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We establish sharp well-posedness and approximation estimates for variational saddle point systems at the continuous level. The main results of this note have been known to be true only in the finite dimensional case. Known spectral results…

数值分析 · 数学 2014-11-04 Constantin Bacuta

Diffusion processes are widely used for modelling real-world phenomena. Except for select cases however, analytical expressions do not exist for a diffusion process' transitional probabilities. It is proposed that the cumulant truncation…

统计方法学 · 统计学 2015-03-13 Melvin M. Varughese

The sum of $n$ {non-independent} Bernoulli random variables could be modeled in several different ways. One of these is the Multiplicative Binomial Distribution (MBD), introduced by Altham (1978) and revised by Lovison (1998). In this work,…

统计理论 · 数学 2018-02-26 Francesca Fortunato

We give a simple inequality for the sum of independent bounded random variables. This inequality improves on the celebrated result of Hoeffding in a special case. It is optimal in the limit where the sum tends to a Poisson random variable.

概率论 · 数学 2012-10-25 Christopher R. Dance

Approximate Bayesian computation performs approximate inference for models where likelihood computations are expensive or impossible. Instead simulations from the model are performed for various parameter values and accepted if they are…

统计计算 · 统计学 2015-12-16 Dennis Prangle

Implementing Bayesian inference is often computationally challenging in applications involving complex models, and sometimes calculating the likelihood itself is difficult. Synthetic likelihood is one approach for carrying out inference…

统计计算 · 统计学 2021-03-15 David T. Frazier , David J. Nott , Christopher Drovandi , Robert Kohn

Let $X_1,X_2,...,X_n$ be a sequence of independent or locally dependent random variables taking values in $\mathbb{Z}_+$. In this paper, we derive sharp bounds, via a new probabilistic method, for the total variation distance between the…

统计理论 · 数学 2010-10-11 Michael V. Boutsikas , Eutichia Vaggelatou

We study nonparametric estimation of univariate cumulative distribution functions (CDFs) pertaining to data missing at random. The proposed estimators smooth the inverse probability weighted (IPW) empirical CDF with the Bernstein operator,…

统计理论 · 数学 2026-03-30 Rihab Gharbi , Wissem Jedidi , Salah Khardani , Frédéric Ouimet

We recently proposed a general algorithm for approximating nonstandard Bayesian posterior distributions by minimization of their Kullback-Leibler divergence with respect to a more convenient approximating distribution. In this note we offer…

统计计算 · 统计学 2014-01-10 Tim Salimans

Recent advances in symbolic dynamic programming (SDP) combined with the extended algebraic decision diagram (XADD) data structure have provided exact solutions for mixed discrete and continuous (hybrid) MDPs with piecewise linear dynamics…

人工智能 · 计算机科学 2013-09-27 Luis Gustavo Vianna , Scott Sanner , Leliane Nunes de Barros

We overview results on the topic of Poisson approximation that are missed in existing surveys. The topic of Poisson approximation to the distribution of a sum of integer-valued random variables is presented as well. We do not restrict…

概率论 · 数学 2019-04-12 S. Y. Novak

($k_1,k_2$)-runs have received a special attention in the literature and its distribution can be obtained using combinatorial method (Huang and Tsai) and Markov chain approach (Dafnis et al). But the formulae are difficult to use when the…

概率论 · 数学 2020-07-16 A. N. Kumar , N. S. Upadhye

This paper proves joint convergence of the approximation error for several stochastic integrals with respect to local Brownian semimartingales, for nonequidistant and random grids. The conditions needed for convergence are that the Lebesgue…

概率论 · 数学 2013-09-24 Carl Lindberg , Holger Rootzén

Most of the existing methods for estimating the local intrinsic dimension of a data distribution do not scale well to high-dimensional data. Many of them rely on a non-parametric nearest neighbors approach which suffers from the curse of…

We introduce an \verb|R| package, called \verb|MPS|, for computing the probability density function, computing the cumulative distribution function, computing the quantile function, simulating random variables, and estimating the parameters…

统计计算 · 统计学 2018-09-11 Mahdi Teimouri

The estimation of cumulative distribution functions (CDF) and probability density functions (PDF) is a fundamental practice in applied statistics. However, challenges often arise when dealing with data arranged in grouped intervals. In this…

统计方法学 · 统计学 2023-09-25 Ejike R. Ugba , Jan Gertheiss

We consider the classical problem of discrete distribution estimation using i.i.d. samples in a novel scenario where additional side information is available on the distribution. In large alphabet datasets such as text corpora, such side…

信息论 · 计算机科学 2026-01-19 Haricharan Balasundaram , Andrew Thangaraj

Polynomial approximations to boolean functions have led to many positive results in computer science. In particular, polynomial approximations to the sign function underly algorithms for agnostically learning halfspaces, as well as…

计算复杂性 · 计算机科学 2014-12-09 Mark Bun , Thomas Steinke

Many management decisions involve accumulated random realizations for which only the first and second moments of their distribution are available. The sharp Chebyshev-type bound for the tail probability and Scarf bound for the expected loss…

计量经济学 · 经济学 2025-05-15 Zhaolin Li , Artem Prokhorov

While it's always possible to compute a variational approximation to a posterior distribution, it can be difficult to discover problems with this approximation. We propose two diagnostic algorithms to alleviate this problem. The…

机器学习 · 统计学 2018-10-15 Yuling Yao , Aki Vehtari , Daniel Simpson , Andrew Gelman