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Estimating model parameters is a crucial step in mathematical modelling and typically involves minimizing the disagreement between model predictions and experimental data. This calibration data can change throughout a study, particularly if…

定量方法 · 定量生物学 2023-11-03 Tyler Cassidy

Optimization-based state estimation is useful for nonlinear or constrained dynamic systems for which few general methods with established properties are available. The two fundamental forms are moving horizon estimation (MHE) which uses the…

最优化与控制 · 数学 2017-09-27 Wuhua Hu

This paper deals with nonparametric maximum likelihood estimation for Gaussian locally stationary processes. Our nonparametric MLE is constructed by minimizing a frequency domain likelihood over a class of functions. The asymptotic behavior…

统计理论 · 数学 2011-11-10 Rainer Dahlhaus , Wolfgang Polonik

A fundamental question in the field of molecular computation is what computational tasks a biochemical system can carry out. In this work, we focus on the problem of finding the maximum likelihood estimate (MLE) for log-affine models. We…

分子网络 · 定量生物学 2025-10-06 Oskar Henriksson , Carlos Améndola , Jose Israel Rodriguez , Polly Y. Yu

Many event sequence data exhibit mutually exciting or inhibiting patterns. Reliable detection of such temporal dependency is crucial for scientific investigation. The de facto model is the Multivariate Hawkes Process (MHP), whose impact…

应用统计 · 统计学 2023-05-31 Yu Chen , Fengpei Li , Anderson Schneider , Yuriy Nevmyvaka , Asohan Amarasingham , Henry Lam

In this article we focus on Maximum Likelihood estimation (MLE) for the static parameters of hidden Markov models (HMMs). We will consider the case where one cannot or does not want to compute the conditional likelihood density of the…

统计计算 · 统计学 2012-10-18 Elena Ehrlich , Ajay Jasra , Nikolas Kantas

An extension of the Hawkes process, the Marked Hawkes process distinguishes itself by featuring variable jump size across each event, in contrast to the constant jump size observed in a Hawkes process without marks. While extensive…

机器学习 · 统计学 2024-02-08 Sobin Joseph , Shashi Jain

Driven by the recent surge in neural-inspired modeling, point processes have gained significant traction in systems and control. While the Hawkes process is the standard model for characterizing random event sequences with memory,…

统计方法学 · 统计学 2026-02-25 Xinhui Rong , Girish N. Nair

We suggest an iterative approach to computing K-step maximum likelihood estimates (MLE) of the parametric components in semiparametric models based on their profile likelihoods. The higher order convergence rate of K-step MLE mainly depends…

统计理论 · 数学 2007-08-23 Guang Cheng

We consider the problem of estimating the distribution function, the density and the hazard rate of the (unobservable) event time in the current status model. A well studied and natural nonparametric estimator for the distribution function…

统计理论 · 数学 2010-01-13 Piet Groeneboom , Geurt Jongbloed , Birgit I. Witte

Probabilistic modelling of power systems operation and planning processes depends on data-driven methods, which require sufficiently large datasets. When historical data lacks this, it is desired to model the underlying data generation…

机器学习 · 统计学 2024-09-26 Kutay Bölat , Simon H. Tindemans , Peter Palensky

Maximum-likelihood estimation (MLE) is widely used in sequence to sequence tasks for model training. It uniformly treats the generation/prediction of each target token as multi-class classification, and yields non-smooth prediction…

计算与语言 · 计算机科学 2018-12-13 Chengyue Gong , Xu Tan , Di He , Tao Qin

This paper proposes a novel exact maximum likelihood (ML) estimation method for general Gaussian processes, where all parameters are estimated jointly. The exact ML estimator (MLE) is consistent and asymptotically normally distributed. We…

统计理论 · 数学 2025-09-08 Tetsuya Takabatake , Jun Yu , Chen Zhang

Mixture of Experts (MoE) are successful models for modeling heterogeneous data in many statistical learning problems including regression, clustering and classification. Generally fitted by maximum likelihood estimation via the well-known…

机器学习 · 统计学 2018-10-30 Faicel Chamroukhi , Bao-Tuyen Huynh

Maximum likelihood estimation in nonlinear models can exhibit substantial instability in finite samples when the data provide limited information about certain parameters. Such instability is driven by rare but extreme realizations of the…

统计方法学 · 统计学 2026-04-15 Masamune Iwasawa

We consider a one dimensional sub-ballistic random walk evolving in a parametric i.i.d. random environment. We study the asymptotic properties of the maximum likelihood estimator (MLE) of the parameter based on a single observation of the…

概率论 · 数学 2014-05-13 Mikael Falconnet , Dasha Loukianova , Arnaud Gloter

Linear multivariate Hawkes processes (MHP) are a fundamental class of point processes with self-excitation. When estimating parameters for these processes, a difficulty is that the two main error functionals, the log-likelihood and the…

统计方法学 · 统计学 2021-11-23 Álvaro Cartea , Samuel N. Cohen , Saad Labyad

We study statistical inference for small-noise-perturbed multiscale dynamical systems. We prove consistency, asymptotic normality, and convergence of all scaled moments of an appropriately-constructed maximum likelihood estimator (MLE) for…

概率论 · 数学 2016-06-16 Siragan Gailus , Konstantinos Spiliopoulos

Modelling and forecasting the occurrence of extreme events is especially difficult when the event process is nonstationary, with changes in both the rate at which extremes occur and the magnitude of the extremes when they occur. We approach…

统计方法学 · 统计学 2026-05-06 Gordon J. Ross , Dean Markwick

When the data are sparse, optimization of hyperparameters of the kernel in Gaussian process regression by the commonly used maximum likelihood estimation (MLE) criterion often leads to overfitting. We show that choosing hyperparameters (in…

统计方法学 · 统计学 2023-01-27 Sergei Manzhos , Manabu Ihara