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The apparent difficulty of efficient distribution-free PAC learning has led to a large body of work on distribution-specific learning. Distributional assumptions facilitate the design of efficient algorithms but also limit their reach and…

机器学习 · 计算机科学 2025-06-23 Guy Blanc , Jane Lange , Carmen Strassle , Li-Yang Tan

The limiting probability distribution is one of the key characteristics of a Markov chain since it shows its long-term behavior. In this paper, for a higher order Markov chain, we establish some properties related to its exact limiting…

概率论 · 数学 2026-03-20 Lixing Han , Jianhong Xu

Variance in predictions across different trained models is a significant, under-explored source of error in fair binary classification. In practice, the variance on some data examples is so large that decisions can be effectively arbitrary.…

We prove several formulas for the distribution of positive roots.

组合数学 · 数学 2018-01-01 Gennadiy Ilyuta

We study the problem of detecting the presence of a single unknown spike in a rectangular data matrix, in a high-dimensional regime where the spike has fixed strength and the aspect ratio of the matrix converges to a finite limit. This…

统计理论 · 数学 2018-06-18 Ahmed El Alaoui , Michael I. Jordan

Following E. Wigner's original vision, we prove that sampling the eigenvalue gaps within the bulk spectrum of a fixed (deformed) Wigner matrix $H$ yields the celebrated Wigner-Dyson-Mehta universal statistics with high probability.…

数学物理 · 物理学 2024-04-18 Giorgio Cipolloni , László Erdős , Dominik Schröder

We investigate the maximal size of distinguished submatrices of a Gaussian random matrix. Of interest are submatrices whose entries have average greater than or equal to a positive constant, and submatrices whose entries are well-fit by a…

统计理论 · 数学 2010-09-06 Xing Sun , Andrew B. Nobel

The Luria-Delbr\"uck distribution is a classical model of mutations in cell kinetics. It is obtained as a limit when the probability of mutation tends to zero and the number of divisions to infinity. It can be interpreted as a compound…

应用统计 · 统计学 2013-09-11 Agnès Hamon , Bernard Ycart

The dispersion relations and S-matrix of the one-dimensional Hubbard model at half filling are considered in a certain scaling limit. (In the process we derive a useful small-coupling expansion of the exact lattice dispersion relations.)…

凝聚态物理 · 物理学 2009-10-22 Ezer Melzer

In many applications involving binary variables, only pairwise dependence measures, such as correlations, are available. However, for multi-way tables involving more than two variables, these quantities do not uniquely determine the joint…

统计方法学 · 统计学 2026-01-13 Roberto Fontana , Elisa Perrone , Fabio Rapallo

In this paper, we study the problems of detection and recovery of hidden submatrices with elevated means inside a large Gaussian random matrix. We consider two different structures for the planted submatrices. In the first model, the…

信息论 · 计算机科学 2023-07-06 Marom Dadon , Wasim Huleihel , Tamir Bendory

The paper proves finite model property and decidability for a family of modal logics. A binary relation $R$ is called pretransitive, if $R^*=\cup_{i\leq m} R^i$ for some $m\geq 0$, where $R^*$ is the transitive reflexive closure of $R$. By…

逻辑 · 数学 2015-12-01 Andrey Kudinov , Ilya Shapirovsky

The application of binary matrices are numerous. Representing a matrix as a mixture of a small collection of latent vectors via low-rank decomposition is often seen as an advantageous method to interpret and analyze data. In this work, we…

数值分析 · 数学 2021-11-03 Derek DeSantis , Erik Skau , Duc P. Truong , Boian Alexandrov

Diffusion models are powerful generative models that produce high-quality samples from complex data. While their infinite-data behavior is well understood, their generalization with finite data remains less clear. Classical learning theory…

机器学习 · 统计学 2026-02-02 Claudia Merger , Sebastian Goldt

We study multi-item profit maximization when there is an underlying distribution over buyers' values. In practice, a full description of the distribution is typically unavailable, so we study the setting where the mechanism designer only…

机器学习 · 计算机科学 2023-05-09 Maria-Florina Balcan , Tuomas Sandholm , Ellen Vitercik

Probabilistic classifiers output a probability distribution on target classes rather than just a class prediction. Besides providing a clear separation of prediction and decision making, the main advantage of probabilistic models is their…

机器学习 · 计算机科学 2019-02-20 Juozas Vaicenavicius , David Widmann , Carl Andersson , Fredrik Lindsten , Jacob Roll , Thomas B. Schön

Density matrices of graphs are combinatorial laplacians normalized to have trace one (Braunstein \emph{et al.} \emph{Phys. Rev. A,} \textbf{73}:1, 012320 (2006)). If the vertices of a graph are arranged as an array, then its density matrix…

计算复杂性 · 计算机科学 2008-07-03 Roland Hildebrand , Stefano Mancini , Simone Severini

The set of subsystems of a finite quantum system (with variables in Z(n)) together with logical connectives, is a distributive lattice. With regard to this lattice, the (where P(m) is the projector to) obeys a supermodularity inequality,…

量子物理 · 物理学 2015-06-23 A. Vourdas

Matrix completion aims to reconstruct a data matrix based on observations of a small number of its entries. Usually in matrix completion a single matrix is considered, which can be, for example, a rating matrix in recommendation system.…

机器学习 · 统计学 2019-10-22 Mokhtar Z. Alaya , Olga Klopp

We diagonalize numerically a Fibonacci matrix with fractal Hilbert space structure of dimension $d_{f}=1.8316...$ We show that the density of states is logarithmically normal while the corresponding level-statistics can be described as…

无序系统与神经网络 · 物理学 2009-11-07 D. E. Katsanos , S. N. Evangelou