Automated Configuration of Offline/Online Algorithms: an Empirical Model Learning Approach

Minerva, Michela (2021) Automated Configuration of Offline/Online Algorithms: an Empirical Model Learning Approach. [Laurea magistrale], Università di Bologna, Corso di Studio in Ingegneria informatica [LM-DM270]
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The energy management system is the intelligent core of a virtual power plant and it manages power flows among units in the grid. This implies dealing with optimization under uncertainty because entities such as loads and renewable energy resources have stochastic behaviors. A hybrid offline/online optimization technique can be applied in such problems to ensure efficient online computation. This work devises an approach that integrates machine learning and optimization models to perform automatic algorithm configuration. It is inserted as the top component in a two-level hierarchical optimization system for the VPP, with the goal of configuring the low-level offline/online optimizer. Data from the low-level algorithm is used for training machine learning models - decision trees and neural networks – that capture the highly complex behavior of both the controlled VPP and the offline/online optimizer. Then, Empirical Model Learning is adopted to build the optimization problem, integrating usual mathematical programming and ML models. The proposed approach successfully combines optimization and machine learning in a data-driven and flexible tool that performs automatic configuration and forecasting of the low-level algorithm for unseen input instances.

Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Minerva, Michela
Relatore della tesi
Correlatore della tesi
Corso di studio
Ordinamento Cds
Parole chiave
Machine Learning,Mathematical Programming,Stochastic Optimization,Offline/Online Optimization,Empirical Model Learning,Automatic Configuration,Virtual Power Plant
Data di discussione della Tesi
11 Marzo 2021

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