中文
相关论文

相关论文: Robust Retrospective Frequency and Phase Correctio…

200 篇论文

Many particle-based Bayesian inference methods use a single global step size for all parts of the update. In Stein variational gradient descent (SVGD), however, each update combines two qualitatively different effects: attraction toward…

机器学习 · 计算机科学 2026-04-07 Arash Sarshar

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

Time-varying inhomogeneities on stellar surfaces constitute one of the largest sources of radial velocity (RV) error for planet detection and characterization. We show that stellar variations, because they manifest on coherent, rotating…

太阳与恒星天体物理 · 物理学 2024-11-08 Lily L. Zhao , Megan E. Bedell , David W. Hogg , Rodrigo Luger

Reverberation as supervision (RAS) is a framework that allows for training monaural speech separation models from multi-channel mixtures in an unsupervised manner. In RAS, models are trained so that sources predicted from a mixture at an…

音频与语音处理 · 电气工程与系统科学 2024-08-08 Kohei Saijo , Gordon Wichern , François G. Germain , Zexu Pan , Jonathan Le Roux

Large language models frequently commit unrecoverable reasoning errors mid-generation: once a wrong step is taken, subsequent tokens compound the mistake rather than correct it. We introduce $\textbf{Latent Phase-Shift Rollback}$ (LPSR): at…

机器学习 · 计算机科学 2026-04-21 Manan Gupta , Dhruv Kumar

Coordinate descent is one of the most popular approaches for solving Lasso and its extensions due to its simplicity and efficiency. When applying coordinate descent to solving Lasso, we update one coordinate at a time while fixing the…

机器学习 · 计算机科学 2015-12-21 Jun Liu , Zheng Zhao , Ruiwen Zhang

Purpose: Develop a processing scheme for Gradient Echo (GRE) phase to enable restoration of susceptibility-related (SuR) features in regions affected by imperfect phase unwrapping, background suppression and low signal-to-noise ratio (SNR)…

医学物理 · 物理学 2021-06-30 Joseph Suresh Paul , Sreekanth Madhusoodhanan

Monocular depth estimation has seen significant advances through discriminative approaches, yet their performance remains constrained by the limitations of training datasets. While generative approaches have addressed this challenge by…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Bulat Gabdullin , Nina Konovalova , Nikolay Patakin , Dmitry Senushkin , Anton Konushin

Time series augmentation is critical for training robust deep learning models, particularly in domains where labelled data is scarce and expensive to obtain. However, existing augmentation libraries for time series, mainly written in…

机器学习 · 计算机科学 2026-01-07 Wadie Skaf , Felix Kern , Aryamaan Basu Roy , Tejas Pradhan , Roman Kalkreuth , Holger Hoos

Time series data are collected in temporal order and are widely used to train systems for prediction, modeling and classification to name a few. These systems require large amounts of data to improve generalization and prevent over-fitting.…

信号处理 · 电气工程与系统科学 2024-06-26 T. K. M. Lee , H. W. Chan , K. H. Leo , E. Chew , Ling Zhao , S. Sanei

Retrieval-Augmented Generation (RAG) enhances recency and factuality in answers. However, existing evaluations rarely test how well these systems cope with real-world noise, conflicting between internal and external retrieved contexts, or…

计算与语言 · 计算机科学 2025-10-29 Yixiao Zeng , Tianyu Cao , Danqing Wang , Xinran Zhao , Zimeng Qiu , Morteza Ziyadi , Tongshuang Wu , Lei Li

Multimodal time series (MTS) anomaly detection is crucial for maintaining the safety and stability of working devices (e.g., water treatment system and spacecraft), whose data are characterized by multivariate time series with diverse…

机器学习 · 计算机科学 2023-10-18 Chaoyue Ding , Shiliang Sun , Jing Zhao

Sufficient dimension reduction (SDR) methods, which often rely on class precision matrices, are widely used in supervised statistical classification problems. However, when class-specific sample sizes are small relative to the original…

统计方法学 · 统计学 2025-06-25 Derik T. Boonstra , Rakheon Kim , Dean M. Young

Purpose: Field monitoring measures field perturbations, which can be accounted for during image reconstructions. In certain field monitoring environments, significant phase deviations can arise far from isocenter due to the finite extent of…

医学物理 · 物理学 2023-01-25 Paul I. Dubovan , Kyle M. Gilbert , Corey A. Baron

Data assimilation performance can be significantly impacted by biased noise in observations, altering the signal magnitude and introducing fast oscillations or discontinuities when the system lacks smoothness. To mitigate these issues, this…

数值分析 · 数学 2024-11-05 Felipe Galarce , Joaquin Mura , Alfonso Caiazzo

Single-shot time resolved Coherent Anti-Stokes Raman Scattering (CARS) is presented as a viable method for fast measurements of molecular spectra. The method is based on the short spatial extension of femtosecond pulses and maps time delays…

光学 · 物理学 2009-11-13 Yuri Paskover , I. Sh. Averbukh , Yehiam Prior

Multi-object tracking (MOT) is one of the most challenging tasks in computer vision, where it is important to correctly detect objects and associate these detections across frames. Current approaches mainly focus on tracking objects in each…

计算机视觉与模式识别 · 计算机科学 2025-11-26 Matvei Shelukhan , Timur Mamedov , Karina Kvanchiani

Recent advances in zero-shot text-to-speech (TTS), driven by language models, diffusion models and masked generation, have achieved impressive naturalness in speech synthesis. Nevertheless, stability and fidelity remain key challenges,…

声音 · 计算机科学 2025-10-24 Hualei Wang , Na Li , Chuke Wang , Shu Wu , Zhifeng Li , Dong Yu

Radar Cross Section measurement data is often analyzed using Inverse Synthetic Aperture Radar images. This paper compares backprojection and iterative smooth reweighted $\ell_1$-minimization as methods to analyze radar cross section…

信号处理 · 电气工程与系统科学 2025-08-15 Christer Larsson

The RTS smoother is widely used for state estimation and it is utilized here to increase the data quality with respect to physical coherence and to increase resolution. The purpose of this paper is to enhance the performance of the RTS…

应用统计 · 统计学 2022-06-22 Lukas Höhndorf , Thomas Nagler , Phillip Koppitz , Claudia Czado , Florian Holzapfel