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We study superfast algorithms that computes low rank approximation of a matrix (hereafter referred to as LRA) that use much fewer memory cells and arithmetic operations than the input matrix has entries. We first specify a family of 2mn…

Numerical Analysis · Mathematics 2018-06-08 Victor Y. Pan , Qi Luan , John Svadlenka , Liang Zhao

A matrix algorithm runs superfast (aka at sublinear cost) if it involves much fewer flops and memory cells than an input matrix has entries. Big Data are frequently represented by matrices of immense sizes that cannot be handled directly…

Numerical Analysis · Mathematics 2025-11-11 Qi Luan , Victor Y. Pan

Recent studies suggest that context-aware low-rank approximation is a useful tool for compression and fine-tuning of modern large-scale neural networks. In this type of approximation, a norm is weighted by a matrix of input activations,…

Machine Learning · Computer Science 2026-03-26 Uliana Parkina , Maxim Rakhuba

This thesis proposes an advanced, generic and high-level code rewriting and analysis system in the Julia programming language, providing applied equality saturation in the presence of multiple dispatch and metaprogramming. We show how our…

Programming Languages · Computer Science 2022-02-08 Alessandro Cheli

The attention mechanism has gained significant recognition in the field of computer vision due to its ability to effectively enhance the performance of deep neural networks. However, existing methods often struggle to effectively utilize…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Wei Xu , Yi Wan

Large language models (LLMs) have transformed the way we think about language understanding and generation, enthralling both researchers and developers. However, deploying LLMs for inference has been a significant challenge due to their…

Machine Learning · Computer Science 2025-01-03 Dibakar Gope , David Mansell , Danny Loh , Ian Bratt

Coded caching scheme is a technique which reduce the load during peak traffic times in a wireless network system. Placement delivery array (PDA in short) was first introduced by Yan et al.. It can be used to design coded caching scheme. In…

Information Theory · Computer Science 2017-03-28 X. Niu , H. Cao

The number of users that can be spatially multiplexed by a wireless access point depends on the aperture of its antenna array. When the aperture increases and wavelength shrinks, "new" electromagnetic phenomena can be utilized to further…

Information Theory · Computer Science 2022-09-08 Parisa Ramezani , Emil Björnson

Large language models (LLMs) generate text embeddings from text data, producing vector representations that capture the semantic meaning and contextual relationships of words. However, the high dimensionality of these embeddings often…

Computation and Language · Computer Science 2025-08-12 Zhanye Luo , Yuefeng Han , Xiufan Yu

Recently a novel multi-antenna architecture termed ray antenna array (RAA) was proposed, where several simple uniform linear arrays (sULAs) are arranged in a ray-like structure to enhance communication and sensing performance. By…

Signal Processing · Electrical Eng. & Systems 2026-03-19 Haoyu Jiang , Zhenjun Dong , Zhiwen Zhou , Yong Zeng

Analog coding is a low-complexity method to combat erasures, based on linear redundancy in the signal space domain. Previous work examined "band-limited discrete Fourier transform (DFT)" codes for Gaussian channels with erasures or…

Information Theory · Computer Science 2018-09-20 Marina Haikin

Coded caching scheme originally proposed by Maddah-Ali and Niesen (MN) achieves an optimal transmission rate $R$ under uncoded placement but requires a subpacketization level $F$ which increases exponentially with the number of users $K$…

Information Theory · Computer Science 2024-02-27 Rashid Ummer N. T. , B. Sundar Rajan

Large language models (LLMs) are transforming electronic design automation (EDA) by enhancing design stages such as schematic design, simulation, netlist synthesis, and place-and-route. Existing methods primarily focus these optimisations…

This paper investigates near-field XL-MIMO systems with sparse uniform planar arrays (UPAs). Based on the Green's function-based channel model, the paper derives closed-form expressions for the signal beam power when the distance coordinate…

Signal Processing · Electrical Eng. & Systems 2025-10-16 Xianzhe Chen , Hong Ren , Cunhua Pan , Cheng-Xiang Wang , Jiangzhou Wang

This paper develops an ensemble method for fine-tuning a language model to multiple datasets. Existing methods, such as quantized LoRA (QLoRA), are efficient when adapting to a single dataset. When training on multiple datasets of different…

Machine Learning · Computer Science 2025-05-29 Dongyue Li , Ziniu Zhang , Lu Wang , Hongyang R. Zhang

Quantum algorithms have emerged as a promising tool to solve combinatorial optimization problems. The quantum walk optimization algorithm (QWOA) is one such variational approach that has recently gained attention. In the broader context of…

This paper proposed a low-complexity antenna layout-aware (ALA) covariance matrix estimation method. In the estimation process, antenna layout is assumed known at the estimator. Using this information, the estimator finds antenna pairs with…

Information Theory · Computer Science 2019-05-01 Shangbin Wu , Xiaoqing Zhang

The Shapley value, and its broader family of semi-values, has received much attention in various attribution problems. A fundamental and long-standing challenge is their efficient approximation, since exact computation generally requires an…

Machine Learning · Computer Science 2026-04-10 Weida Li , Yaoliang Yu , Bryan Kian Hsiang Low

Most of current anomaly detection models assume that the normal pattern remains same all the time. However, the normal patterns of Web services change dramatically and frequently. The model trained on old-distribution data is outdated after…

Machine Learning · Computer Science 2024-02-26 Feiyi Chen , Zhen Qin , Yingying Zhang , Shuiguang Deng , Yi Xiao , Guansong Pang , Qingsong Wen

In this paper, a new structure of cooperative learning automata so-called extended learning automata (eDLA) is introduced. Based on the proposed structure, a new iterative randomized heuristic algorithm for finding optimal sub-graph in a…

Artificial Intelligence · Computer Science 2013-08-14 M. R. Mollakhalili Meybodi , M. R. Meybodi