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相关论文: Bayesian phylogenetic estimation of fossil ages

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Estimating phylogenetic trees is an important problem in evolutionary biology, environmental policy and medicine. Although trees are estimated, their uncertainties are discarded by mathematicians working in tree space. Here we explicitly…

统计方法学 · 统计学 2017-10-16 Amy D. Willis , Rayna C. Bell

The search for similarity and dissimilarity measures on phylogenetic trees has been motivated by the computation of consensus trees, the search by similarity in phylogenetic databases, and the assessment of clustering results in…

种群与进化 · 定量生物学 2011-11-09 Francesc Rossello , Gabriel Valiente

Dental age is one of the most reliable methods to identify an individual's age. By using dental panoramic radiography (DPR) images, physicians and pathologists in forensic sciences try to establish the chronological age of individuals with…

图像与视频处理 · 电气工程与系统科学 2023-10-31 Isa Atas , Cuneyt Ozdemir , Musa Atas , Yahya Dogan

Huelsenbeck and Rannala (2004, Systematic Biology 53, 904-913) presented a series of simulations in order to assess the extent to which the bayesian posterior probabilities associated with phylogenetic trees represent the standard…

种群与进化 · 定量生物学 2010-01-21 David A. Morrison

Phylogenetic trees describe the relationships between species in the evolutionary process, and provide information about the rates of diversification. To understand the mechanisms behind macroevolution, we consider a class of multitype…

种群与进化 · 定量生物学 2024-10-07 Mingqi He , Sophie Hautphenne , Yao-ban Chan

Pre-main sequence (PMS) models provide invaluable tools for the study of star forming regions as they allow to assign masses and ages to young stars. Thus it is of primary importance to test the models against observations of PMS stars with…

太阳与恒星天体物理 · 物理学 2015-05-30 Mario Gennaro , Pier Giorgio Prada Moroni , Emanuele Tognelli

Using data drawn from large-scale databases, a number of interesting trends in the fossil record have been observed in recent years. These include the average decline in extinction rates throughout the Phanerozoic, the average increase in…

adap-org · 物理学 2007-05-23 M. E. J. Newman , Paolo Sibani

Machine-learning-based age estimation has received lots of attention. Traditional age estimation mechanism focuses estimation age error, but ignores that there is a deviation between the estimated age and real age due to disease.…

计算机视觉与模式识别 · 计算机科学 2021-03-12 Fan Li , Yongming Li , Pin Wang , Jie Xiao , Fang Yan , Xinke Li

Life emerged on the Earth within the first quintile of its habitable window, but a technological civilization did not blossom until its last. Efforts to infer the rate of abiogenesis, based on its early emergence, are frustrated by the…

地球与行星天体物理 · 物理学 2022-06-08 David Kipping

Understanding Earth's core dynamics over millennial timescales requires models that jointly describe the evolution of the geomagnetic field and core surface flow, while accommodating the sparse, irregular, and uncertain nature of…

地球物理 · 物理学 2026-05-27 Andreas Nilsson , Neil Suttie , Marie Troyano , Nicolas Gillet , Julien Aubert , Anders Irbäck

In this third paper of a series on the precision of obtaining ages of stellar populations using the full spectrum fitting technique, we examine the precision of this technique in deriving possible age spreads within a star cluster. We test…

星系天体物理 · 物理学 2021-05-12 Randa Asa'd , Paul Goudfrooij , A. M. As'ad , H. G. El-Mir , L. Begum , A. Aljasmi , O. Almatroushi

Understanding the evolution of a set of genes or species is a fundamental problem in evolutionary biology. The problem we study here takes as input a set of trees describing {possibly discordant} evolutionary scenarios for a given set of…

数据结构与算法 · 计算机科学 2019-07-10 Cedric Chauve , Mark Jones , Manuel Lafond , Céline Scornavacca , Mathias Weller

A deep understanding of the Milky Way galaxy, its formation and evolution requires observations of huge numbers of stars. Stellar photometry, therefore, provides an economical method to obtain intrinsic stellar parameters. With the addition…

太阳与恒星天体物理 · 物理学 2019-01-30 Louise M. Howes , Lennart Lindegren , Sofia Feltzing , Ross P. Church , Thomas Bensby

In this paper we examine the usefulness of two classes of algorithms Distance Methods, Discrete Character Methods (Felsenstein and Felsenstein 2003) widely used in genetics, for predicting the family relationships among a set of related…

计算与语言 · 计算机科学 2014-01-06 Taraka Rama , Sudheer Kolachina , Lakshmi Bai B

Inferring evolutionary histories (phylogenetic trees) has important applications in biology, criminology and public health. However, phylogenetic trees are complex mathematical objects that reside in a non-Euclidean space, which complicates…

统计方法学 · 统计学 2017-10-16 Amy Willis

Phylogenetic comparative methods (PCMs) are widely used to study trait evolution. However, many evolutionary histories involve reticulate evolutionary scenarios, such as hybridization, that violate core assumptions of these methods. In this…

种群与进化 · 定量生物学 2026-03-30 Lydia Morley , Emma Lehmberg , Sungsik Kong

Phylogeny can be inferred using two sources of data from an organism: morphological data and molecular data. Historically, phylogenies were usually inferred using morphological characters, but some morphological features may not necessarily…

种群与进化 · 定量生物学 2023-12-19 Ray Han

The theory of evolution states that the diversity of species can be explained by descent with modification. Therefore, all living beings are related through a common ancestor. This evolutionary process must have left traces in our molecular…

定量方法 · 定量生物学 2018-08-09 Patricio Maturana Russel

Background: While deep learning technology, which has the capability of obtaining latent representations based on large-scale data, can be a potential solution for the discovery of a novel aging biomarker, existing deep learning methods for…

机器学习 · 计算机科学 2023-02-02 Seong-Eun Moon , Ji Won Yoon , Shinyoung Joo , Yoohyung Kim , Jae Hyun Bae , Seokho Yoon , Haanju Yoo , Young Min Cho

We use a Bayesian regression technique (similar to a recent analysis by Rinaldi et al) to obtain a central estimate for the $W$-boson mass using four different combinations of datasets compiled by the PDG including the 2022 CDF result. We…

高能物理 - 实验 · 物理学 2023-07-06 Aaseesh Rallapalli , Shantanu Desai