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The low efficiency of far-field wireless power transfer (WPT) limits the fundamental rate-energy (R-E) performance trade-off of the simultaneous wireless information and power transfer (SWIPT) system. To address this challenge, we propose…

信息论 · 计算机科学 2020-01-03 Qingqing Wu , Rui Zhang

Increased reliance on graphics processing units (GPUs) for high-intensity computing tasks raises challenges regarding energy consumption. To address this issue, dynamic voltage and frequency scaling (DVFS) has emerged as a promising…

性能 · 计算机科学 2024-07-19 Qiang Wang , Laiyi Li , Weile Luo , Yijia Zhang , Bingqiang Wang

We propose a scalable preconditioned primal-dual hybrid gradient algorithm for solving partial differential equations (PDEs). We multiply the PDE with a dual test function to obtain an inf-sup problem whose loss functional involves…

数值分析 · 数学 2026-05-26 Shu Liu , Stanley Osher , Wuchen Li

Dictionary learning has recently emerged as a promising approach for mechanistic interpretability of large transformer models. Disentangling high-dimensional transformer embeddings requires algorithms that scale to high-dimensional data…

机器学习 · 计算机科学 2026-04-30 Romeo Valentin , Sydney M. Katz , Vincent Vanhoucke , Mykel J. Kochenderfer

Significant progress has been made in semi-supervised hyperspectral image (HSI) classification regarding feature extraction and classification performance. However, due to high annotation costs and limited sample availability,…

计算机视觉与模式识别 · 计算机科学 2026-01-27 Yunfei Qiu , Qiqiong Ma , Tianhua Lv , Li Fang , Shudong Zhou , Wei Yao

Estimating singular subspaces from noisy matrices is a fundamental problem with wide-ranging applications across various fields. Driven by the challenges of data integration and multi-view analysis, this study focuses on estimating shared…

统计理论 · 数学 2024-11-27 Zhengchi Ma , Rong Ma

Spectral embedding based on the Singular Value Decomposition (SVD) is a widely used "preprocessing" step in many learning tasks, typically leading to dimensionality reduction by projecting onto a number of dominant singular vectors and…

机器学习 · 统计学 2015-09-29 Dinesh Ramasamy , Upamanyu Madhow

Processing-in-Memory (PIM) architectures offer promising solutions for efficiently handling AI applications in energy-constrained edge environments. While traditional PIM designs enhance performance and energy efficiency by reducing data…

硬件体系结构 · 计算机科学 2025-12-09 Sangmin Jeon , Kangju Lee , Kyeongwon Lee , Woojoo Lee

Important computational physics problems are often large-scale in nature, and it is highly desirable to have robust and high performing computational frameworks that can quickly address these problems. However, it is no trivial task to…

数学软件 · 计算机科学 2017-09-18 J. Chang , K. B. Nakshatrala , M. G. Knepley , L. Johnsson

Distance weighted discrimination (DWD) is a margin-based classifier with an interesting geometric motivation. DWD was originally proposed as a superior alternative to the support vector machine (SVM), however DWD is yet to be popular…

机器学习 · 统计学 2015-08-25 Boxiang Wang , Hui Zou

We present a classical enhancement to improve the accuracy of the Hybrid variant (Hybrid HHL) of the quantum algorithm for solving linear systems of equations proposed by Harrow, Hassidim, and Lloyd (HHL). We achieve this by using higher…

量子物理 · 物理学 2024-11-12 Jack Morgan , Eric Ghysels , Hamed Mohammadbagherpoor

Hybrid density functional approximations (DFAs) offer compelling accuracy for ab initio electronic-structure simulations of molecules, nanosystems, and bulk materials, addressing some deficiencies of computationally cheaper, frequently used…

We introduce a method for efficiently solving initial-boundary value problems (IBVPs) that uses Lie symmetries to enforce the associated partial differential equation (PDE) exactly by construction. By leveraging symmetry transformations,…

The numerical solution of stochastic partial differential equations (SPDE) presents challenges not encountered in the simulation of PDEs or SDEs. Indeed, the roughness of the noise in conjunction with nonlinearities in the drift typically…

概率论 · 数学 2016-08-03 Nawaf Bou-Rabee

We have recently implemented a new version of the quasiparticle self-consistent GW (QSGW) method in the ecalj package released at http://github.com/tkotani/ecalj. Since the new version of the ecalj is numerically stable and accurate…

材料科学 · 物理学 2016-04-20 Daiki Deguchi , Kazunori Sato , Hiori Kino , Takao Kotani

Large language models (LLMs) have demonstrated exceptional proficiency in understanding and generating human language, but efficient inference on resource-constrained embedded devices remains challenging due to large model sizes and…

硬件体系结构 · 计算机科学 2025-07-15 Weihong Xu , Haein Choi , Po-kai Hsu , Shimeng Yu , Tajana Rosing

We present an efficient incremental SLAM back-end that achieves the accuracy of full batch optimization while substantially reducing computational cost. The proposed approach combines two complementary ideas: information-guided gating (IGG)…

机器人学 · 计算机科学 2026-01-14 Reza Arablouei

We investigate the problem of minimizing the expectation of smooth nonconvex functions in a distributed setting with multiple parallel workers that are able to compute stochastic gradients. A significant challenge in this context is the…

最优化与控制 · 数学 2025-06-16 Artavazd Maranjyan , Omar Shaikh Omar , Peter Richtárik

For large-scale eigenvalue problems requiring many mutually orthogonal eigenvectors, traditional numerical methods suffer substantial computational and communication costs with limited parallel scalability, primarily due to explicit…

数值分析 · 数学 2026-01-12 Shengyue Wang , Aihui Zhou

Quantization has been proven to be a vital method for improving the inference efficiency of deep neural networks (DNNs). However, it is still challenging to strike a good balance between accuracy and efficiency while quantizing DNN weights…

计算机视觉与模式识别 · 计算机科学 2021-11-25 Cheng Gong , Ye Lu , Kunpeng Xie , Zongming Jin , Tao Li , Yanzhi Wang