The BrainScaleS-2 accelerated neuromorphic system with hybrid plasticity

C Pehle, S Billaudelle, B Cramer, J Kaiser… - Frontiers in …, 2022 - frontiersin.org
Since the beginning of information processing by electronic components, the nervous
system has served as a metaphor for the organization of computational primitives. Brain …

[HTML][HTML] Event-based backpropagation can compute exact gradients for spiking neural networks

TC Wunderlich, C Pehle - Scientific Reports, 2021 - nature.com
Spiking neural networks combine analog computation with event-based communication
using discrete spikes. While the impressive advances of deep learning are enabled by …

Saltation matrices: The essential tool for linearizing hybrid dynamical systems

NJ Kong, JJ Payne, J Zhu… - Proceedings of the …, 2024 - ieeexplore.ieee.org
Hybrid dynamical systems, ie, systems that have both continuous and discrete states, are
ubiquitous in engineering but are difficult to work with due to their discontinuous transitions …

Introduction to model based optimization of chemical processes on moving horizons

T Binder, L Blank, HG Bock, R Bulirsch… - Online optimization of …, 2001 - Springer
Dynamic optimization problems are typically quite challenging for large-scale applications.
Even more challenging are on-line applications with demanding real-time constraints. This …

Modeling, simulation, sensitivity analysis, and optimization of hybrid systems

PI Barton, CK Lee - ACM Transactions on Modeling and Computer …, 2002 - dl.acm.org
Hybrid (discrete/continuous) systems exhibit both discrete state and continuous state
dynamics which interact to such a significant extent that they cannot be decoupled and must …

Model‐based design of a plant‐wide control strategy for a continuous pharmaceutical plant

R Lakerveld, B Benyahia, RD Braatz, PI Barton - AIChE Journal, 2013 - Wiley Online Library
The design of an effective plant‐wide control strategy is a key challenge for the development
of future continuous pharmaceutical processes. This article presents a case study for the …

A Swee** Gradient Method for Ordinary Differential Equations with Events

BWL Margolis - Journal of Optimization Theory and Applications, 2023 - Springer
In this paper, we use the calculus of variations to derive a sensitivity analysis for ordinary
differential equations with events. This swee** gradient method (SGM) requires a forward …

Efficient recurrent architectures through activity sparsity and sparse back-propagation through time

A Subramoney, KK Nazeer, M Schöne, C Mayr… - arxiv preprint arxiv …, 2022 - arxiv.org
Recurrent neural networks (RNNs) are well suited for solving sequence tasks in resource-
constrained systems due to their expressivity and low computational requirements …

Dynamic optimization in a discontinuous world

PI Barton, RJ Allgor, WF Feehery… - Industrial & engineering …, 1998 - ACS Publications
Many engineering tasks can be formulated as dynamic optimization or open-loop optimal
control problems, where we search a priori for the input profiles to a dynamic system that …

Power system modeling for inverse problems

IA Hiskens - IEEE Transactions on Circuits and Systems I …, 2004 - ieeexplore.ieee.org
Large disturbances in power systems often initiate complex interactions between continuous
dynamics and discrete events. The paper develops a hybrid automaton that describes such …