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We present a self-interaction-corrected (SIC) density-functional-theory (DFT) approach for the description of systems with an unpaired electron or hole such as spin 1/2 defect-centers in solids or radicals. Our functional is…

材料科学 · 物理学 2009-11-10 Mayeul d'Avezac , Matteo Calandra , Francesco Mauri

In this article, we develop comprehensive frequency domain methods for estimating and inferring the second-order structure of spatial point processes. The main element here is on utilizing the discrete Fourier transform (DFT) of the point…

统计方法学 · 统计学 2025-01-24 Junho Yang , Yongtao Guan

Multi-rater medical image segmentation captures the inherent ambiguity of clinical interpretation, where diagnostic boundaries vary across experts and imaging devices. Existing approaches often reduce this diversity to consensus labels or…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Sanaz Karimijafarbigloo , Armin Khosravi , Alireza Kheyrkhah , Reza Azad , Mauricio Reyes , Dorit Merhof

Spoofing-robust speaker verification (SASV) combines the tasks of speaker and spoof detection to authenticate speakers under adversarial settings. Many SASV systems rely on fusion of speaker and spoof cues at embedding, score or decision…

音频与语音处理 · 电气工程与系统科学 2026-03-31 Oğuzhan Kurnaz , Jagabandhu Mishra , Tomi H. Kinnunen , Cemal Hanilçi

Most speech enhancement algorithms make use of the short-time Fourier transform (STFT), which is a simple and flexible time-frequency decomposition that estimates the short-time spectrum of a signal. However, the duration of short STFT…

声音 · 计算机科学 2015-09-03 Scott Wisdom , Thomas Powers , Les Atlas , James Pitton

A robust observer for performing power system dynamic state estimation (DSE) of a synchronous generator is proposed. The observer is developed using the concept of $\mathcal{L}_{\infty}$ stability for uncertain, nonlinear dynamic generator…

系统与控制 · 电气工程与系统科学 2020-02-19 Sebastian Nugroho , Ahmad F. Taha , Junjian Qi

In a previous contribution (Mol. Phys. {\bf 103}, xxxx, 2005), we established the suitability of density functional theory (DFT) for the calculation of molecular anharmonic force fields. In the present work, we have assessed a wide variety…

化学物理 · 物理学 2007-05-23 A. Daniel Boese , Wim Klopper , Jan M. L. Martin

First-principles simulations of electronic properties of hybrid inorganic/organic interfaces are challenging, as common density-functional theory (DFT) approximations target specific material classes like bulk semiconductors or gas-phase…

材料科学 · 物理学 2023-02-13 Jannis Krumland , Caterina Cocchi

Single-channel speech enhancement (SE) is an important task in speech processing. A widely used framework combines an analysis/synthesis filterbank with a mask prediction network, such as the Conv-TasNet architecture. In such systems, the…

音频与语音处理 · 电气工程与系统科学 2021-08-06 Yuma Koizumi , Shigeki Karita , Scott Wisdom , Hakan Erdogan , John R. Hershey , Llion Jones , Michiel Bacchiani

The FFT algorithm that implements the discrete Fourier transform is considered one of the top ten algorithms of the $20$th century. Its main strengths are the low computational cost of $\mathcal{O}(n \log n$) and its stability. It is one of…

数值分析 · 数学 2017-06-15 Matteo Briani , Annie Cuyt , Wen-shin Lee

We discuss several strategies to implement Dykstra's projection algorithm on NVIDIA's compute unified device architecture (CUDA). Dykstra's algorithm is the central step in and the computationally most expensive part of statistical…

计算物理 · 物理学 2015-03-13 Jan Lebert , Lutz Künneke , Johannes Hagemann , Stephan C. Kramer

We propose a single-channel Deep Cascade Fusion of Diarization and Separation (DCF-DS) framework for back-end automatic speech recognition (ASR), combining neural speaker diarization (NSD) and speech separation (SS). First, we sequentially…

音频与语音处理 · 电气工程与系统科学 2024-12-31 Shu-Tong Niu , Jun Du , Ruo-Yu Wang , Gao-Bin Yang , Tian Gao , Jia Pan , Yu Hu

The multi-dithering method has been well verified in phase locking of polarization coherent combination experiment. However, it is hard to apply to low repetition frequency pulsed lasers, since there exists an overlap frequency domain…

信号处理 · 电气工程与系统科学 2022-03-10 Jiali Zhang , Jie Cao , Qun Hao , Yang Cheng , Liquan Dong , Bin Han , Xuesheng Liu

Multimodal fusion faces two robustness challenges: noisy inputs degrade representation quality, and missing modalities cause prediction failures. We propose DCER, a unified framework addressing both challenges through dual-stage compression…

机器学习 · 计算机科学 2026-02-06 Yiwen Wang , Jiahao Qin

Existing sub-/super-synchronous (SSO) suppression methods for the direct-drive permanent magnet synchronous generators (D-PMSG) integrated power systems are mainly achieved by external devices or sub-synchronous resonance damping controller…

系统与控制 · 电气工程与系统科学 2026-04-03 Songhao Yang , Ruixin Shen , Jin Shu , Tao Zhang , Yujun Li , Baohui Zhang , Zhiguo Hao

Stacked Intelligent Metasurfaces (SIM) have emerged as a revolutionary architecture for next-generation wireless communications, offering wave-domain signal processing capabilities with significantly reduced hardware complexity compared to…

信息论 · 计算机科学 2026-01-22 Yuhui Jiao , Qian Zhang , Xuejun Cheng , Yunxiao Li , Yufei Zhao , Ju Liu , Yong Liang Guan

Accurate Channel State Information (CSI) prediction is essential for dynamic multiple-input multiple-output (MIMO) systems but remains computationally demanding. This letter proposes a resource-efficient predictor that combines a gated…

信号处理 · 电气工程与系统科学 2026-05-08 Mohammad Hussain , Maedeh Adibag , Dilara Gurer , Gokhan Kalem , Kerim Serin , Sinem Coleri

Computing Fourier transforms of k-sparse signals, where only k of N frequencies are non-zero, is fundamental in compressed sensing, radar, and medical imaging. While the Fast Fourier Transform (FFT) evaluates all N frequencies in $O(N \log…

信号处理 · 电气工程与系统科学 2026-04-22 Aaron R. Flouro , Shawn P. Chadwick

Recently, more and more personalized speech enhancement systems (PSE) with excellent performance have been proposed. However, two critical issues still limit the performance and generalization ability of the model: 1) Acoustic environment…

音频与语音处理 · 电气工程与系统科学 2022-11-23 Xiaofeng Ge , Jiangyu Han , Haixin Guan , Yanhua Long

The state-of-the-art automotive radars employ multidimensional discrete Fourier transforms (DFT) in order to estimate various target parameters. The DFT is implemented using the fast Fourier transform (FFT), at sample and computational…

信号处理 · 电气工程与系统科学 2018-01-16 Shaogang Wang , Vishal M. Patel , Athina Petropulu