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Nonnegative matrix factorization (NMF) has become a very popular technique in machine learning because it automatically extracts meaningful features through a sparse and part-based representation. However, NMF has the drawback of being…

机器学习 · 统计学 2012-12-07 Nicolas Gillis

We study the capability of the Fast Fourier Transform (FFT) to accelerate exact and approximate matrix multiplication without using Strassen-like divide-and-conquer. We present a simple exact algorithm running in $O(n^{2.89})$ time, which…

数据结构与算法 · 计算机科学 2025-11-06 Yahel Uffenheimer , Omri Weinstein

Matrix multiplication is a fundamental task in almost all computational fields, including machine learning and optimization, computer graphics, signal processing, and graph algorithms (static and dynamic). Twin-width is a natural complexity…

数据结构与算法 · 计算机科学 2026-02-24 László Kozma , Michal Opler

This paper shows that it is possible to improve the computational cost, the memory requirements and the accuracy of Quick Fourier Transform (QFT) algorithm for power-of-two FFT (Fast Fourier Transform) just introducing a slight modification…

数据结构与算法 · 计算机科学 2013-01-07 Lorenzo Pasquini

For an $n \times n$ matrix $M$ with entries in $\mathbb{Z}_2$ denote by $R(M)$ the minimal rank of all the matrices obtained by changing some numbers on the main diagonal of $M$. We prove that for each non-negative integer $k$ there is a…

组合数学 · 数学 2021-04-22 Eugene Kogan

We study the stochastic six-vertex model in half-space with generic integrable boundary weights, and define two families of multivariate rational symmetric functions. Using commutation relations between double-row operators, we prove a skew…

组合数学 · 数学 2024-10-08 Alexandr Garbali , Jan de Gier , William Mead , Michael Wheeler

A large fraction of the arithmetic operations required to evaluate deep neural networks (DNNs) consists of matrix multiplications, in both convolution and fully connected layers. We perform end-to-end learning of low-cost approximations of…

机器学习 · 计算机科学 2018-06-11 Michael Tschannen , Aran Khanna , Anima Anandkumar

In the present paper we provide a probabilistic polynomial time algorithm that reduces the complete factorization of any squarefree integer $n$ to counting points on elliptic curves modulo $n$, succeeding with probability $1-\varepsilon$,…

数论 · 数学 2022-10-17 Jorge Jimenez Urroz , Jacek Pomykala

We give an efficient quantum algorithm for the Moebius function $\mu(n)$ from the natural numbers to $\{-1,0,1\}$. The cost of the algorithm is asymptotically quadratic in $\log n$ and does not require the computation of the prime…

量子物理 · 物理学 2016-03-22 Peter J. Love

Multiplication is an essential step in a lot of calculations. In this paper we look at multiplication of 2 binary polynomials of degree at most $n-1$, modulo an irreducible polynomial of degree $n$ with $2n$ input and $n$ output qubits,…

量子物理 · 物理学 2020-02-27 Iggy van Hoof

Matrix multiplication is a cornerstone operation in a wide array of scientific fields, including machine learning and computer graphics. The standard algorithm for matrix multiplication has a complexity of $\mathcal{O}(n^3)$ for $n\times n$…

硬件体系结构 · 计算机科学 2024-06-05 Afzal Ahmad , Linfeng Du , Wei Zhang

In this paper, we present novel deterministic algorithms for multiplying two $n \times n$ matrices approximately. Given two matrices $A,B$ we return a matrix $C'$ which is an \emph{approximation} to $C = AB$. We consider the notion of…

数据结构与算法 · 计算机科学 2014-08-21 Shiva Manne , Manjish Pal

In many practical problems it is not necessary to compute the DFT in a perfect manner including some radar problems. In this article a new multiplication free algorithm for approximate computation of the DFT is introduced. All…

计算复杂性 · 计算机科学 2014-02-05 Alican Bozkurt , Musa Tunç Arslan , Rasim Akin Sevimli , Cem Emre Akbas , A. Enis Çetin

A new version of the Graeffe algorithm for finding all the roots of univariate complex polynomials is proposed. It is obtained from the classical algorithm by a process analogous to renormalization of dynamical systems. This iteration is…

数值分析 · 数学 2025-10-20 Gregorio Malajovich , Jorge P. Zubelli

Simplex gradients are an essential feature of many derivative free optimization algorithms, and can be employed, for example, as part of the process of defining a direction of search, or as part of a termination criterion. The calculation…

最优化与控制 · 数学 2018-07-26 Ian Coope , Rachael Tappenden

Given a set of N points, we have discovered an algorithm that can separate these points from one another by n-dimensional planes. Each point is chosen at random and put into a set S and planes which separate them are determined and put into…

计算几何 · 计算机科学 2015-10-26 K. Eswaran

We present a new procedure to count the number of real zeros of a class of univariate Pfaffian functions of order $1$. The procedure is based on the construction of Sturm sequences for these functions and relies on an oracle for sign…

代数几何 · 数学 2016-01-13 María Laura Barbagallo , Gabriela Jeronimo , Juan Sabia

In this work, a rationalized algorithm for calculating the quotient of two quaternions is presented which reduces the number of underlying real multiplications. Hardware for fast multiplication is much more expensive than hardware for fast…

信号处理 · 电气工程与系统科学 2020-09-02 Aleksandr Cariow , Galina Cariowa

In solving a linear system with iterative methods, one is usually confronted with the dilemma of having to choose between cheap, inefficient iterates over sparse search directions (e.g., coordinate descent), or expensive iterates in…

数值分析 · 计算机科学 2019-08-07 Michael T. Schaub , Maguy Trefois , Paul Van Dooren , Jean-Charles Delvenne

The problem of finding a nontrivial factor of a polynomial f(x) over a finite field F_q has many known efficient, but randomized, algorithms. The deterministic complexity of this problem is a famous open question even assuming the…

计算复杂性 · 计算机科学 2019-02-20 Manuel Arora , Gábor Ivanyos , Marek Karpinski , Nitin Saxena