Search Results for author: Jan Melchior

Found 4 papers, 2 papers with code

A Hippocampus Model for Online One-Shot Storage of Pattern Sequences

no code implementations30 May 2019 Jan Melchior, Mehdi Bayati, Amir Azizi, Sen Cheng, Laurenz Wiskott

To our knowledge this is the first model of the hippocampus that allows to store correlated pattern sequences online in a one-shot fashion without a consolidation process, which can instantaneously be recalled later.

Hippocampus One-Shot Learning

Hebbian-Descent

no code implementations25 May 2019 Jan Melchior, Laurenz Wiskott

Hebbian-descent addresses these problems by getting rid of the activation function's derivative and by centering, i. e. keeping the neural activities mean free, leading to a biologically plausible update rule that is provably convergent, does not suffer from the vanishing error term problem, can deal with correlated data, profits from seeing patterns several times, and enables successful online learning when centering is used.

Contrastive Learning

Gaussian-binary Restricted Boltzmann Machines on Modeling Natural Image Statistics

1 code implementation23 Jan 2014 Nan Wang, Jan Melchior, Laurenz Wiskott

We present a theoretical analysis of Gaussian-binary restricted Boltzmann machines (GRBMs) from the perspective of density models.

blind source separation

How to Center Binary Deep Boltzmann Machines

1 code implementation6 Nov 2013 Jan Melchior, Asja Fischer, Laurenz Wiskott

This work analyzes centered binary Restricted Boltzmann Machines (RBMs) and binary Deep Boltzmann Machines (DBMs), where centering is done by subtracting offset values from visible and hidden variables.

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