Search Results for author: Bert de Vries

Found 12 papers, 6 papers with code

A Probabilistic Modeling Approach to Hearing Loss Compensation

no code implementations3 Feb 2016 Thijs van de Laar, Bert de Vries

Hearing Aid (HA) algorithms need to be tuned ("fitted") to match the impairment of each specific patient.

A Factor Graph Approach to Automated Design of Bayesian Signal Processing Algorithms

1 code implementation8 Nov 2018 Marco Cox, Thijs van de Laar, Bert de Vries

This paper explores a specific probabilistic programming paradigm, namely message passing in Forney-style factor graphs (FFGs), in the context of automated design of efficient Bayesian signal processing algorithms.

Probabilistic Programming Variational Inference

Bayesian joint state and parameter tracking in autoregressive models

no code implementations L4DC 2020 Ismail Senoz, Albert Podusenko, Wouter M. Kouw, Bert de Vries

We address the problem of online Bayesian state and parameter tracking in autoregressive (AR) models with time-varying process noise variance.

On Preference Learning Based on Sequential Bayesian Optimization with Pairwise Comparison

no code implementations24 Mar 2021 Tanya Ignatenko, Kirill Kondrashov, Marco Cox, Bert de Vries

To efficiently learn the preferences and reduce search space quickly, we propose the agent that interacts with the user to collect the most informative data for learning.

Bayesian Optimization

Active Inference and Epistemic Value in Graphical Models

no code implementations1 Sep 2021 Thijs van de Laar, Magnus Koudahl, Bart van Erp, Bert de Vries

The AIF literature describes multiple VFE objectives for policy planning that lead to epistemic (information-seeking) behavior.

Reactive Message Passing for Scalable Bayesian Inference

1 code implementation25 Dec 2021 Dmitry Bagaev, Bert de Vries

We introduce Reactive Message Passing (RMP) as a framework for executing schedule-free, robust and scalable message passing-based inference in a factor graph representation of a probabilistic model.

Bayesian Inference

AIDA: An Active Inference-based Design Agent for Audio Processing Algorithms

1 code implementation26 Dec 2021 Albert Podusenko, Bart van Erp, Magnus Koudahl, Bert de Vries

AIDA interprets searching for the "most interesting alternative" as an issue of optimal (acoustic) context-aware Bayesian trial design.

Principled Pruning of Bayesian Neural Networks through Variational Free Energy Minimization

1 code implementation17 Oct 2022 Jim Beckers, Bart van Erp, Ziyue Zhao, Kirill Kondrashov, Bert de Vries

Bayesian model reduction provides an efficient approach for comparing the performance of all nested sub-models of a model, without re-evaluating any of these sub-models.

Realising Synthetic Active Inference Agents, Part II: Variational Message Updates

1 code implementation5 Jun 2023 Thijs van de Laar, Magnus Koudahl, Bert de Vries

The Free Energy Principle (FEP) describes (biological) agents as minimising a variational Free Energy (FE) with respect to a generative model of their environment.

Automating Model Comparison in Factor Graphs

1 code implementation9 Jun 2023 Bart van Erp, Wouter W. L. Nuijten, Thijs van de Laar, Bert de Vries

Bayesian state and parameter estimation have been automated effectively in a variety of probabilistic programming languages.

Probabilistic Programming

Realising Synthetic Active Inference Agents, Part I: Epistemic Objectives and Graphical Specification Language

no code implementations13 Jun 2023 Magnus Koudahl, Thijs van de Laar, Bert de Vries

Active Inference (AIF) is a corollary of the FEP that specifically details how systems that are able to plan for the future (agents) function by minimising particular free energy functionals that incorporate information seeking components.

Variational Inference

Toward Design of Synthetic Active Inference Agents by Mere Mortals

no code implementations26 Jul 2023 Bert de Vries

The theoretical properties of active inference agents are impressive, but how do we realize effective agents in working hardware and software on edge devices?

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