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The dynamic mode decomposition (DMD) has become a leading tool for data-driven modeling of dynamical systems, providing a regression framework for fitting linear dynamical models to time-series measurement data. We present a simple…

数值分析 · 数学 2017-04-11 Travis Askham , J. Nathan Kutz

Photon counting detectors (PCDs) offer promising advancements in computed tomography (CT) imaging by enabling the quantification and 3D imaging of contrast agents and tissue types through multi-energy projections. However, the accuracy of…

医学物理 · 物理学 2023-10-18 Juan C. R. Luna , Mini Das

We propose Comprehensive Robust Dynamic Mode Decomposition (CR-DMD), a novel framework that robustifies the entire DMD process - from mode extraction to dimensional reduction - against mixed noise. Although standard DMD widely used for…

信号处理 · 电气工程与系统科学 2026-01-19 Yuki Nakamura , Shingo Takemoto , Shunsuke Ono

A simple and low cost dynamic weight importance sampling (DWIS) implementation is presented and discussed for spatiotemporal sensing of unknown correlated signals in sensor field. The spatial signal is compressed into its contour lines and…

信号处理 · 电气工程与系统科学 2019-08-23 Hadi Alasti

Most research in synthetic speech detection (SSD) focuses on improving performance on standard noise-free datasets. However, in actual situations, noise interference is usually present, causing significant performance degradation in SSD…

声音 · 计算机科学 2024-04-17 Cunhang Fan , Mingming Ding , Jianhua Tao , Ruibo Fu , Jiangyan Yi , Zhengqi Wen , Zhao Lv

Deep neural object detection or segmentation networks are commonly trained with pristine, uncompressed data. However, in practical applications the input images are usually deteriorated by compression that is applied to efficiently transmit…

图像与视频处理 · 电气工程与系统科学 2022-05-16 Kristian Fischer , Christian Blum , Christian Herglotz , André Kaup

Layer-wise mixed-precision quantization (LMPQ) enables effective compression under extreme low-bit settings by allocating higher precision to sensitive layers. However, existing methods typically treat all intra-layer weight modules…

We present a new method for the separation of superimposed, independent, auto-correlated components from noisy multi-channel measurement. The presented method simultaneously reconstructs and separates the components, taking all channels…

统计方法学 · 统计学 2018-02-14 Jakob Knollmüller , Torsten A. Enßlin

Cross-modal alignment is a crucial task in multimodal learning aimed at achieving semantic consistency between vision and language. This requires that image-text pairs exhibit similar semantics. Traditional algorithms pursue embedding…

机器学习 · 计算机科学 2026-03-09 Xiang Ma , Lexin Fang , Litian Xu , Caiming Zhang

Compressed sensing (CS) demonstrates that sparse signals can be estimated from under-determined linear systems. Distributed CS (DCS) further reduces the number of measurements by considering joint sparsity within signal ensembles. DCS with…

信息论 · 计算机科学 2017-03-24 Junan Zhu , Dror Baron , Florent Krzakala

Sampling and quantization are standard practices in signal and image processing, but a theoretical understanding of their impact is incomplete. We consider discrete image registration when the underlying function is a one-dimensional…

计算机视觉与模式识别 · 计算机科学 2024-10-28 Serap A. Savari

Compressed Sensing (CS) is a novel technique for simultaneous signal sampling and compression based on the existence of a sparse representation of signal and a projected dictionary $PD$, where $P\in\mathbb{R}^{m\times d}$ is the projection…

信息论 · 计算机科学 2018-04-25 Canyi Lu , Huan Li , Zhouchen Lin

We tackle the challenging issue of aggressive fine-tuning encountered during the process of transfer learning of pre-trained language models (PLMs) with limited labeled downstream data. This problem primarily results in a decline in…

计算与语言 · 计算机科学 2023-12-13 Ibtihel Amara , Vinija Jain , Aman Chadha

A new method that accurately describes strongly correlated states and captures dynamical correlation is presented. It is derived as a modification of coupled-cluster theory with single and double excitations (CCSD) through consideration of…

化学物理 · 物理学 2013-07-15 Daniel Kats , Frederick R. Manby

The paper studies the problem of robust classification of digitally modulated signals using capsule networks and cyclic cumulant (CC) features extracted by cyclostationary signal processing (CSP). Two distinct datasets that contain similar…

信号处理 · 电气工程与系统科学 2023-07-06 John A. Snoap , James A. Latshaw , Dimitrie C. Popescu , Chad M. Spooner

This paper introduces Direct Simplified Symbolic Analysis (DSSA), a new method for simplifying analog circuits. Unlike traditional matrix- or graph-based techniques that are often slow and memory-intensive, DSSA treats the task as a…

其他计算机科学 · 计算机科学 2025-10-21 Mohammad Shokouhifar , Hossein Yazdanjouei , Gerhard-Wilhelm Weber

We introduce Non-Euclidean-MDS (Neuc-MDS), an extension of classical Multidimensional Scaling (MDS) that accommodates non-Euclidean and non-metric inputs. The main idea is to generalize the standard inner product to symmetric bilinear forms…

机器学习 · 计算机科学 2024-12-31 Chengyuan Deng , Jie Gao , Kevin Lu , Feng Luo , Hongbin Sun , Cheng Xin

Classical multidimensional scaling (CMDS) is a technique that embeds a set of objects in a Euclidean space given their pairwise Euclidean distances. The main part of CMDS involves double centering a squared distance matrix and using a…

谱理论 · 数学 2024-08-01 Samuel Lichtenberg , Abiy Tasissa

The boom of DL technology leads to massive DL models built and shared, which facilitates the acquisition and reuse of DL models. For a given task, we encounter multiple DL models available with the same functionality, which are considered…

软件工程 · 计算机科学 2021-03-10 Linghan Meng , Yanhui Li , Lin Chen , Zhi Wang , Di Wu , Yuming Zhou , Baowen Xu

Dynamic Vision Sensor (DVS) event camera models are important tools for predicting camera response, optimizing biases, and generating realistic simulated datasets. Existing DVS models have been useful, but have not demonstrated high realism…

图像与视频处理 · 电气工程与系统科学 2025-05-13 Rui Graca , Tobi Delbruck