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There is a widespread and longstanding belief that machine learning models are biased towards the majority class when learning from imbalanced binary response data, leading them to neglect or ignore the minority class. Motivated by a recent…

机器学习 · 统计学 2026-01-29 Nathan Phelps , Daniel J. Lizotte , Douglas G. Woolford

Genealogical networks, also known as family trees or population pedigrees, are commonly studied by genealogists wanting to know about their ancestry, but they also provide a valuable resource for disciplines such as digital demography,…

社会与信息网络 · 计算机科学 2018-02-19 Eric Malmi , Aristides Gionis , Arno Solin

Given i.i.d. data from an unknown distribution, we consider the problem of predicting future items. An adaptive way to estimate the probability density is to recursively subdivide the domain to an appropriate data-dependent granularity. A…

统计理论 · 数学 2007-06-13 Marcus Hutter

In this paper, we perform Bayesian Inference to analyze spatial tree count data from the Timiskaming and Abitibi River forests in Ontario, Canada. We consider a Bayesian Generalized Linear Geostatistical Model and implement a Markov Chain…

应用统计 · 统计学 2018-07-04 Reihaneh Entezari , Patrick E. Brown , Jeffrey S. Rosenthal

We consider a multitype Galton-Watson process that allows for the mutation and reversion of individual types in discrete and continuous time. In this setting, we explicitly compute the time evolution of quantities such as the mean and…

种群与进化 · 定量生物学 2026-01-01 Qiao Huang , Nicolas Privault

In generative models with obscured likelihood, Approximate Bayesian Computation (ABC) is often the tool of last resort for inference. However, ABC demands many prior parameter trials to keep only a small fraction that passes an acceptance…

机器学习 · 计算机科学 2024-04-17 Sean O'Hagan , Jungeum Kim , Veronika Rockova

Decision trees and their ensembles are popular in machine learning as easy-to-understand models. Several techniques have been proposed in the literature for learning tree-based classifiers, with different techniques working well for data…

机器学习 · 计算机科学 2025-05-20 Maria-Florina Balcan , Dravyansh Sharma

The uncertainty of classification outcomes is of crucial importance for many safety critical applications including, for example, medical diagnostics. In such applications the uncertainty of classification can be reliably estimated within a…

人工智能 · 计算机科学 2007-05-23 V. Schetinin , J. E. Fieldsend , D. Partridge , W. J. Krzanowski , R. M. Everson , T. C. Bailey , A. Hernandez

We consider the problem of inferring an ancestral state from observations at the leaves of a tree, assuming the state evolves along the tree according to a two-state symmetric Markov process. We establish a general branching rate condition…

概率论 · 数学 2021-01-01 Sebastien Roch , Kun-Chieh Wang

In the information age, it has become increasingly common for data containing records about overlapping individuals to be distributed across multiple sources, making it necessary to identify which records refer to the same individual. The…

统计方法学 · 统计学 2025-06-09 L. Drew , A. Kaplan , I. Breckheimer

We consider random binary trees that appear as the output of certain standard algorithms for sorting and searching if the input is random. We introduce the subtree size metric on search trees and show that the resulting metric spaces…

概率论 · 数学 2014-05-06 Rudolf Grübel

With the advance of experimental techniques such as time-lapse fluorescence microscopy, the availability of single-cell trajectory data has vastly increased, and so has the demand for computational methods suitable for parameter inference…

定量方法 · 定量生物学 2016-07-06 Irena Kuzmanovska , Andreas Milias-Argeitis , Christoph Zechner , Mustafa Khammash

Lateral transfer, a process whereby species exchange evolutionary traits through non-ancestral relationships, is a frequent source of model misspecification in phylogenetic inference. Lateral transfer obscures the phylogenetic signal in the…

应用统计 · 统计学 2017-03-20 Luke J. Kelly , Geoff K. Nicholls

The spread of infectious disease in a human community or the proliferation of fake news on social media can be modeled as a randomly growing tree-shaped graph. The history of the random growth process is often unobserved but contains…

概率论 · 数学 2021-01-15 Harry Crane , Min Xu

We study some essential arithmetic properties of a new tree-based number representation, {\em hereditarily binary numbers}, defined by applying recursively run-length encoding of bijective base-2 digits. Our representation expresses giant…

数据结构与算法 · 计算机科学 2013-06-06 Paul Tarau

The problem of reconstructing evolutionary trees or phylogenies is of great interest in computational biology. A popular model for this problem assumes that we are given the set of leaves (current species) of an unknown binary tree and the…

数据结构与算法 · 计算机科学 2022-06-16 Eshwar Ram Arunachaleswaran , Anindya De , Sampath Kannan

We propose a fully Bayesian approach for causal inference with multivariate categorical data based on staged tree models, a class of probabilistic graphical models capable of representing asymmetric and context-specific dependencies. To…

统计方法学 · 统计学 2025-11-06 Andrea Cremaschi , Manuele Leonelli , Gherardo Varando

Classification of datasets into two or more distinct classes is an important machine learning task. Many methods are able to classify binary classification tasks with a very high accuracy on test data, but cannot provide any easily…

机器学习 · 计算机科学 2020-08-26 Yashesh Dhebar , Sparsh Gupta , Kalyanmoy Deb

We present a novel prior for tree topology within Bayesian Additive Regression Trees (BART) models. This approach quantifies the hypothetical loss in information and the loss due to complexity associated with choosing the wrong tree…

统计方法学 · 统计学 2024-12-30 F. Serafini , F. Leisen , C. Villa , K. Wilson

We introduce a Bayesian multiple regression tree model to characterize relationships between physico-chemical properties of nanoparticles and their in-vitro toxicity over multiple doses and times of exposure. Unlike conventional models that…