Search Results for author: Marcel van Gerven

Found 30 papers, 6 papers with code

Analytical Characterization of Epileptic Dynamics in a Bistable System

no code implementations4 Apr 2024 Yuzhen Qin, Ahmed El-Gazzar, Danielle S. Bassett, Fabio Pasqualetti, Marcel van Gerven

In this paper, we employ a bistable model, where a stable equilibrium and a stable limit cycle coexist, to describe epileptic dynamics.

Effective Learning with Node Perturbation in Deep Neural Networks

no code implementations2 Oct 2023 Sander Dalm, Marcel van Gerven, Nasir Ahmad

Backpropagation (BP) is the dominant and most successful method for training parameters of deep neural network models.

Learning Policies for Continuous Control via Transition Models

no code implementations16 Sep 2022 Justus Huebotter, Serge Thill, Marcel van Gerven, Pablo Lanillos

It is doubtful that animals have perfect inverse models of their limbs (e. g., what muscle contraction must be applied to every joint to reach a particular location in space).

Continuous Control Position

How does artificial intelligence contribute to iEEG research?

no code implementations26 Jul 2022 Julia Berezutskaya, Anne-Lise Saive, Karim Jerbi, Marcel van Gerven

Applying advanced AI models to these data carries the potential to further our understanding of many fundamental questions in neuroscience.

Brain Computer Interface

Constrained Parameter Inference as a Principle for Learning

1 code implementation22 Mar 2022 Nasir Ahmad, Ellen Schrader, Marcel van Gerven

Backpropagation of error (BP) is an example of such an approach and has proven to be a highly successful application of stochastic gradient descent to deep neural networks.

Hermitry Ratio: Evaluating the validity of perturbation methods for explainable deep learning

no code implementations29 Sep 2021 Gabrielle Ras, Erdi Çallı, Marcel van Gerven

Perturbation methods are model-agnostic methods used to generate heatmaps to explain black-box algorithms such as deep neural networks.

Explainable Artificial Intelligence (XAI) Image Classification

Gradient-adjusted Incremental Target Propagation Provides Effective Credit Assignment in Deep Neural Networks

no code implementations23 Feb 2021 Sander Dalm, Nasir Ahmad, Luca Ambrogioni, Marcel van Gerven

Many of the recent advances in the field of artificial intelligence have been fueled by the highly successful backpropagation of error (BP) algorithm, which efficiently solves the credit assignment problem in artificial neural networks.

Handwritten Digit Recognition

Automatic variational inference with cascading flows

no code implementations9 Feb 2021 Luca Ambrogioni, Gianluigi Silvestri, Marcel van Gerven

We evaluate the performance of the new variational programs in a series of structured inference problems.

Variational Inference

The 3TConv: An Intrinsic Approach to Explainable 3D CNNs

no code implementations1 Jan 2021 Gabrielle Ras, Luca Ambrogioni, Pim Haselager, Marcel van Gerven, Umut Güçlü

In a 3TConv the 3D convolutional filter is obtained by learning a 2D filter and a set of temporal transformation parameters, resulting in a sparse filter requiring less parameters.

Action Recognition

A deep active inference model of the rubber-hand illusion

1 code implementation17 Aug 2020 Thomas Rood, Marcel van Gerven, Pablo Lanillos

Understanding how perception and action deal with sensorimotor conflicts, such as the rubber-hand illusion (RHI), is essential to understand how the body adapts to uncertain situations.

Explainable Deep Learning: A Field Guide for the Uninitiated

no code implementations30 Apr 2020 Gabrielle Ras, Ning Xie, Marcel van Gerven, Derek Doran

The field guide: i) Introduces three simple dimensions defining the space of foundational methods that contribute to explainable deep learning, ii) discusses the evaluations for model explanations, iii) places explainability in the context of other related deep learning research areas, and iv) finally elaborates on user-oriented explanation designing and potential future directions on explainable deep learning.

Decision Making

Virtual staining for mitosis detection in Breast Histopathology

no code implementations17 Mar 2020 Caner Mercan, Germonda Reijnen-Mooij, David Tellez Martin, Johannes Lotz, Nick Weiss, Marcel van Gerven, Francesco Ciompi

We propose a virtual staining methodology based on Generative Adversarial Networks to map histopathology images of breast cancer tissue from H&E stain to PHH3 and vice versa.

