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In this paper a class of optimization problems with uncertain linear constraints is discussed. It is assumed that the constraint coefficients are random vectors whose probability distributions are only partially known. Possibility theory is…

最优化与控制 · 数学 2021-11-30 Romain Guillaume , Adam Kasperski , Pawel Zielinski

Population dynamics models play an important role in a number of fields, such as actuarial science, demography, and ecology, as they help explain past fluctuations and predict future population. The accuracy of these models is often…

统计方法学 · 统计学 2025-11-06 Paolo Onorati , Sofia Ruiz-Suarez , Radu Craiu

We investigate the quantification of demographic risk in a framework consistent with the market-consistent valuation imposed by Solvency II. We provide compact formulas for evaluating inflows and outflows of a portfolio of insurance…

风险管理 · 定量金融 2023-07-07 Francesco Della Corte , Gian Paolo Clemente , Nino Savelli

Balancing a rare and serious possibility against a more common and less serious one is a familiar problem in many situations, such as the prediction of rare diseases. The relative costs of forecasting errors can be used for any prediction…

统计方法学 · 统计学 2009-05-04 Paul T Seed

We present a convex approach to probabilistic segmentation and modeling of time series data. Our approach builds upon recent advances in multivariate total variation regularization, and seeks to learn a separate set of parameters for the…

机器学习 · 统计学 2015-11-17 Matt Wytock , J. Zico Kolter

We demonstrate an approach for exact sampling of certain discrete combinatorial distributions, which is a hybrid of exact Boltzmann sampling and the recursive method, using probabilistic divide-and-conquer (PDC). The approach specializes to…

组合数学 · 数学 2016-08-30 Stephen DeSalvo

Density regression characterizes the conditional density of the response variable given the covariates, and provides much more information than the commonly used conditional mean or quantile regression. However, it is often computationally…

统计方法学 · 统计学 2022-06-15 Yunlu Chen , Nan Zhang

In population genetics, extant samples are usually used for inference of past population genetic forces. With the Kingman coalescent and the backward diffusion equation, inference of the marginal likelihood proceeds from an extant sample…

种群与进化 · 定量生物学 2020-04-03 Claus Vogl , Sandra Peer

Direct quantile regression involves estimating a given quantile of a response variable as a function of input variables. We present a new framework for direct quantile regression where a Gaussian process model is learned, minimising the…

统计方法学 · 统计学 2012-07-03 Alexis Boukouvalas , Remi Barillec , Dan Cornford

In this paper polarized valon distribution is derived from unpolarized valon distribution. In driving polarized valon distribution some unknown parameters exist which must be determined by fitting to experimental data. Here we have used…

高能物理 - 唯象学 · 物理学 2007-05-23 Ali N. Khorramian , A. Mirjalili , S. Atashbar Tehrani

This paper develops a polynomial normal transformation model, whereby various non-normal probability distributions can be simulated by the standard normal distribution. Two methods are presented to determine the coefficients of polynomial…

统计方法学 · 统计学 2015-08-27 Qing Xiao

A coherent mechanism of robust population inversion in atomic and molecular systems by a chirped field is presented. It is demonstrated that a field of sufficiently high chirp rate imposes a certain relative phase between a ground and…

量子物理 · 物理学 2015-06-26 Jiri Vala , Ronnie Kosloff

Conventional statistics begins with a model, and assigns a likelihood of obtaining any particular set of data. The opposite approach, beginning with the data and assigning a likelihood to any particular model, is explored here for the case…

数据分析、统计与概率 · 物理学 2009-10-30 Timothy E. Holy

The theory of two projections is utilized to study two-component Gibbs samplers. Through this theory, previously intractable problems regarding the asymptotic variances of two-component Gibbs samplers are reduced to elementary matrix…

统计理论 · 数学 2024-03-11 Qian Qin

Abstraction is a fundamental tool for reasoning about complex systems. Program abstraction has been utilized to great effect for analyzing deterministic programs. At the heart of program abstraction is the relationship between a concrete…

人工智能 · 计算机科学 2017-07-17 Steven Holtzen , Todd Millstein , Guy Van den Broeck

Based on the probability distribution observed in complex systems and an assumption that the probability distributions of complex systems satisfy a new generalized multiplication, it is proved that the statistical theory of complex systems…

统计力学 · 物理学 2015-06-25 Jincan Chen , Tie Liu , Zhifu Huang , Guozhen Su

We study the fundamental problem of Principal Component Analysis in a statistical distributed setting in which each machine out of $m$ stores a sample of $n$ points sampled i.i.d. from a single unknown distribution. We study algorithms for…

机器学习 · 计算机科学 2017-02-28 Dan Garber , Ohad Shamir , Nathan Srebro

Dynamic probabilistic networks are a compact representation of complex stochastic processes. In this paper we examine how to learn the structure of a DPN from data. We extend structure scoring rules for standard probabilistic networks to…

人工智能 · 计算机科学 2013-02-01 Nir Friedman , Kevin Murphy , Stuart Russell

Recent decades have seen an interest in prediction problems for which Bayesian methodology has been used ubiquitously. Sampling from or approximating the posterior predictive distribution in a Bayesian model allows one to make inferential…

机器学习 · 统计学 2017-09-12 Giri Gopalan

We show that probabilistic computable functions, i.e., those functions outputting distributions and computed by probabilistic Turing machines, can be characterized by a natural generalization of Church and Kleene's partial recursive…

计算机科学中的逻辑 · 计算机科学 2014-06-26 Ugo Dal Lago , Sara Zuppiroli