Search Results for author: Nikolaus Kriegeskorte

Found 28 papers, 7 papers with code

Semantic Data Set Construction from Human Clustering and Spatial Arrangement

no code implementations CL (ACL) 2021 Olga Majewska, Diana McCarthy, Jasper J. F. van den Bosch, Nikolaus Kriegeskorte, Ivan Vulić, Anna Korhonen

We demonstrate how the resultant data set can be used for fine-grained analyses and evaluation of representation learning models on the intrinsic tasks of semantic clustering and semantic similarity.

Clustering Representation Learning +3

How does the primate brain combine generative and discriminative computations in vision?

no code implementations11 Jan 2024 Benjamin Peters, James J. DiCarlo, Todd Gureckis, Ralf Haefner, Leyla Isik, Joshua Tenenbaum, Talia Konkle, Thomas Naselaris, Kimberly Stachenfeld, Zenna Tavares, Doris Tsao, Ilker Yildirim, Nikolaus Kriegeskorte

The alternative conception is that of vision as an inference process in Helmholtz's sense, where the sensory evidence is evaluated in the context of a generative model of the causal processes giving rise to it.

The Topology and Geometry of Neural Representations

1 code implementation20 Sep 2023 Baihan Lin, Nikolaus Kriegeskorte

In the simulations, the ground truth is a data-generating layer representation in a neural network model and the models are the same and other layers in different model instances (trained from different random seeds).

Model Selection Specificity

Affinity-based Attention in Self-supervised Transformers Predicts Dynamics of Object Grouping in Humans

1 code implementation1 Jun 2023 Hossein Adeli, Seoyoung Ahn, Nikolaus Kriegeskorte, Gregory Zelinsky

We found that our models of affinity spread that were built on feature maps from the self-supervised Transformers showed significant improvement over baseline and CNN based models on predicting reaction time patterns of humans, despite not being trained on the task or with any other object labels.

Object Representation Learning

The neuroconnectionist research programme

no code implementations8 Sep 2022 Adrien Doerig, Rowan Sommers, Katja Seeliger, Blake Richards, Jenann Ismael, Grace Lindsay, Konrad Kording, Talia Konkle, Marcel A. J. van Gerven, Nikolaus Kriegeskorte, Tim C. Kietzmann

Artificial Neural Networks (ANNs) inspired by biology are beginning to be widely used to model behavioral and neural data, an approach we call neuroconnectionism.

Philosophy

Inferring exemplar discriminability in brain representations

no code implementations13 May 2022 Hamed Nili, Alexander Walther, Arjen Alink, Nikolaus Kriegeskorte

The tests include previously used and novel, parametric and nonparametric tests, which treat subject as a random or fixed effect, and are based on different dissimilarity measures, different test statistics, and different inference procedures.

Specificity valid

Statistical inference on representational geometries

no code implementations16 Dec 2021 Heiko H. Schütt, Alexander D. Kipnis, Jörn Diedrichsen, Nikolaus Kriegeskorte

However, we lack robust methods for connecting theory and experiment by evaluating our new big models with our new big data.

valid

Capturing the objects of vision with neural networks

no code implementations7 Sep 2021 Benjamin Peters, Nikolaus Kriegeskorte

Deep neural network (DNN) models of visual object recognition, by contrast, remain largely tethered to the sensory input, despite achieving human-level performance at labeling objects.

Object Object Recognition

Neural tuning and representational geometry

no code implementations20 Apr 2021 Nikolaus Kriegeskorte, Xue-Xin Wei

A central goal of neuroscience is to understand the representations formed by brain activity patterns and their connection to behavior.

An ecologically motivated image dataset for deep learning yields better models of human vision

no code implementations15 Feb 2021 Johannes Mehrer, Courtney J. Spoerer, Emer C. Jones, Nikolaus Kriegeskorte, Tim C. Kietzmann

This dataset comprises images from 1, 000 categories, selected to provide a challenging testbed for automated visual object recognition systems.

Object Recognition

Evidence against implicitly recurrent computations in residual neural networks

no code implementations1 Jan 2021 Samuel Lippl, Benjamin Peters, Nikolaus Kriegeskorte

To test this hypothesis, we manipulate the degree of weight sharing across layers in ResNets using soft gradient coupling.

Controversial stimuli: pitting neural networks against each other as models of human recognition

2 code implementations21 Nov 2019 Tal Golan, Prashant C. Raju, Nikolaus Kriegeskorte

To efficiently compare models' ability to predict human responses, we synthesize controversial stimuli: images for which different models produce distinct responses.

Adversarial Attack

Visualizing Representational Dynamics with Multidimensional Scaling Alignment

no code implementations21 Jun 2019 Baihan Lin, Marieke Mur, Tim Kietzmann, Nikolaus Kriegeskorte

Representational similarity analysis (RSA) has been shown to be an effective framework to characterize brain-activity profiles and deep neural network activations as representational geometry by computing the pairwise distances of the response patterns as a representational dissimilarity matrix (RDM).

Object Categorization

Recurrence is required to capture the representational dynamics of the human visual system

no code implementations14 Mar 2019 Tim C. Kietzmann, Courtney J Spoerer, Lynn Sörensen, Radoslaw M. Cichy, Olaf Hauk, Nikolaus Kriegeskorte

Here, we measure and model the rapid representational dynamics across multiple stages of the human ventral stream using time-resolved brain imaging and deep learning.

Deep Learning for Cognitive Neuroscience

no code implementations4 Mar 2019 Katherine R. Storrs, Nikolaus Kriegeskorte

There are many levels at which cognitive neuroscientists can use deep learning in their work, from inspiring theories to serving as full computational models.

Neural network models and deep learning - a primer for biologists

1 code implementation13 Feb 2019 Nikolaus Kriegeskorte, Tal Golan

Originally inspired by neurobiology, deep neural network models have become a powerful tool of machine learning and artificial intelligence, where they are used to approximate functions and dynamics by learning from examples.

BIG-bench Machine Learning

Adaptive Geo-Topological Independence Criterion

1 code implementation6 Oct 2018 Baihan Lin, Nikolaus Kriegeskorte

We show that these criteria, like the distance correlation and RKHS-based criteria, provide dependence indicators.

Cognitive computational neuroscience

1 code implementation31 Jul 2018 Nikolaus Kriegeskorte, Pamela K. Douglas

To learn how cognition is implemented in the brain, we must build computational models that can perform cognitive tasks, and test such models with brain and behavioral experiments.

Neurons and Cognition

Building machines that adapt and compute like brains

no code implementations11 Nov 2017 Nikolaus Kriegeskorte, Robert M. Mok

Building machines that learn and think like humans is essential not only for cognitive science, but also for computational neuroscience, whose ultimate goal is to understand how cognition is implemented in biological brains.

Robustly representing uncertainty in deep neural networks through sampling

no code implementations5 Nov 2016 Patrick McClure, Nikolaus Kriegeskorte

We tested the calibration of the probabilistic predictions of Bayesian convolutional neural networks (CNNs) on MNIST and CIFAR-10.

Variational Inference

Representational Distance Learning for Deep Neural Networks

no code implementations12 Nov 2015 Patrick McClure, Nikolaus Kriegeskorte

We propose representational distance learning (RDL), a stochastic gradient descent method that drives the RDMs of the student to approximate the RDMs of the teacher.

Transfer Learning

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