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相关论文: Principal Component Analysis as a Sanity Check for…

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Motivation: Although principal component analysis is frequently applied to reduce the dimensionality of matrix data, the method is sensitive to noise and bias and has difficulty with comparability and interpretation. These issues are…

统计方法学 · 统计学 2012-12-27 Tomokazu Konishi

Phylogenomics, even more so than traditional phylogenetics, needs to represent the uncertainty in evolutionary trees due to systematic error. Here we illustrate the analysis of genome-scale alignments of yeast, using robust measures of the…

种群与进化 · 定量生物学 2009-12-31 Peter J. Waddell , Ariful Azad

Evaluating consistency in large language models (LLMs) is crucial for ensuring reliability, particularly in complex, multi-step interactions between humans and LLMs. Traditional self-consistency methods often miss subtle semantic changes in…

人工智能 · 计算机科学 2025-06-18 Zhaochen Hong , Haofei Yu , Jiaxuan You

In this paper authors present a general methodology for age dependent reliability analysis of degrading or ageing systems, structures and components.The methodology is based on Bayesian methods and inference, its ability to incorporate…

应用统计 · 统计学 2012-10-19 Robertas Alzbutas , Tomas Iešmantas

Predicting the ancestral sequences of a group of homologous sequences related by a phylogenetic tree has been the subject of many studies, and numerous methods have been proposed to this purpose. Theoretical results are available that show…

种群与进化 · 定量生物学 2013-09-05 Olivier Gascuel , Mike Steel

Object Oriented Data Analysis is a new area in statistics that studies populations of general data objects. In this article we consider populations of tree-structured objects as our focus of interest. We develop improved analysis tools for…

统计方法学 · 统计学 2012-02-14 Burcu Aydın , Gábor Pataki , Haonan Wang , Alim Ladha , Elizabeth Bullitt , J. S. Marron

Phylogenetic trees can be reconstructed from the matrix which contains the distances between all pairs of languages in a family. Recently, we proposed a new method which uses normalized Levenshtein distances among words with same meaning…

计算与语言 · 计算机科学 2015-05-14 Filippo Petroni , Maurizio Serva

The reconstruction of phylogenies from DNA or protein sequences is a major task of computational evolutionary biology. Common phenomena, notably variations in mutation rates across genomes and incongruences between gene lineage histories,…

概率论 · 数学 2012-11-30 Elchanan Mossel , Sebastien Roch

The ancestral sequence reconstruction problem is the inference, back in time, of the properties of common sequence ancestors from measured properties of contemporary populations. Standard algorithms for this problem assume independent…

无序系统与神经网络 · 物理学 2022-02-09 Edwin Rodríguez Horta , Alejandro Lage-Castellanos , Roberto Mulet

In phylogenetic analysis, for non-molecular data, particularly morphology, parsimony optimization is the most commonly employed approach. In the past and present application of the parsimony principle, extra step numbers have been added…

种群与进化 · 定量生物学 2016-10-12 Yue Zhang

Phylogenies (ancestry trees) depict the evolutionary history of an evolving population. In evolutionary computing, a phylogeny can reveal how an evolutionary algorithm steers a population through a search space, illuminating the…

神经与进化计算 · 计算机科学 2023-06-08 Alexander Lalejini , Matthew Andres Moreno , Jose Guadalupe Hernandez , Emily Dolson

Binary trait data record the presence or absence of distinguishing traits in individuals. We treat the problem of estimating ancestral trees with time depth from binary trait data. Simple analysis of such data is problematic. Each homology…

统计方法学 · 统计学 2009-08-31 Geoff K. Nicholls , Russell D. Gray

Many efforts have been devoted to extracting constituency trees from pre-trained language models, often proceeding in two stages: feature definition and parsing. However, this kind of methods may suffer from the branching bias issue, which…

计算与语言 · 计算机科学 2020-12-17 Huayang Li , Lemao Liu , Guoping Huang , Shuming Shi

In this manuscript, we discuss the substantial importance of Bayesian reasoning in Social Science research. Particularly, we focus on foundational elements to fit models under the Bayesian paradigm. We aim to offer a frame of reference for…

统计方法学 · 统计学 2023-06-22 Carolina Luque , Juan Sosa

The structure of a protein is crucial in determining its functionality, and is much more conserved than sequence during evolution. A key task in structural biology is to compare protein structures in order to determine evolutionary…

统计方法学 · 统计学 2019-11-06 Christopher Fallaize , Peter Green , Kanti Mardia , Stuart Barber

Phylogenetic inference, the task of reconstructing how related sequences evolved from common ancestors, is a central objective in evolutionary genomics. The current state-of-the-art methods exploit probabilistic models of sequence evolution…

种群与进化 · 定量生物学 2026-02-19 Luc Blassel , Noémie Sauvage , Pierre Barrat-Charlaix , Bastien Boussau , Nicolas Lartillot , Laurent Jacob

We discuss the problem of estimating the number of principal components in Principal Com- ponents Analysis (PCA). Despite of the importance of the problem and the multitude of solutions proposed in the literature, it comes as a surprise…

统计方法学 · 统计学 2016-07-06 Piotr Sobczyk , Malgorzata Bogdan , Julie Josse

Experiments in research on memory, language, and in other areas of cognitive science are increasingly being analyzed using Bayesian methods. This has been facilitated by the development of probabilistic programming languages such as Stan,…

统计方法学 · 统计学 2020-03-02 Daniel J. Schad , Michael Betancourt , Shravan Vasishth

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

We introduce a novel visual tokenization framework that embeds a provable PCA-like structure into the latent token space. While existing visual tokenizers primarily optimize for reconstruction fidelity, they often neglect the structural…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Xin Wen , Bingchen Zhao , Ismail Elezi , Jiankang Deng , Xiaojuan Qi