中文
相关论文

相关论文: What Trace Powers Reveal About Log-Determinants: C…

200 篇论文

We develop heuristic interpolation methods for the functions $t \mapsto \log \det \left( \mathbf{A} + t \mathbf{B} \right)$ and $t \mapsto \operatorname{trace}\left( (\mathbf{A} + t \mathbf{B})^{p} \right)$ where the matrices $\mathbf{A}$…

数值分析 · 数学 2022-11-15 Siavash Ameli , Shawn C. Shadden

We present randomized algorithms for estimating the trace and deter- minant of Hermitian positive semi-definite matrices. The algorithms are based on subspace iteration, and access the matrix only through matrix vector products. We analyse…

数值分析 · 数学 2017-02-17 Arvind K. Saibaba , Alen Alexanderian , Ilse C. F. Ipsen

The combinatorial problem of learning directed acyclic graphs (DAGs) from data was recently framed as a purely continuous optimization problem by leveraging a differentiable acyclicity characterization of DAGs based on the trace of a matrix…

机器学习 · 计算机科学 2023-01-18 Kevin Bello , Bryon Aragam , Pradeep Ravikumar

Let $A$ be an elliptic pseudodifferential operator of positive order on a compact closed manifold, and let $T$ be a pseudodifferential operator of negative order such that $T^m$ is of trace class. We compute $\log\det(A(I+T))-\log\det…

谱理论 · 数学 2018-02-01 Leonid Friedlander

The scalable calculation of matrix determinants has been a bottleneck to the widespread application of many machine learning methods such as determinantal point processes, Gaussian processes, generalised Markov random fields, graph models…

数值分析 · 计算机科学 2017-04-25 Jack Fitzsimons , Diego Granziol , Kurt Cutajar , Michael Osborne , Maurizio Filippone , Stephen Roberts

We study trace functions on the form $ t\to\tr f(A+tB) $ where $ f $ is a real function defined on the positive half-line, and $ A $ and $ B $ are matrices such that $ A $ is positive definite and $ B $ is positive semi-definite. If $ f $…

算子代数 · 数学 2007-05-23 Frank Hansen

Traces of singular moduli can be approximated by exponential sums of quadratic irrationals. Recently Andersen and Duke used theory of Maass forms to estimate generalized twisted traces with power-saving error bounds. We establish an…

数论 · 数学 2025-04-15 Oscar E. González , Qihang Sun

A few matrix-vector multiplications with random vectors are often sufficient to obtain reasonably good estimates for the norm of a general matrix or the trace of a symmetric positive semi-definite matrix. Several such probabilistic…

数值分析 · 数学 2020-08-11 Zvonimir Bujanović , Daniel Kressner

This work considers a computationally and statistically efficient parameter estimation method for a wide class of latent variable models---including Gaussian mixture models, hidden Markov models, and latent Dirichlet allocation---which…

机器学习 · 计算机科学 2014-11-17 Anima Anandkumar , Rong Ge , Daniel Hsu , Sham M. Kakade , Matus Telgarsky

We introduce a generalized trace functional TR in the spirit of Kontsevich and Vishik's canonical trace for classical SG-pseudodifferential operators on R^n and suitable manifolds, using a finite-part integral regularization technique. This…

偏微分方程分析 · 数学 2020-04-17 Lidia Maniccia , Elmar Schrohe , Joerg Seiler

Randomized trace estimation is a popular and well studied technique that approximates the trace of a large-scale matrix $B$ by computing the average of $x^T Bx$ for many samples of a random vector $X$. Often, $B$ is symmetric positive…

数值分析 · 数学 2021-05-26 Alice Cortinovis , Daniel Kressner

We prove a unified trace-average formula for the $k$-th higher trace $\lambda_k(A)=\operatorname{tr}(\Lambda^k A)$ of a linear operator $A$ on a finite-dimensional normed space. The formula averages the matrix coefficient…

泛函分析 · 数学 2025-10-21 Tomasz Kania

In this paper we consider the trace regression model. Assume that we observe a small set of entries or linear combinations of entries of an unknown matrix $A_0$ corrupted by noise. We propose a new rank penalized estimator of $A_0$. For…

统计理论 · 数学 2011-09-14 Olga Klopp

Calculating or accurately estimating log-determinants of large positive definite matrices is of fundamental importance in many machine learning tasks. While its cubic computational complexity can already be prohibitive, in modern…

机器学习 · 统计学 2025-07-11 Siavash Ameli , Chris van der Heide , Liam Hodgkinson , Fred Roosta , Michael W. Mahoney

We study the problem of estimating the trace of a matrix $\mathbf{A}$ that can only be accessed through Kronecker-matrix-vector products. That is, for any Kronecker-structured vector $\mathrm{x} = \otimes_{i=1}^k \mathrm{x}_i$, we can…

数据结构与算法 · 计算机科学 2025-02-03 Raphael A. Meyer , Haim Avron

Contrary to several other families of lambda terms, no closed formula or generating function is known and none of the sophisticated techniques devised in analytic combinatorics can currently help with counting or generating the set of {\em…

编程语言 · 计算机科学 2016-08-16 Paul Tarau

We give a new combinatorial explanation for well-known relations between determinants and traces of matrix powers. Such relations can be used to obtain polynomial-time and poly-logarithmic space algorithms for the determinant. Our new…

组合数学 · 数学 2022-04-25 Radu Curticapean

The purpose of this paper is to compute the asymptotics of determinants of finite sections of operators that are trace class perturbations of Toeplitz operators. For example, we consider the asymptotics in the case where the matrices are of…

泛函分析 · 数学 2008-07-09 Estelle L. Basor , Torsten Ehrhardt

Matrix determinants play an important role in data analysis, in particular when Gaussian processes are involved. Due to currently exploding data volumes, linear operations - matrices - acting on the data are often not accessible directly…

数据分析、统计与概率 · 物理学 2015-07-08 Sebastian Dorn , Torsten A. Enßlin

We investigate the extremal values of partial traces of matrix tensors under operator norm constraints. To evaluate these multi-linear quantities, we develop a comprehensive graphical formalism that encodes multi-leg partial traces, partial…

算子代数 · 数学 2026-03-31 Benoît Collins , Wangjun Yuan
‹ 上一页 1 2 3 10 下一页 ›