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Multidimensional Scaling (MDS) is a classical technique for embedding data in low dimensions, still in widespread use today. Originally introduced in the 1950's, MDS was not designed with high-dimensional data in mind; while it remains…

统计理论 · 数学 2018-02-01 Erez Peterfreund , Matan Gavish

A significant challenge to make learning techniques more suitable for general purpose use is to move beyond i) complete supervision, ii) low dimensional data, iii) a single task and single view per instance. Solving these challenges allows…

机器学习 · 计算机科学 2012-02-07 Buyue Qian , Xiang Wang , Ian Davidson

The software program BAMM has been widely used to study the dynamics of speciation, extinction, and phenotypic evolution on phylogenetic trees. The program implements a model-based clustering algorithm to identify clades that share common…

定量方法 · 定量生物学 2017-11-10 Daniel L Rabosky

It has been postulated and observed in practice that for prediction problems in which covariate data can be naturally partitioned into clusters, ensembling algorithms based on suitably aggregating models trained on individual clusters often…

统计理论 · 数学 2021-06-07 Maya Ramchandran , Rajarshi Mukherjee

Cross-domain few-shot learning (CDFSL) aims to acquire knowledge from limited training data in the target domain by leveraging prior knowledge transferred from source domains with abundant training samples. CDFSL faces challenges in…

计算机视觉与模式识别 · 计算机科学 2024-04-22 Yixiong Zou , Yicong Liu , Yiman Hu , Yuhua Li , Ruixuan Li

Beyond the immediate biophysical benefits, urban trees play a foundational role in environmental sustainability and disaster mitigation. Precise mapping of urban trees is essential for environmental monitoring, post-disaster assessment, and…

计算机视觉与模式识别 · 计算机科学 2026-04-07 In Seon Kim , Ali Moghimi

Wood increment is critical information in forestry management. Previous studies used mathematics models to describe complex growing pattern of forest stand, in order to determine the dynamic status of growing forest stand in multiple…

计算工程、金融与科学 · 计算机科学 2014-05-21 Xiaohui Huang , Xing Hu , Weichang Jiang , Zhi Yang , Hao Li

Linear mixed models (LMM) are widely adopted in genome-wide association studies (GWAS) to account for population stratification and cryptic relatedness. However, the parameter estimation of LMMs imposes substantial computational burdens due…

统计计算 · 统计学 2025-08-08 Zhibin Pu , Shufei Ge , Shijia Wang

We present convincing empirical evidence for an effective and general strategy for building accurate small models. Such models are attractive for interpretability and also find use in resource-constrained environments. The strategy is to…

机器学习 · 计算机科学 2024-04-30 Abhishek Ghose

Random forests construct each tree with a different, randomised representation of the feature space. Their uniform voting cannot correct errors in regions where trees with incorrect representations probabilistically outnumber correct ones,…

机器学习 · 计算机科学 2026-05-28 Youngjoon Park

Random forests and, more generally, (decision\nobreakdash-)tree ensembles are widely used methods for classification and regression. Recent algorithmic advances allow to compute decision trees that are optimal for various measures such as…

机器学习 · 计算机科学 2024-09-25 Christian Komusiewicz , Pascal Kunz , Frank Sommer , Manuel Sorge

We present a new technique for visualizing high-dimensional data called cluster MDS (cl-MDS), which addresses a common difficulty of dimensionality reduction methods: preserving both local and global structures of the original sample in a…

图形学 · 计算机科学 2024-05-27 Patricia Hernández-León , Miguel A. Caro

Latent structure methods, specifically linear continuous latent structure methods, are a type of fundamental statistical learning strategy. They are widely used for dimension reduction, regression and prediction, in the fields of…

统计方法学 · 统计学 2025-08-07 Clara Grazian , Qian Jin , Pierre Lafaye De Micheaux

We propose a new mass-mapping algorithm, specifically designed to recover small-scale information from a combination of gravitational shear and flexion. Including flexion allows us to supplement the shear on small scales in order to…

宇宙学与河外天体物理 · 物理学 2016-06-08 Francois Lanusse , Jean-Luc Starck , Adrienne Leonard , Sandrine Pires

The task of building footprint segmentation has been well-studied in the context of remote sensing (RS) as it provides valuable information in many aspects, however, difficulties brought by the nature of RS images such as variations in the…

计算机视觉与模式识别 · 计算机科学 2022-12-06 Burak Ekim , Elif Sertel

In federated learning (FL), weighted aggregation of local models is conducted to generate a global model, and the aggregation weights are normalized (the sum of weights is 1) and proportional to the local data sizes. In this paper, we…

机器学习 · 计算机科学 2023-06-13 Zexi Li , Tao Lin , Xinyi Shang , Chao Wu

In this paper we introduce and study three new measures for efficient discriminative comparison of phylogenetic trees. The NNI navigation dissimilarity $d_{nav}$ counts the steps along a "combing" of the Nearest Neighbor Interchange (NNI)…

种群与进化 · 定量生物学 2015-10-21 Omur Arslan , Dan P. Guralnik , Daniel E. Koditschek

A multilabeled tree (or MUL-tree) is a rooted tree in which every leaf is labelled by an element from some set, but in which more than one leaf may be labelled by the same element of that set. In phylogenetics, such trees are used in…

种群与进化 · 定量生物学 2018-03-16 Manuel Lafond , Nadia El-Mabrouk , Katharina T. Huber , Vincent Moulton

The \emph{maximum a posteriori} (MAP) assignment for general structure Markov random fields (MRFs) is computationally intractable. In this paper, we exploit tree-based methods to efficiently address this problem. Our novel method, named…

人工智能 · 计算机科学 2014-07-23 Truyen Tran , Dinh Phung , Svetha Venkatesh

We present a novel adaptive random subspace learning algorithm (RSSL) for prediction purpose. This new framework is flexible where it can be adapted with any learning technique. In this paper, we tested the algorithm for regression and…

机器学习 · 计算机科学 2015-02-10 Mohamed Elshrif , Ernest Fokoue