6 papers
Robust Unit Commitment in District Heating Networks: Chance-Constrained and CVaR Optimization Under Demand Uncertainty
Annika Buchholz, Janina Zittel, Thorsten Koch
While district heating networks are a key component of the energy transition, their operational planning is challenging due to substantial uncertainty in heat demand. We address th…
Benchmarking Realistic Synthetic Instances Against a Large-Scale District Heating Network: A Multi-Objective Optimization Study for Berlin
Annika Buchholz, Stephanie Riedmüller, Matthew Passage +1
Decarbonizing urban energy systems requires optimization approaches capable of handling the operational complexity of large-scale district heating networks. However, existing studi…
Reconnecting Fragmented Citation Networks with Semantic Augmentation
Vu Thi Huong, Annika Buchholz, Imene Khebouri +5
Citation graphs are fundamental tools for modeling scientific structure, but are often fragmented due to missing citations of scientifically connected articles. To address this iss…
Computational acceleration strategies for large-scale energy system optimization: a comparative study of GPU-accelerated and distributed-memory solvers
Janina Zittel, Annika Buchholz, Michael Bussieck +5
Energy system optimization models are increasing in scope and resolution, yielding large and challenging linear programs. For a long time, the standard way to address such problems…
Mapping the Web of Science, a large-scale graph and text-based dataset with LLM embeddings
Tim Kunt, Annika Buchholz, Imene Khebouri +3
Large text data sets, such as publications, websites, and other text-based media, inherit two distinct types of features: (1) the text itself, its information conveyed through sema…
Enhancing Multi-Energy Modeling: The Role of Mixed-Integer Optimization Decisions
Stephanie Riedmüller, Annika Buchholz, Janina Zittel
The goal to decarbonize the energy sector has led to increased research in modeling and optimizing multi-energy systems. One of the most promising techniques for modeling (multi-)e…