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Parallel-across-the method time integration can provide small scale parallelism when solving initial value problems. Spectral deferred corrections (SDC) with a diagonal sweeper, which is closely related to iterated Runge-Kutta methods…

数值分析 · 数学 2025-02-12 Gayatri Čaklović , Thibaut Lunet , Sebastian Götschel , Daniel Ruprecht

In practical compressed sensing (CS), the obtained measurements typically necessitate quantization to a limited number of bits prior to transmission or storage. This nonlinear quantization process poses significant recovery challenges,…

信号处理 · 电气工程与系统科学 2024-01-09 Xiangming Meng , Yoshiyuki Kabashima

Time series forecasting is foundational in scientific and technological domains, from climate modelling to molecular dynamics. Classical approaches have significantly advanced sequential prediction, including autoregressive models and deep…

量子物理 · 物理学 2025-06-03 Mostafizur Rahaman Laskar , Richa Goel

Stream monitoring is fundamental in many data stream applications, such as financial data trackers, security, anomaly detection, and load balancing. In that respect, quantiles are of particular interest, as they often capture the user's…

数据结构与算法 · 计算机科学 2022-01-07 Rana Shahout , Roy Friedman , Ran Ben Basat

Action Quality Assessment(AQA) is important for action understanding and resolving the task poses unique challenges due to subtle visual differences. Existing state-of-the-art methods typically rely on the holistic video representations for…

计算机视觉与模式识别 · 计算机科学 2022-07-20 Yang Bai , Desen Zhou , Songyang Zhang , Jian Wang , Errui Ding , Yu Guan , Yang Long , Jingdong Wang

Multiscale phenomena that evolve on multiple distinct timescales are prevalent throughout the sciences. It is often the case that the governing equations of the persistent and approximately periodic fast scales are prescribed, while the…

混沌动力学 · 物理学 2020-08-19 Jason J. Bramburger , Daniel Dylewsky , J. Nathan Kutz

We propose a simple and efficient time-series clustering framework particularly suited for low Signal-to-Noise Ratio (SNR), by simultaneous smoothing and dimensionality reduction aimed at preserving clustering information. We extend the…

机器学习 · 计算机科学 2015-10-20 Tom Hope , Avishai Wagner , Or Zuk

While anomaly detection in time series has been an active area of research for several years, most recent approaches employ an inadequate evaluation criterion leading to an inflated F1 score. We show that a rudimentary Random Guess method…

机器学习 · 计算机科学 2022-03-11 Keval Doshi , Shatha Abudalou , Yasin Yilmaz

The power consumption of high-speed, high-resolution analog to digital converters (ADCs) is a limiting factor in implementing large-bandwidth mm-wave communication systems. A mitigating solution, which has drawn considerable recent…

信号处理 · 电气工程与系统科学 2022-08-10 Farhad Shirani , Hamidreza Aghasi

Periodic nonuniform sampling is a known method to sample spectrally sparse signals below the Nyquist rate. This strategy relies on the implicit assumption that the individual samplers are exposed to the entire frequency range. This…

信息论 · 计算机科学 2009-01-27 Moshe Mishali , Yonina C. Eldar , Joel A. Tropp

To establish a time reference frame between two users in quantum key distribution, a synchronization calibration process is usually applied for the case of using gated mode single-photon detectors (SPDs). Traditionally, the synchronization…

量子物理 · 物理学 2020-02-26 Peng Liu , Hua-Lei Yin

In this paper, we propose a novel semantic digital analog converter (sDAC) for the compatibility of semantic communications and digital communications. Most of the current semantic communication systems are based on the analog modulations,…

信息论 · 计算机科学 2024-05-07 Zhicheng Bao , Chen Dong , Xiaodong Xu

With the rapid increase in the size of neural networks, model compression has become an important area of research. Quantization is an effective technique at decreasing the model size, memory access, and compute load of large models.…

音频与语音处理 · 电气工程与系统科学 2023-05-26 David Qiu , David Rim , Shaojin Ding , Oleg Rybakov , Yanzhang He

The quantum cryptographic conferencing (QCC) protocol, which distributes identical secure keys to user groups, is a crucial component of the quantum network. Previous experimental works have implemented the measurement-device-independent…

量子物理 · 物理学 2026-02-25 Yifeng Du , Yang Hu , Yufeng Liu , Wenhan Yan , Jinghao Zhang , Shining Zhu , Xiao-Song Ma

Sub-sequence splitting (SSS) has been demonstrated as an effective approach to mitigate data sparsity in sequential recommendation (SR) by splitting a raw user interaction sequence into multiple sub-sequences. Previous studies have…

信息检索 · 计算机科学 2026-04-08 Yizhou Dang , Yifan Wu , Minhan Huang , Chuang Zhao , Lianbo Ma , Guibing Guo , Xingwei Wang , Zhu Sun

Variational quantum algorithms (VQAs) offer the most promising path to obtaining quantum advantages via noisy intermediate-scale quantum (NISQ) processors. Such systems leverage classical optimization to tune the parameters of a…

量子物理 · 物理学 2022-09-26 Sharu Theresa Jose , Osvaldo Simeone

Analog-to-digital conversion (ADC) is a key bottleneck in scaling DSP-centric receiver architectures to multiGigabit/s speeds. Recent information-theoretic results, obtained under ideal channel conditions (perfect synchronization, no…

信息论 · 计算机科学 2011-12-21 Jaspreet Singh , Upamanyu Madhow

Sparse-view computed tomography (CT) is known as a widely used approach to reduce radiation dose while accelerating imaging through lowered projection views and correlated calculations. However, its severe imaging noise and streaking…

图像与视频处理 · 电气工程与系统科学 2021-01-20 Yitong Liu , Ken Deng , Chang Sun , Hongwen Yang

We present a quantum algorithm for estimating the amplitude content of user-specified sequency bands in quantum-encoded signals. The method employs a sequency-ordered Quantum Walsh-Hadamard Transform (QWHT), a comparator-based oracle that…

量子物理 · 物理学 2026-02-10 Alok Shukla , Prakash Vedula

In this paper, we revisit the sequential source coding framework to analyze fundamental performance limitations of discrete-time stochastic control systems subject to feedback data-rate constraints in finite-time horizon. The basis of our…

系统与控制 · 电气工程与系统科学 2020-05-19 Photios A. Stavrou , Mikael Skoglund , Takashi Tanaka