User profiles for R. Legenstein

Robert Legenstein

Institute for Theoretical Computer Science, Graz University of Technology
Verified email at igi.tugraz.at
Cited by 6630

Hallux valgus correction by the method of Bösch: a new technique with a seven-to-ten-year follow-up.

P Bösch, S Wanke, R Legenstein - Foot and ankle clinics, 2000 - europepmc.org
Subcapital osteotomy of the first metatarsal is used as the treatment of choice for the correction
of hallux valgus. The advantages are a short operation time, no soft tissue procedures, …

Integration of nanoscale memristor synapses in neuromorphic computing architectures

G Indiveri, B Linares-Barranco, R Legenstein… - …, 2013 - iopscience.iop.org
Conventional neuro-computing architectures and artificial neural networks have often been
developed with no or loose connections to neuroscience. As a consequence, they have …

Dendritic computing: branching deeper into machine learning

J Acharya, A Basu, R Legenstein, T Limbacher… - Neuroscience, 2022 - Elsevier
In this paper, we discuss the nonlinear computational power provided by dendrites in biological
and artificial neurons. We start by briefly presenting biological evidence about the type of …

Edge of chaos and prediction of computational performance for neural circuit models

R Legenstein, W Maass - Neural networks, 2007 - Elsevier
… If the rank of this matrix M has a value r < m , then this value r can still be viewed as a
measure for the computational performance of this circuit C , since r is the number of “degrees of …

Long short-term memory and learning-to-learn in networks of spiking neurons

…, A Subramoney, R Legenstein… - Advances in neural …, 2018 - proceedings.neurips.cc
… We observe that in the sparse architecture discovered by DEEP R, the connectivity onto the
readout neurons Y is denser than in the rest of the network (see Fig. 1C). Detailed results are …

[HTML][HTML] Unsupervised learning in probabilistic neural networks with multi-state metal-oxide memristive synapses

A Serb, J Bill, A Khiat, R Berdan, R Legenstein… - Nature …, 2016 - nature.com
In an increasingly data-rich world the need for developing computing systems that cannot only
process, but ideally also interpret big data is becoming continuously more pressing. Brain-…

[HTML][HTML] A solution to the learning dilemma for recurrent networks of spiking neurons

…, A Subramoney, E Hajek, D Salaj, R Legenstein… - Nature …, 2020 - nature.com
… This term is multiplied in the synaptic plasticity rule with the reward prediction error δ t = r t
+ γV t+1 − V t , where r t is the reward received at time t. This yields an instantaneous weight …

Combining predictions for accurate recommender systems

M Jahrer, A Töscher, R Legenstein - Proceedings of the 16th ACM …, 2010 - dl.acm.org
… In collaborative filtering, the system infers a model from all available data in R. One … The
blending algorithm is formally a function Ω : RF ↦→ R. The input x is a vector of individual …

[HTML][HTML] A learning theory for reward-modulated spike-timing-dependent plasticity with application to biofeedback

R Legenstein, D Pecevski, W Maass - PLoS computational biology, 2008 - journals.plos.org
… ε r as defined in Equation 29, whereas for we used ε r − = −ε r (note that the integral over ε …
r (r)≥0 for r>0 and ε r (r) = 0 for r<0 (also, f c (r) and ε r (r) must not be identical to zero for all r). …

Deep rewiring: Training very sparse deep networks

G Bellec, D Kappel, W Maass, R Legenstein - arXiv preprint arXiv …, 2017 - arxiv.org
… , DEEP R, that enables us to train directly a sparsely connected neural network. DEEP R
We demonstrate that DEEP R can be used to train very sparse feedforward and recurrent …