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5 Results Found

  • Article
  • Open Access
26 Citations
10,561 Views
43 Pages

Variational Message Passing and Local Constraint Manipulation in Factor Graphs

  • İsmail Şenöz,
  • Thijs van de Laar,
  • Dmitry Bagaev and
  • Bert de Vries

24 June 2021

Accurate evaluation of Bayesian model evidence for a given data set is a fundamental problem in model development. Since evidence evaluations are usually intractable, in practice variational free energy (VFE) minimization provides an attractive alter...

(This article belongs to the Special Issue Approximate Bayesian Inference)
  • Article
  • Open Access
2 Citations
1,177 Views
36 Pages

28 October 2025

Massive machine-type communications (mMTC) in future 6G networks will involve a vast number of devices with sporadic traffic. Grant-free access has emerged as an effective strategy to reduce the access latency and processing overhead by allowing devi...

(This article belongs to the Topic Advances in Sixth Generation and Beyond (6G&B))
  • Article
  • Open Access
2,293 Views
20 Pages

GraphPPL.jl: A Probabilistic Programming Language for Graphical Models

  • Wouter W. L. Nuijten,
  • Dmitry Bagaev and
  • Bert de Vries

22 October 2024

This paper presents GraphPPL.jl, a novel probabilistic programming language designed for graphical models. GraphPPL.jl uniquely represents probabilistic models as factor graphs. A notable feature of GraphPPL.jl is its model nesting capability, which...

(This article belongs to the Section Information Theory, Probability and Statistics)
  • Article
  • Open Access
749 Views
29 Pages

3 August 2026

We organize the ultrafast hydrogen-bond timescales and far-infrared/terahertz band centres of liquid water on a single golden-ratio ladder, anchored to the 80 fs H-bond contraction time and indexed by a loop-free tetrahedral Bethe sequence. Both data...

(This article belongs to the Special Issue 30th Anniversary of Molecules—Recent Advances in Physical Chemistry)
  • Article
  • Open Access
23 Citations
6,095 Views
18 Pages

Electron Polarons in Lithium Niobate: Charge Localization, Lattice Deformation, and Optical Response

  • Falko Schmidt,
  • Agnieszka L. Kozub,
  • Uwe Gerstmann,
  • Wolf Gero Schmidt and
  • Arno Schindlmayr

13 May 2021

Lithium niobate (LiNbO3), a material frequently used in optical applications, hosts different kinds of polarons that significantly affect many of its physical properties. In this study, a variety of electron polarons, namely free, bound, and bipolaro...

(This article belongs to the Special Issue New Trends in Lithium Niobate: From Bulk to Nanocrystals)