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@inproceedings{dalena:ipac2021-thpab201, author = {B. Dalena and M. Ben Ghali}, title = {{A Machine Learning Technique for Dynamic Aperture Computation}}, booktitle = {Proc. IPAC'21}, pages = {4172--4175}, eid = {THPAB201}, language = {english}, keywords = {network, dynamic-aperture, simulation, hadron, distributed}, venue = {Campinas, SP, Brazil}, series = {International Particle Accelerator Conference}, number = {12}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {08}, year = {2021}, issn = {2673-5490}, isbn = {978-3-95450-214-1}, doi = {10.18429/JACoW-IPAC2021-THPAB201}, url = {https://jacow.org/ipac2021/papers/thpab201.pdf}, note = {https://doi.org/10.18429/JACoW-IPAC2021-THPAB201}, abstract = {{Currently, dynamic aperture calculations of high-energy hadron colliders are performed through computer simulations, which are both a resource-heavy and time-costly processes. The aim of this study is to use a reservoir computing machine learning model in order to achieve a faster extrapolation of dynamic aperture values. A recurrent echo-state network (ESN) architecture is used as a basis for this work. Recurrent networks are better fitted to extrapolation tasks while the reservoir echo-state structure is computationally effective. Model training and validation is conducted on a set of "seeds" corresponding to the simulation results of different machine configurations. Adjustments in the model architecture, manual metric and data selection, hyper-parameters tuning and the introduction of new parameters enabled the model to reliably achieve good performance on examining testing sets.}}, }