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Simultaneous Localization and Mapping (SLAM) is essential for precise surgical interventions and robotic tasks in minimally invasive procedures. While recent advancements in 3D Gaussian Splatting (3DGS) have improved SLAM with high-quality…

计算机视觉与模式识别 · 计算机科学 2025-02-03 Yiming Huang , Beilei Cui , Long Bai , Zhen Chen , Jinlin Wu , Zhen Li , Hongbin Liu , Hongliang Ren

Bayesian Inference offers principled tools to tackle many critical problems with modern neural networks such as poor calibration and generalization, and data inefficiency. However, scaling Bayesian inference to large architectures is…

Multiple generalized additive models (GAMs) are a type of distributional regression wherein parameters of probability distributions depend on predictors through smooth functions, with selection of the degree of smoothness via $L_2$…

机器学习 · 统计学 2018-09-26 Yousra El-Bachir , Anthony C. Davison

Real-world data with underlying structure, such as pictures of faces, are hypothesized to lie on a low-dimensional manifold. This manifold hypothesis has motivated state-of-the-art generative algorithms that learn low-dimensional data…

A normalizing flow models a complex probability density as an invertible transformation of a simple base density. Flows based on either coupling or autoregressive transforms both offer exact density evaluation and sampling, but rely on the…

机器学习 · 统计学 2019-12-03 Conor Durkan , Artur Bekasov , Iain Murray , George Papamakarios

Current endeavours in exoplanet characterisation rely on atmospheric retrieval to quantify crucial physical properties of remote exoplanets from observations. However, the scalability and efficiency of the technique are under strain with…

地球与行星天体物理 · 物理学 2023-11-17 Kai Hou Yip , Quentin Changeat , Ahmed Al-Refaie , Ingo Waldmann

Efficient sampling of complex data distributions can be achieved using trained invertible flows (IF), where the model distribution is generated by pushing a simple base distribution through multiple non-linear bijective transformations.…

机器学习 · 计算机科学 2021-07-13 Daniel O'Connor , Walter Vinci

Systems biology relies on mathematical models that often involve complex and intractable likelihood functions, posing challenges for efficient inference and model selection. Generative models, such as normalizing flows, have shown…

定量方法 · 定量生物学 2023-12-06 Vincent D. Zaballa , Elliot E. Hui

Bayesian hierarchical models can provide efficient algorithms for finding sparse solutions to ill-posed inverse problems. The models typically comprise a conditionally Gaussian prior model for the unknown which is augmented by a generalized…

数值分析 · 数学 2025-01-09 Jonathan Lindbloom , Jan Glaubitz , Anne Gelb

We propose a new variational inference algorithm for learning in Gaussian Process State-Space Models (GPSSMs). Our algorithm enables learning of unstable and partially observable systems, where previous algorithms fail. Our main algorithmic…

机器学习 · 计算机科学 2020-06-11 Silvan Melchior , Sebastian Curi , Felix Berkenkamp , Andreas Krause

Inverse medium scattering solvers generally reconstruct a single solution without an associated measure of uncertainty. This is true both for the classical iterative solvers and for the emerging deep learning methods. But ill-posedness and…

机器学习 · 计算机科学 2022-12-12 AmirEhsan Khorashadizadeh , Ali Aghababaei , Tin Vlašić , Hieu Nguyen , Ivan Dokmanić

Normalizing flows are bijective mappings between inputs and latent representations with a fully factorized distribution. They are very attractive due to exact likelihood valuation and efficient sampling. However, their effective capacity is…

机器学习 · 计算机科学 2021-11-03 Matej Grcić , Ivan Grubišić , Siniša Šegvić

Additive smooth models, such as Generalized additive models (GAMs) of location, scale, and shape (GAMLSS), are a popular choice for modeling experimental data. However, software available to fit such models is usually not tailored…

统计方法学 · 统计学 2025-06-17 Joshua Krause , Jelmer P. Borst , Jacolien van Rij

Simultaneous localization and mapping (SLAM) is the process of constructing a global model of an environment from local observations of it; this is a foundational capability for mobile robots, supporting such core functions as planning,…

机器人学 · 计算机科学 2021-03-10 David M. Rosen , Kevin J. Doherty , Antonio Teran Espinoza , John J. Leonard

Geometry foundation models have significantly advanced dense geometric SLAM, yet existing systems often lack deep semantic understanding and robust loop closure capabilities. Meanwhile, contemporary semantic mapping approaches are…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Tingyang Xiao , Liu Liu , Wei Feng , Zhengyu Zou , Xiaolin Zhou , Wei Sui , Hao Li , Dingwen Zhang , Zhizhong Su

Graph Neural Networks (GNNs) have shown superior performance in node classification. However, GNNs perform poorly in the Few-Shot Node Classification (FSNC) task that requires robust generalization to make accurate predictions for unseen…

机器学习 · 计算机科学 2024-10-23 Yihong Luo , Yuhan Chen , Siya Qiu , Yiwei Wang , Chen Zhang , Yan Zhou , Xiaochun Cao , Jing Tang

The fused lasso penalizes a loss function by the $L_1$ norm for both the regression coefficients and their successive differences to encourage sparsity of both. In this paper, we propose a Bayesian generalized fused lasso modeling based on…

统计方法学 · 统计学 2019-07-15 Kaito Shimamura , Masao Ueki , Shuichi Kawano , Sadanori Konishi

Modeling irregularly-sampled time series (ISTS) is challenging because of missing values. Most existing methods focus on handling ISTS by converting irregularly sampled data into regularly sampled data via imputation. These models assume an…

Proper regularization is crucial in inverse problems to achieve high-quality reconstruction, even with an ill-conditioned measurement system. This is particularly true for three-dimensional photoacoustic tomography, which is computationally…

最优化与控制 · 数学 2024-09-26 Chao Wang , Alexandre H. Thiery

In this work, we introduce FLAME, a family of extremely lightweight and capable Time Series Foundation Models, which support both deterministic and probabilistic forecasting via generative probabilistic modeling, thus ensuring both…

机器学习 · 计算机科学 2026-02-10 Xingjian Wu , Hanyin Cheng , Xiangfei Qiu , Zhengyu Li , Jilin Hu , Chenjuan Guo , Bin Yang