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相关论文: The spatial Lambda-Fleming-Viot process: an event-…

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Autonomous service mobile robots need to consistently, accurately, and robustly localize in human environments despite changes to such environments over time. Episodic non-Markov Localization addresses the challenge of localization in such…

机器人学 · 计算机科学 2020-08-03 Samer Nashed , Joydeep Biswas

The paper reviews the results obtained for spatial population models and the evolution of the genealogies of these populations during the last decade by the author and his coworkers. The focus is on their large scale behaviour and on the…

概率论 · 数学 2019-07-17 Andreas Greven

We survey results on the description of stochastically evolving genealogies of populations and marked genealogies of multitype populations or spatial populations via tree-valued Markov processes on (marked) ultrametric measure spaces. In…

概率论 · 数学 2018-09-21 Andrej Depperschmidt , Andreas Greven

A class of Fleming-Viot processes with decaying sampling rates and $\alpha$-stable motions that correspond to distributions with growing populations are introduced and analyzed. Almost sure long-time scaling limits for these processes are…

概率论 · 数学 2021-10-12 Michael A. Kouritzin , Khoa Lê

We consider the tree-valued Fleming-Viot process, $(\mathcal X_t)_{t\geq 0}$, with mutation and selection as studied in Depperschmidt, Greven, Pfaffelhuber (2012). This process models the stochastic evolution of the genealogies and…

概率论 · 数学 2013-05-31 Andrej Depperschmidt , Andreas Greven , Peter Pfaffelhuber

We introduce a broad class of spatial models to describe how spatially heterogeneous populations live, die, and reproduce. Individuals are represented by points of a point measure, whose birth and death rates can depend both on spatial…

We investigate the genealogical structure of general critical or subcritical continuous-state branching processes. Analogously to the coding of a discrete tree by its contour function, this genealogical structure is coded by a real-valued…

概率论 · 数学 2007-05-23 Thomas Duquesne , Jean-Francois Le Gall

Large vision models (LVMs) have recently proven to be surprisingly effective time series forecasters, simply by rendering temporal data as images. This success, how ever, rests on a largely unexamined premise: the rendered time series…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Mingrui Zhang , Hanchen Yang , Wengen Li , Xudong Jiang , Yichao Zhang , Jihong Guan , Shuigeng Zhou

Large climate-model ensembles are computationally expensive; yet many downstream analyses would benefit from additional, statistically consistent realizations of spatiotemporal climate variables. We study a generative modeling approach for…

机器学习 · 计算机科学 2026-01-06 Jacquelyn Shelton , Przemyslaw Polewski , Alexander Robel , Matthew Hoffman , Stephen Price

We establish two results about local times of spectrally positive stable processes. The first is a general approximation result, uniform in space and on compact time intervals, in a model where each jump of the stable process may be marked…

概率论 · 数学 2016-09-22 Noah Forman , Soumik Pal , Douglas Rizzolo , Matthias Winkel

We consider a generalization of a one-dimensional stochastic process known in the physical literature as L\'evy-Lorentz gas. The process describes the motion of a particle on the real line in the presence of a random array of marked points,…

Coalescents with multiple collisions (also called Lambda-coalescents or simple exchangeable coalescents) are used as models of genealogies. We study a new class of Markovian coalescent processes connected to a population model with…

概率论 · 数学 2011-03-02 Clément Foucart

Survival analysis concerns the task of predicting the time until an event occurs. Often used in the medical field, survival analysis deals with incomplete (i.e., censored) data, for instance, from patients who did not experience the event…

机器学习 · 计算机科学 2026-05-29 Thalea Schlender , Peter A. N. Bosman , Tanja Alderliesten

This paper propose DualVDT, a generative model for Time-series forecasting. Introduced dual reparametrized variational mechanisms on variational autoencoder (VAE) to tighter the evidence lower bound (ELBO) of the model, prove the advance…

机器学习 · 计算机科学 2022-04-12 Ziang Chen

We consider the evolution of the genealogy of the population currently alive in a Feller branching diffusion model. In contrast to the approach via labeled trees in the continuum random tree world, the genealogies are modeled as equivalence…

概率论 · 数学 2023-12-12 Andrej Depperschmidt , Andreas Greven

We construct a Hunt process that can be described as an isotropic $\alpha$-stable L\'evy process reflected from the complement of a bounded open Lipschitz set. In fact, we introduce a new analytic method for concatenating Markov processes.…

概率论 · 数学 2024-10-07 Krzysztof Bogdan , Markus Kunze

We introduce a general diploid population model with self-fertilization and possible overlapping generations, and study the genealogy of a sample of $n$ genes as the population size $N$ tends to infinity. Unlike traditional approach in…

概率论 · 数学 2026-01-01 Louis Wai-Tong Fan , Maximillian Newman , John Wakeley

Based on the framework of multiple instance learning (MIL), tremendous works have promoted the advances of weakly supervised object detection (WSOD). However, most MIL-based methods tend to localize instances to their discriminative parts…

计算机视觉与模式识别 · 计算机科学 2020-06-24 Ze Chen , Zhihang Fu , Rongxin Jiang , Yaowu Chen , Xian-sheng Hua

We consider a new type of lookdown processes where spatial motion of each individual is influenced by an individual noise and a common noise, which could be regarded as an environment. Then a class of probability measure-valued processes on…

概率论 · 数学 2009-11-05 Hui He

How the neutral diversity is affected by selection and adaptation is investigated in an eco-evolutionary framework. In our model, we study a finite population in continuous time, where each individual is characterized by a trait under…

概率论 · 数学 2019-08-15 Sylvain Billiard , Regis Ferriere , Sylvie Méléard , Viet Chi Tran