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The gradual accumulation of damage and dysregulation during the aging of living organisms can be quantified. Even so, the aging process is complex and has multiple interacting physiological scales -- from the molecular to cellular to whole…

定量方法 · 定量生物学 2021-05-06 Spencer Farrell , Garrett Stubbings , Kenneth Rockwood , Arnold Mitnitski , Andrew Rutenberg

Probabilistic models learned as density estimators can be exploited in representation learning beside being toolboxes used to answer inference queries only. However, how to extract useful representations highly depends on the particular…

机器学习 · 计算机科学 2016-08-12 Antonio Vergari , Nicola Di Mauro , Floriana Esposito

What is a population? This review considers how a population may be defined in terms of understanding the structure of the underlying genetics of the individuals involved. The main approach is to consider statistically identifiable groups…

种群与进化 · 定量生物学 2013-06-05 Daniel John Lawson

Various methodological options exist on evaluating differences in both subgroups and the overall population. Most desirable is the simultaneous study of multiple endpoints in several populations. We investigate a newer method using multiple…

Statistical shape modeling (SSM) is an enabling quantitative tool to study anatomical shapes in various medical applications. However, directly using 3D images in these applications still has a long way to go. Recent deep learning methods…

计算机视觉与模式识别 · 计算机科学 2023-10-04 Abu Zahid Bin Aziz , Jadie Adams , Shireen Elhabian

Ecologists are interested in modeling the population growth of species in various ecosystems. Studying population dynamics can assist environmental managers in making better decisions for the environment. Traditionally, the sampling of…

统计方法学 · 统计学 2021-02-04 Rebecca E. Atanga , Edward L. Boone , Ryad A. Ghanam , Ben Stewart-Koster

In this article, discrete and stochastic changes in (effective) population size are incorporated into the spectral representation of a biallelic diffusion process for drift and small mutation rates. A forward algorithm inspired by…

种群与进化 · 定量生物学 2024-03-11 Lynette Caitlin Mikula , Claus Vogl

Increasing pressures on the environment are generating an ever-increasing need to manage animal and plant populations sustainably, and to protect and rebuild endangered populations. Effective management requires reliable mathematical…

统计方法学 · 统计学 2009-09-29 Stephen T. Buckland , Ken B. Newman , Carmen Fernández , Len Thomas , John Harwood

We introduce an Expanded Parts Model (EPM) for recognizing human attributes (e.g. young, short hair, wearing suit) and actions (e.g. running, jumping) in still images. An EPM is a collection of part templates which are learnt…

计算机视觉与模式识别 · 计算机科学 2016-11-17 Gaurav Sharma , Frederic Jurie , Cordelia Schmid

The concept of scalability analysis of numerical parallel applications has been revisited, with the specific goals defined for the performance estimation of research applications. A series of Community Climate Model System (CCSM) numerical…

分布式、并行与集群计算 · 计算机科学 2016-11-08 Natalie Perlin , Joel P. Zysman , Ben P. Kirtman

We give a cross-disciplinary survey on ``population'' Monte Carlo algorithms. In these algorithms, a set of ``walkers'' or ``particles'' is used as a representation of a high-dimensional vector. The computation is carried out by a random…

统计力学 · 物理学 2015-06-24 Yukito IBA

Markov population models (MPMs) are a widely used modelling formalism in the area of computational biology and related areas. The semantics of a MPM is an infinite-state continuous-time Markov chain. In this paper, we use the established…

数值分析 · 计算机科学 2014-06-10 David Spieler , Ernst Moritz Hahn , Lijun Zhang

Language models (LMs) are increasingly used to simulate human-like responses in scenarios where accurately mimicking a population's behavior can guide decision-making, such as in developing educational materials and designing public…

计算与语言 · 计算机科学 2024-07-23 Joy He-Yueya , Wanjing Anya Ma , Kanishk Gandhi , Benjamin W. Domingue , Emma Brunskill , Noah D. Goodman

Modeling of growth (or decay) curves arises in many fields such as microbiology, epidemiology, marketing, and econometrics. Parametric forms like Logistic and Gompertz are often used for modeling such monotonic patterns. While useful for…

统计方法学 · 统计学 2025-04-15 Rajesh Selukar

Control of legged robots is a challenging problem that has been investigated by different approaches, such as model-based control and learning algorithms. This work proposes a novel Imitating and Finetuning Model Predictive Control (IFM)…

机器人学 · 计算机科学 2026-05-28 Donghoon Youm , Hyunyoung Jung , Hyeongjun Kim , Jemin Hwangbo , Hae-Won Park , Sehoon Ha

We consider methods for transporting a prediction model and assessing its performance for use in a new target population, when outcome and covariate information for model development is available from a simple random sample from the source…

应用统计 · 统计学 2021-04-15 Jon A. Steingrimsson , Constantine Gatsonis , Issa J. Dahabreh

As being widely used to measure human intelligence, Raven's Progressive Matrices (RPM) tests also pose a great challenge for AI systems. There is a long line of computational models for solving RPM, starting from 1960s, either to understand…

人工智能 · 计算机科学 2023-02-09 Yuan Yang , Mathilee Kunda

Statistical Shape Modeling (SSM) is a valuable tool for investigating and quantifying anatomical variations within populations of anatomies. However, traditional correspondence-based SSM generation methods have a prohibitive inference…

计算机视觉与模式识别 · 计算机科学 2023-07-21 Jadie Adams , Shireen Elhabian

Interior point methods (IPMs) are a common approach for solving linear programs (LPs) with strong theoretical guarantees and solid empirical performance. The time complexity of these methods is dominated by the cost of solving a linear…

最优化与控制 · 数学 2022-02-04 Gregory Dexter , Agniva Chowdhury , Haim Avron , Petros Drineas

We investigate the scaling properties of the Penna model, which has become a popular tool for the study of population dynamics and evolutionary problems in recent years. We find that the model generates a normalised age distribution for…

种群与进化 · 定量生物学 2009-11-11 E. Brigatti , J. S. Sa' Martins , I. Roditi