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Costas Papadimitriou

Researcher at University of Thessaly

Publications -  249
Citations -  6799

Costas Papadimitriou is an academic researcher from University of Thessaly. The author has contributed to research in topics: Bayesian inference & Uncertainty quantification. The author has an hindex of 37, co-authored 220 publications receiving 5417 citations. Previous affiliations of Costas Papadimitriou include Hong Kong University of Science and Technology & California Institute of Technology.

Papers
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Optimal sensor placement methodology for parametric identification of structural systems

TL;DR: The theoretical and computational issues arising in the selection of the optimal sensor configuration for parameter estimation in structural dynamics are addressed and two algorithms are proposed for constructing effective sensor configurations that are superior in terms of computational efficiency and accuracy to the sensor configurations provided by genetic algorithms.
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A dual Kalman filter approach for state estimation via output-only acceleration measurements

TL;DR: In this article, a dual implementation of the Kalman filter for estimating the unknown input and states of a linear state-space model by using sparse noisy acceleration measurements is proposed, which avoids numerical issues attributed to unobservability and rank deficiency of the augmented formulation of the problem.
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Entropy-Based Optimal Sensor Location for Structural Model Updating

TL;DR: The proposed entropy-based measure of uncertainty is well-suited for making quantitative evaluations and comparisons of the quality of the parameter estimates that can be achieved using sensor configurations with different numbers of sensors in each configuration.
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Updating robust reliability using structural test data

TL;DR: In this article, the concept of robust reliability is defined to take into account uncertainties from structural modeling in addition to the uncertain excitement that a structure will experience during its lifetime, and a Bayesian probabilistic methodology for system identification is integrated for updating the assessment of the robust reliability based on dynamic test data.
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Asymptotic Expansions for Reliability and Moments of Uncertain Systems

TL;DR: In this paper, an asymptotic approximation for evaluating the probability integrals that arise in the determination of the reliability and response moments of uncertain dynamic systems subject to stochastic excitation is developed.