Search Results for author: Thomas Asikis

Found 6 papers, 3 papers with code

Near-optimal control of dynamical systems with neural ordinary differential equations

1 code implementation22 Jun 2022 Lucas Böttcher, Thomas Asikis

Optimal control problems naturally arise in many scientific applications where one wishes to steer a dynamical system from a certain initial state $\mathbf{x}_0$ to a desired target state $\mathbf{x}^*$ in finite time $T$.

Hyperparameter Optimization

Control of Dual-Sourcing Inventory Systems using Recurrent Neural Networks

1 code implementation16 Jan 2022 Lucas Böttcher, Thomas Asikis, Ioannis Fragkos

To solve such optimization problems, inventory managers need to decide what quantities to order from each supplier, given the net inventory and outstanding orders, so that the expected backlogging, holding, and sourcing costs are jointly minimized.


Multi-Objective Optimization for Value-Sensitive and Sustainable Basket Recommendations

no code implementations10 Nov 2021 Thomas Asikis

Sustainable consumption aims to minimize the environmental and societal impact of the use of services and products.

Recommendation Systems

Implicit energy regularization of neural ordinary-differential-equation control

no code implementations11 Mar 2021 Lucas Böttcher, Nino Antulov-Fantulin, Thomas Asikis

Although optimal control problems of dynamical systems can be formulated within the framework of variational calculus, their solution for complex systems is often analytically and computationally intractable.

Neural Ordinary Differential Equation Control of Dynamics on Graphs

1 code implementation17 Jun 2020 Thomas Asikis, Lucas Böttcher, Nino Antulov-Fantulin

We study the ability of neural networks to calculate feedback control signals that steer trajectories of continuous time non-linear dynamical systems on graphs, which we represent with neural ordinary differential equations (neural ODEs).

Reinforcement Learning (RL)

How Value-Sensitive Design Can Empower Sustainable Consumption

no code implementations20 Apr 2020 Thomas Asikis, Johannes Klinglmayr, Dirk Helbing, Evangelos Pournaras

In a so-called overpopulated world, sustainable consumption is of existential importance. However, the expanding spectrum of product choices and their production complexity challenge consumers to make informed and value-sensitive decisions.

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