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Probabilistic Graphical Models are often used to understand dynamics of a system. They can model relationships between features (nodes) and the underlying distribution. Theoretically these models can represent very complex dependency…

机器学习 · 计算机科学 2023-08-21 Harsh Shrivastava , Urszula Chajewska

Gaussian graphical models (GGM) have been widely used in many high-dimensional applications ranging from biological and financial data to recommender systems. Sparsity in GGM plays a central role both statistically and computationally.…

机器学习 · 统计学 2014-06-12 Zhaoshi Meng , Brian Eriksson , Alfred O. Hero

Most environmental phenomena, such as wind profiles, ozone concentration and sunlight distribution under a forest canopy, exhibit nonstationary dynamics i.e. phenomenon variation change depending on the location and time of occurrence.…

机器学习 · 计算机科学 2018-04-30 Sahil Garg , Amarjeet Singh , Fabio Ramos

Being able to understand visual scenes is a precursor for many downstream tasks, including autonomous driving, robotics, and other vision-based approaches. A common approach enabling the ability to reason over visual data is Scene Graph…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Ce Zhang , Simon Stepputtis , Joseph Campbell , Katia Sycara , Yaqi Xie

Supervised Machine Learning (SML) algorithms such as Gradient Boosting, Random Forest, and Neural Networks have become popular in recent years due to their increased predictive performance over traditional statistical methods. This is…

机器学习 · 统计学 2018-06-05 Linwei Hu , Jie Chen , Vijayan N. Nair , Agus Sudjianto

Probabilistic dependency graphs (PDGs) are a flexible class of probabilistic graphical models, subsuming Bayesian Networks and Factor Graphs. They can also capture inconsistent beliefs, and provide a way of measuring the degree of this…

数据结构与算法 · 计算机科学 2023-11-10 Oliver E. Richardson , Joseph Y. Halpern , Christopher De Sa

Extreme environmental events frequently exhibit spatial and temporal dependence. These data are often modeled using max stable processes (MSPs). MSPs are computationally prohibitive to fit for as few as a dozen observations, with supposed…

统计方法学 · 统计学 2022-05-02 Emily C. Hector , Brian J. Reich

Machine learning models are exceptionally effective in capturing complex non-linear relationships of high-dimensional datasets and making accurate predictions. However, their intrinsic ``black-box'' nature makes it difficult to interpret…

等离子体物理 · 物理学 2024-07-29 Tadas Pyragius , Cary Colgan , Hazel Lowe , Filip Janky , Matteo Fontana , Yichen Cai , Graham Naylor

We establish a scalable manifold learning method and theory, motivated by the problem of estimating fMRI activation manifolds in the Human Connectome Project (HCP). Our primary contribution is the development of an efficient estimation…

统计方法学 · 统计学 2025-09-16 Junhui He , Guoxuan Ma , Jian Kang , Ying Yang

Sea surface temperature (SST) is uniquely important to the Earth's atmosphere since its dynamics are a major force in shaping local and global climate and profoundly affect our ecosystems. Accurate forecasting of SST brings significant…

机器学习 · 计算机科学 2023-04-20 Xiaohan Li , Gaowei Zhang , Kai Huang , Zhaofeng He

Gaussian processes (GPs) are powerful probabilistic models that define flexible priors over functions, offering strong interpretability and uncertainty quantification. However, GP models often rely on simple, stationary kernels which can…

机器学习 · 计算机科学 2025-05-20 Nima Negarandeh , Carlos Mora , Ramin Bostanabad

Adaptive learning is necessary for non-stationary environments where the learning machine needs to forget past data distribution. Efficient algorithms require a compact model update to not grow in computational burden with the incoming data…

机器学习 · 计算机科学 2023-07-11 Vanessa Gómez-Verdejo , Emilio Parrado-Hernández , Manel Martínez-Ramón

Data analysis of gravitational waves detected by the Ligo-Virgo-Kagra collaboration and future observatories relies on precise modelling of the sources. In order to build, calibrate and validate current models, we resort to expensive…

广义相对论与量子宇宙学 · 物理学 2024-02-22 Tomas Andrade , Rossella Gamba , Juan Trenado

To understand changes in physical systems and facilitate decisions, explaining how model predictions are made is crucial. We use model-based interpretability, where models of physical systems are constructed by composing basic constructs…

人工智能 · 计算机科学 2020-03-24 Ion Matei , Johan de Kleer , Christoforos Somarakis , Rahul Rai , John S. Baras

Gaussian process regression (GPR) is a fundamental model used in machine learning. Owing to its accurate prediction with uncertainty and versatility in handling various data structures via kernels, GPR has been successfully used in various…

机器学习 · 计算机科学 2021-12-16 Yuya Yoshikawa , Tomoharu Iwata

Segmented models are widely used to describe non-stationary sequential data with discrete change points. Their estimation usually requires solving a mixed discrete-continuous optimization problem, where the segmentation is the discrete part…

机器学习 · 计算机科学 2021-01-19 Erik Scharwächter , Jonathan Lennartz , Emmanuel Müller

Multi-channel imaging data is a prevalent data format in scientific fields such as astronomy and biology. The structured information and the high dimensionality of these 3-D tensor data makes the analysis an intriguing but challenging topic…

统计方法学 · 统计学 2023-08-15 Hu Sun , Ward Manchester , Meng Jin , Yang Liu , Yang Chen

Accurate predictions and representations of plant growth patterns in simulated and controlled environments are important for addressing various challenges in plant phenomics research. This review explores various works on state-of-the-art…

定量方法 · 定量生物学 2025-07-17 Mohamed Debbagh , Shangpeng Sun , Mark Lefsrud

Despite the advancements in 3D full-shape generation, accurately modeling complex geometries and semantics of shape parts remains a significant challenge, particularly for shapes with varying numbers of parts. Current methods struggle to…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Lei Cheng , Mahdi Saleh , Qing Cheng , Lu Sang , Hongli Xu , Daniel Cremers , Federico Tombari

Spatiotemporal predictive learning (ST-PL) is a hotspot with numerous applications, such as object movement and meteorological prediction. It aims at predicting the subsequent frames via observed sequences. However, inherent uncertainty…

计算机视觉与模式识别 · 计算机科学 2022-04-13 Zenghao Chai , Zhengzhuo Xu , Yunpeng Bai , Zhihui Lin , Chun Yuan