Results 41 to 50 of about 1,045,298 (140)

Graphical models for mediation analysis

, 2018
Mediation analysis seeks to infer how much of the effect of an exposure on an outcome can be attributed to specific pathways via intermediate variables or mediators. This requires identification of so-called path-specific effects.
Steen, Johan, Vansteelandt, Stijn
core   +1 more source

Efficient extraction of experimental data from line charts using advanced machine learning techniques

Graphical Models
Line charts, as a common data visualization tool in scientific research and business analysis, encapsulate rich experimental data. However, existing data extraction tools face challenges such as low automation levels and difficulties in handling complex ...
Wenjin Yang, Jie He, Xiaotong Zhang
doaj   +1 more source

Loop Calculus for Non-Binary Alphabets using Concepts from Information Geometry [PDF]

, 2014
The Bethe approximation is a well-known approximation of the partition function used in statistical physics. Recently, an equality relating the partition function and its Bethe approximation was obtained for graphical models with binary variables by ...
Mori, Ryuhei
core   +1 more source

High Dimensional Semiparametric Gaussian Copula Graphical Models

, 2012
In this paper, we propose a semiparametric approach, named nonparanormal skeptic, for efficiently and robustly estimating high dimensional undirected graphical models.
Han, Fang, Lafferty, John, Liu, Han, Wasserman, Larry, Yuan, Ming   +4 more
core   +2 more sources

CADTrans: A code tree-guided CAD generative transformer model with regularized discrete codebooks

Graphical Models
The creation of computational agents capable of generating computer-aided design (CAD) models that rival those produced by professional designers is a pressing challenge in the field of computational design.
Xufei Guo, Xiao Dong, Juan Cao, Zhonggui Chen   +3 more
doaj   +1 more source

Improving the area-preserving parameterization of rational Bézier surfaces by rational bilinear transformation

Graphical Models
To improve the area-preserving parameterization quality of rational Bézier surfaces, an optimization algorithm using bilinear reparameterization is proposed.
Xiaowei Li, Yingjie Wu, Yaohui Sun, Xin Chen, Yanru Chen, Yi-jun Yang   +5 more
doaj   +1 more source

DISCO: Efficient Diffusion Solver for large-scale Combinatorial Optimization problems

Graphical Models
Combinatorial Optimization (CO) problems are fundamentally important in numerous real-world applications across diverse industries, notably computer graphics, characterized by entailing enormous solution space and demanding time-sensitive response ...
Hang Zhao, Kexiong Yu, Yuhang Huang, Renjiao Yi, Chenyang Zhu, Kai Xu   +5 more
doaj   +1 more source

Efficient RANSAC in 4D Plane Space for Point Cloud Registration

Graphical Models
3D registration methods based on point-level information struggle in situations with noise, density variation, large-scale points, and small overlaps, while existing primitive-based methods are usually sensitive to tiny errors in the primitive extraction
Chang Liu, Chao Liu, Yuming Zhang, Zhongqi Wu, Jianwei Guo   +4 more
doaj   +1 more source

Visual simulation of fruit chilling injury

Graphical Models
Chilling injury (CI) is a major postharvest physiological disorder in fruits, causing quality degradation and economic losses during low-temperature storage.
Yixin Xu, Shiguang Liu
doaj   +1 more source

Image vectorization using a sparse patch layout

Graphical Models
Mesh-based image vectorization techniques have been studied for a long time, mostly owing to their compactness and flexibility in capturing image features. However, existing methods often lead to relatively dense meshes, especially when applied to images
K. He, J.B.T.M. Roerdink, J. Kosinka
doaj   +1 more source