Mitosis Detection

Automatic structured variational inference

2 code implementations3 Feb 2020 Luca Ambrogioni, Kate Lin, Emily Fertig, Sharad Vikram, Max Hinne, Dave Moore, Marcel van Gerven

However, the performance of the variational approach depends on the choice of an appropriate variational family.

Probabilistic Programming Variational Inference

The Indian Chefs Process

no code implementations29 Jan 2020 Patrick Dallaire, Luca Ambrogioni, Ludovic Trottier, Umut Güçlü, Max Hinne, Philippe Giguère, Brahim Chaib-Draa, Marcel van Gerven, Francois Laviolette

This paper introduces the Indian Chefs Process (ICP), a Bayesian nonparametric prior on the joint space of infinite directed acyclic graphs (DAGs) and orders that generalizes Indian Buffet Processes.

End-to-End Pixel-Based Deep Active Inference for Body Perception and Action

1 code implementation28 Dec 2019 Cansu Sancaktar, Marcel van Gerven, Pablo Lanillos

We present a pixel-based deep active inference algorithm (PixelAI) inspired by human body perception and action.

Variational Inference

k-GANs: Ensemble of Generative Models with Semi-Discrete Optimal Transport

no code implementations9 Jul 2019 Luca Ambrogioni, Umut Güçlü, Marcel van Gerven

A possible way of dealing with this problem is to use an ensemble of GANs, where (ideally) each network models a single mode.

The functional role of cue-driven feature-based feedback in object recognition

no code implementations25 Mar 2019 Sushrut Thorat, Marcel van Gerven, Marius Peelen

Visual object recognition is not a trivial task, especially when the objects are degraded or surrounded by clutter or presented briefly.

Object Recognition

Wasserstein variational gradient descent: From semi-discrete optimal transport to ensemble variational inference

no code implementations7 Nov 2018 Luca Ambrogioni, Umut Guclu, Marcel van Gerven

The solution of the resulting optimal transport problem provides both a particle approximation and a set of optimal transportation densities that map each particle to a segment of the posterior distribution.

Variational Inference

Explanation Methods in Deep Learning: Users, Values, Concerns and Challenges

no code implementations20 Mar 2018 Gabrielle Ras, Marcel van Gerven, Pim Haselager

Different kinds of users are identified and their concerns revealed, relevant statements from the General Data Protection Regulation are analyzed in the context of Deep Neural Networks (DNNs), a taxonomy for the classification of existing explanation methods is introduced, and finally, the various classes of explanation methods are analyzed to verify if user concerns are justified.

Deep adversarial neural decoding

1 code implementation19 May 2017 Yağmur Güçlütürk, Umut Güçlü, Katja Seeliger, Sander Bosch, Rob Van Lier, Marcel van Gerven

Here, we present a novel approach to solve the problem of reconstructing perceived stimuli from brain responses by combining probabilistic inference with deep learning.

GP CaKe: Effective brain connectivity with causal kernels

no code implementations NeurIPS 2017 Luca Ambrogioni, Max Hinne, Marcel van Gerven, Eric Maris

Here we propose to model this causal interaction using integro-differential equations and causal kernels that allow for a rich analysis of effective connectivity.

Causal Inference

Estimating Nonlinear Dynamics with the ConvNet Smoother

no code implementations17 Feb 2017 Luca Ambrogioni, Umut Güçlü, Eric Maris, Marcel van Gerven

Estimating the state of a dynamical system from a series of noise-corrupted observations is fundamental in many areas of science and engineering.

Deep disentangled representations for volumetric reconstruction

no code implementations12 Oct 2016 Edward Grant, Pushmeet Kohli, Marcel van Gerven

We introduce a convolutional neural network for inferring a compact disentangled graphical description of objects from 2D images that can be used for volumetric reconstruction.

Predicting and visualizing psychological attributions with a deep neural network

no code implementations4 Dec 2015 Edward Grant, Stephan Sahm, Mariam Zabihi, Marcel van Gerven

Judgments about personality based on facial appearance are strong effectors in social decision making, and are known to have impact on areas from presidential elections to jury decisions.

Decision Making

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