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In this paper we develop a new data-driven closure approximation method to compute the statistical properties of quantities of interest in high-dimensional stochastic dynamical systems. The new method relies on estimating conditional…

动力系统 · 数学 2018-09-26 Catherine Brennan , Daniele Venturi

The celebrated Takens' embedding theorem provides a theoretical foundation for reconstructing the full state of a dynamical system from partial observations. However, the classical theorem assumes that the underlying system is deterministic…

动力系统 · 数学 2025-11-07 Jonah Botvinick-Greenhouse , Maria Oprea , Romit Maulik , Yunan Yang

The modeling of realistic magnetic materials requires the inclusion of defects. Based on the pseudospectral Landau-Lifshitz description of magnetisation dynamics, we propose a statistical model that takes into account defects, specifically…

介观与纳米尺度物理 · 物理学 2026-03-12 C. Eagan , M. Copus , E. Iacocca

The reliability and proper function of data-driven applications hinge on the data's continued conformance to the applications' initial design. When data deviates from this initial profile, system behavior becomes unpredictable. Data…

数据库 · 计算机科学 2021-01-05 Anna Fariha , Ashish Tiwari , Arjun Radhakrishna , Sumit Gulwani , Alexandra Meliou

We develop correlated random measures, random measures where the atom weights can exhibit a flexible pattern of dependence, and use them to develop powerful hierarchical Bayesian nonparametric models. Hierarchical Bayesian nonparametric…

机器学习 · 统计学 2016-11-10 Rajesh Ranganath , David Blei

Biased sampling designs can be highly efficient when studying rare (binary) or low variability (continuous) endpoints. We consider longitudinal data settings in which the probability of being sampled depends on a repeatedly measured…

统计方法学 · 统计学 2020-01-14 Lee S. McDaniel , Jonathan S. Schildcrout , Enrique F. Schisterman , Paul J. Rathouz

We formulate extensions to Data Driven Computing for both distance minimizing and entropy maximizing schemes to incorporate time integration. Previous works focused on formulating both types of solvers in the presence of static equilibrium…

计算物理 · 物理学 2017-06-14 Trenton Kirchdoerfer , Michael Ortiz

One of the goals of probabilistic inference is to decide whether an empirically observed distribution is compatible with a candidate Bayesian network. However, Bayesian networks with hidden variables give rise to highly non-trivial…

机器学习 · 统计学 2014-10-14 R. Chaves , L. Luft , T. O. Maciel , D. Gross , D. Janzing , B. Schölkopf

Many statistical models in cosmology can be simulated forwards but have intractable likelihood functions. Likelihood-free inference methods allow us to perform Bayesian inference from these models using only forward simulations, free from…

宇宙学与河外天体物理 · 物理学 2018-04-11 Justin Alsing , Benjamin Wandelt , Stephen Feeney

This paper develops and analyzes a stochastic derivative-free optimization strategy. A key feature is the state-dependent adaptive variance. We prove global convergence in probability with algebraic rate and give the quantitative results in…

最优化与控制 · 数学 2023-02-10 Björn Engquist , Kui Ren , Yunan Yang

Plausibility is a formalization of exact tests for parametric models and generalizes procedures such as Fisher's exact test. The resulting tests are based on cumulative probabilities of the probability density function and evaluate…

统计理论 · 数学 2021-09-13 Stefan Böhringer , Dietmar Lohmann

When are inferences (whether Direct-Likelihood, Bayesian, or Frequentist) obtained from partial data valid? This paper answers this question by offering a new asymptotic theory about inference with missing data that is more general than…

统计理论 · 数学 2022-08-09 Julian Morimoto

We study frustration-free control, a measurement-feedback protocol for quantum state preparation that extends the concept of frustration-free Hamiltonians to stochastic dynamics. The protocol drives many-body systems into highly entangled…

量子物理 · 物理学 2026-04-06 T. Dörstel , T. Iadecola , J. H. Wilson , M. Buchhold

Motivated by applications to goodness of fit testing, the empirical likelihood approach is generalized to allow for the number of constraints to grow with the sample size and for the constraints to use estimated criteria functions. The…

统计理论 · 数学 2013-07-24 Hanxiang Peng , Anton Schick

In scientific inference problems, the underlying statistical modeling assumptions have a crucial impact on the end results. There exist, however, only a few automatic means for validating these fundamental modelling assumptions. The…

统计方法学 · 统计学 2019-05-21 Andreas Svensson , Dave Zachariah , Petre Stoica , Thomas B. Schön

We study measures of quantum information when the space spanned by the set of accessible observables is not closed under products, i.e., we consider systems where an observer may be able to measure the expectation values of two operators,…

高能物理 - 理论 · 物理学 2018-08-15 Sudip Ghosh , Suvrat Raju

The identification of causal effects in observational studies typically relies on two standard assumptions: unconfoundedness and overlap. However, both assumptions are often questionable in practice: unconfoundedness is inherently…

统计方法学 · 统计学 2025-09-17 Han Cui , Xinran Li

Educational policymakers often lack data on student outcomes where standardized tests were not administered. Machine learning can predict unobserved outcomes in target populations using source population data. However, covariate…

Data driven transmission line fault location methods have the potential to more accurately locate faults by extracting fault information from available data. However, most of the data driven fault location methods in the literature are not…

系统与控制 · 电气工程与系统科学 2023-07-20 Yiqi Xing , Yu Liu , Dayou Lu , Xinchen Zou , Xuming He

Prognostics and Health Management ensures the reliability, safety, and efficiency of complex engineered systems by enabling fault detection, anticipating equipment failures, and optimizing maintenance activities throughout an asset…