Search Results for author: Umut Güçlü

Found 22 papers, 6 papers with code

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

Explainable 3D Convolutional Neural Networks by Learning Temporal Transformations

no code implementations29 Jun 2020 Gabriëlle Ras, Luca Ambrogioni, Pim Haselager, Marcel A. J. van Gerven, Umut Güçlü

Finally, we implicitly demonstrate that, in popular ConvNets, the 2DConv can be replaced with a 3TConv and that the weights can be transferred to yield pretrained 3TConvs.

Image Classification

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.

Background Hardly Matters: Understanding Personality Attribution in Deep Residual Networks

no code implementations20 Dec 2019 Gabriëlle Ras, Ron Dotsch, Luca Ambrogioni, Umut Güçlü, Marcel A. J. van Gerven

It is important that we understand the driving factors behind the predictions, in humans and in deep neural networks.

Temporal Factorization of 3D Convolutional Kernels

no code implementations9 Dec 2019 Gabriëlle Ras, Luca Ambrogioni, Umut Güçlü, Marcel A. J. van Gerven

3D convolutional neural networks are difficult to train because they are parameter-expensive and data-hungry.

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.

Wasserstein Variational Inference

no code implementations NeurIPS 2018 Luca Ambrogioni, Umut Güçlü, Yağmur Güçlütürk, Max Hinne, Eric Maris, Marcel A. J. van Gerven

This paper introduces Wasserstein variational inference, a new form of approximate Bayesian inference based on optimal transport theory.

Bayesian Inference Variational Inference

Reconstructing perceived faces from brain activations with deep adversarial neural decoding

no code implementations NeurIPS 2017 Yağmur Güçlütürk, Umut Güçlü, Katja Seeliger, Sander Bosch, Rob Van Lier, Marcel A. J. 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.

The Kernel Mixture Network: A Nonparametric Method for Conditional Density Estimation of Continuous Random Variables

1 code implementation19 May 2017 Luca Ambrogioni, Umut Güçlü, Marcel A. J. van Gerven, Eric Maris

In the Bayesian filtering example, we show that the method can be used to filter complex nonlinear and non-Gaussian signals defined on manifolds.

Density Estimation

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.

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.

Convolutional Sketch Inversion

2 code implementations9 Jun 2016 Yağmur Güçlütürk, Umut Güçlü, Rob Van Lier, Marcel A. J. van Gerven

In this paper, we use deep neural networks for inverting face sketches to synthesize photorealistic face images.

Stochastic Optimization

Modeling the dynamics of human brain activity with recurrent neural networks

no code implementations9 Jun 2016 Umut Güçlü, Marcel A. J. van Gerven

Encoding models are used for predicting brain activity in response to sensory stimuli with the objective of elucidating how sensory information is represented in the brain.

Neurons and Cognition

Brains on Beats

1 code implementation NeurIPS 2016 Umut Güçlü, Jordy Thielen, Michael Hanke, Marcel A. J. van Gerven

We developed task-optimized deep neural networks (DNNs) that achieved state-of-the-art performance in different evaluation scenarios for automatic music tagging.

Neurons and Cognition

Deep Neural Networks Reveal a Gradient in the Complexity of Neural Representations across the Brain's Ventral Visual Pathway

no code implementations24 Nov 2014 Umut Güçlü, Marcel A. J. van Gerven

Converging evidence suggests that the mammalian ventral visual pathway encodes increasingly complex stimulus features in downstream areas.

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