effectively finetune TSFMs on specific downstream tasks. While naive…

Nowadays, multivariate time series data are increasingly collected in various real world systems, e.g., power plants, wearable devices, etc. Anomaly detection and diagnosis in multivariate time series refer to identifying abnormal status in…

Anomaly detection in complex industrial environments poses unique challenges, particularly in contexts characterized by data sparsity and evolving operational conditions. Predictive maintenance (PdM) in such settings demands methodologies…

For additive actuator and sensor faults, we propose a systematic method to design a state-space fault estimation filter directly from Markov parameters identified from fault-free data. We address this problem by parameterizing a…

系统与控制 · 计算机科学 2017-08-31 Yiming Wan , Tamas Keviczky , Michel Verhaegen
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