Infossm: Interpretable unsupervised learning of nonparametric state-space model for multi-modal dynamics

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dc.contributor.authorPark, Young-Jinko
dc.contributor.authorChoi, Han-Limko
dc.date.accessioned2023-07-28T06:00:20Z-
dc.date.available2023-07-28T06:00:20Z-
dc.date.created2023-07-07-
dc.date.issued2019-01-
dc.identifier.citationAIAA Scitech Forum, 2019-
dc.identifier.urihttp://hdl.handle.net/10203/310942-
dc.description.abstractThe goal of system identification is to learn about underlying physics dynamics behind the time-series data. To model the probabilistic and nonparametric dynamics model, Gaussian process (GP) have been widely used; GP can estimate the uncertainty of prediction and avoid over-fitting. Traditional GPSSMs, however, are based on Gaussian transition model, thus often have difficulty in describing a more complex transition model, e.g. aircraft motions. To resolve the challenge, this paper proposes a framework using multiple GP transition models which is capable of describing multi-modal dynamics. Furthermore, we extend the model to the information-theoretic framework, the so-called InfoSSM, by introducing a mutual information regularizer helping the model to learn interpretable and distinguishable multiple dynamics models. Two illustrative numerical experiments in simple Dubins vehicle and high-fidelity flight simulator are presented to demonstrate the performance and interpretability of the proposed model. Finally, this paper introduces a framework using InfoSSM with Bayesian filtering for air traffic control tracking.-
dc.languageEnglish-
dc.publisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA-
dc.titleInfossm: Interpretable unsupervised learning of nonparametric state-space model for multi-modal dynamics-
dc.typeConference-
dc.identifier.scopusid2-s2.0-85083942870-
dc.type.rimsCONF-
dc.citation.publicationnameAIAA Scitech Forum, 2019-
dc.identifier.conferencecountryUS-
dc.identifier.conferencelocationSan Diego, CA-
dc.identifier.doi10.2514/6.2019-0681-
dc.contributor.localauthorChoi, Han-Lim-
dc.contributor.nonIdAuthorPark, Young-Jin-
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AE-Conference Papers(학술회의논문)
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