Search Results for author: Daniela Thyssens

Found 7 papers, 5 papers with code

Moco: A Learnable Meta Optimizer for Combinatorial Optimization

1 code implementation7 Feb 2024 Tim Dernedde, Daniela Thyssens, Sören Dittrich, Maximilian Stubbemann, Lars Schmidt-Thieme

Our approach, Moco, learns a graph neural network that updates the solution construction procedure based on features extracted from the current search state.

Combinatorial Optimization Traveling Salesman Problem

DeepStay: Stay Region Extraction from Location Trajectories using Weak Supervision

1 code implementation5 Jun 2023 Christian Löwens, Daniela Thyssens, Emma Andersson, Christina Jenkins, Lars Schmidt-Thieme

Common approaches to SR extraction are evaluated either solely unsupervised or on a small-scale private dataset, as popular public datasets are unlabeled.

Stay Region Extraction Transportation Mode Detection

Learning to Control Local Search for Combinatorial Optimization

1 code implementation27 Jun 2022 Jonas K. Falkner, Daniela Thyssens, Ahmad Bdeir, Lars Schmidt-Thieme

Combinatorial optimization problems are encountered in many practical contexts such as logistics and production, but exact solutions are particularly difficult to find and usually NP-hard for considerable problem sizes.

Combinatorial Optimization

Large Neighborhood Search based on Neural Construction Heuristics

1 code implementation2 May 2022 Jonas K. Falkner, Daniela Thyssens, Lars Schmidt-Thieme

The neural repair operator is combined with a local search routine, heuristic destruction operators and a selection procedure applied to a small population to arrive at a sophisticated solution approach.

reinforcement-learning Reinforcement Learning (RL)

Supervised Permutation Invariant Networks for Solving the CVRP with Bounded Fleet Size

no code implementations5 Jan 2022 Daniela Thyssens, Jonas Falkner, Lars Schmidt-Thieme

Learning to solve combinatorial optimization problems, such as the vehicle routing problem, offers great computational advantages over classical operations research solvers and heuristics.

Combinatorial Optimization

Do We Really Need Deep Learning Models for Time Series Forecasting?

1 code implementation6 Jan 2021 Shereen Elsayed, Daniela Thyssens, Ahmed Rashed, Hadi Samer Jomaa, Lars Schmidt-Thieme

In this paper, we report the results of prominent deep learning models with respect to a well-known machine learning baseline, a Gradient Boosting Regression Tree (GBRT) model.

regression Time Series +1

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