no code implementations • 8 Feb 2023 • Ya Song, Laurens Bliek, Yingqian Zhang
In this paper, we revisit the algorithm selection problem for TSP, and propose a novel Graph Neural Network (GNN), called GINES.
no code implementations • 1 Feb 2023 • Abdo Abouelrous, Laurens Bliek, Yingqian Zhang
In this paper, we seek to provide a framework by which DTs could be easily adapted to urban logistics networks.
no code implementations • 1 Nov 2022 • Remco Coppens, Robbert Reijnen, Yingqian Zhang, Laurens Bliek, Berend Steenhuisen
The DRL policy is trained to adaptively set the values that dictate the intensity and probability of mutation for solutions during optimization.
no code implementations • 20 May 2022 • Stefano Teso, Laurens Bliek, Andrea Borghesi, Michele Lombardi, Neil Yorke-Smith, Tias Guns, Andrea Passerini
The challenge is to learn them from available data, while taking into account a set of hard constraints that a solution must satisfy, and that solving the optimisation problem (esp.
1 code implementation • 25 Jan 2022 • Laurens Bliek, Paulo da Costa, Reza Refaei Afshar, Yingqian Zhang, Tom Catshoek, Daniël Vos, Sicco Verwer, Fynn Schmitt-Ulms, André Hottung, Tapan Shah, Meinolf Sellmann, Kevin Tierney, Carl Perreault-Lafleur, Caroline Leboeuf, Federico Bobbio, Justine Pepin, Warley Almeida Silva, Ricardo Gama, Hugo L. Fernandes, Martin Zaefferer, Manuel López-Ibáñez, Ekhine Irurozki
Overall, by organizing this competition we have introduced routing problems as an interesting problem setting for AI researchers.
1 code implementation • 8 Jun 2021 • Laurens Bliek, Arthur Guijt, Rickard Karlsson, Sicco Verwer, Mathijs de Weerdt
Surrogate algorithms such as Bayesian optimisation are especially designed for black-box optimisation problems with expensive objectives, such as hyperparameter tuning or simulation-based optimisation.
no code implementations • 6 Nov 2020 • Rickard Karlsson, Laurens Bliek, Sicco Verwer, Mathijs de Weerdt
One method to solve expensive black-box optimization problems is to use a surrogate model that approximates the objective based on previous observed evaluations.
1 code implementation • 8 Jun 2020 • Laurens Bliek, Arthur Guijt, Sicco Verwer, Mathijs de Weerdt
A challenging problem in both engineering and computer science is that of minimising a function for which we have no mathematical formulation available, that is expensive to evaluate, and that contains continuous and integer variables, for example in automatic algorithm configuration.
1 code implementation • 20 Nov 2019 • Laurens Bliek, Sicco Verwer, Mathijs de Weerdt
When a black-box optimization objective can only be evaluated with costly or noisy measurements, most standard optimization algorithms are unsuited to find the optimal solution.
1 code implementation • 31 Mar 2016 • Laurens Bliek, Hans R. G. W. Verstraete, Michel Verhaegen, Sander Wahls
This paper analyzes DONE, an online optimization algorithm that iteratively minimizes an unknown function based on costly and noisy measurements.
no code implementations • 19 Sep 2013 • Laurens Bliek
This paper discusses various techniques to let an agent learn how to predict the effects of its own actions on its sensor data autonomously, and their usefulness to apply them to visual sensors.
no code implementations • 29 Aug 2013 • Laurens Bliek
This paper proposes a specific type of Local Linear Model, the Shuffled Linear Model (SLM), that can be used as a universal approximator.