Equifinality, sloppiness, and emergent structures of mechanistic soil biogeochemical models

GL Marschmann, H Pagel, P Kügler, T Streck - Environmental Modelling & …, 2019 - Elsevier
Biogeochemical models increasingly consider the microbial control of carbon cycling in soil.
The major current challenge is to validate mechanistic descriptions of microbial processes …

Parameter calibration of wind farm with error tracing technique and correlated parameter identification

P Wang, Z Zhang, T Ma, Q Huang… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
With the increasing penetrations of wind power in power systems, periodical calibration of
the large-scale Wind Farm (WF) model is crucial to maintaining high-quality model …

Symbolic regression for data-driven dynamic model refinement in power systems

AT Sarić, AA Sarić, MK Transtrum… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
This paper describes a data-driven symbolic regression identification method tailored to
power systems and demonstrated on different synchronous generator (SG) models. In this …

[HTML][HTML] Bayesian, frequentist, and information geometric approaches to parametric uncertainty quantification of classical empirical interatomic potentials

Y Kurniawan, CL Petrie, KJ Williams… - The Journal of …, 2022 - pubs.aip.org
In this paper, we consider the problem of quantifying parametric uncertainty in classical
empirical interatomic potentials (IPs) using both Bayesian (Markov Chain Monte Carlo) and …

Data-driven symbolic regression for identification of nonlinear dynamics in power systems

AM Stanković, AA Sarić, AT Sarić… - 2020 IEEE Power & …, 2020 - ieeexplore.ieee.org
The paper describes a data-driven system identification method tailored to power systems
and demonstrated on models of synchronous generators (SGs). In this work, we extend the …

Multistage parameter identification featured generic wind farm dynamic equivalent modeling

P Wang, Z Zhang, C Chen, Q Huang… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
With the high penetration of large-scale wind farms (WFs), accurate grid-connected WF
models are crucial to be developed for studying the stability of power grids. Due to the large …

Simplified Information Geometry Approach for Massive MIMO-OFDM Channel Estimation--Part I: Algorithm and Fixed Point Analysis

J Yang, Y Chen, AA Lu, W Zhong, X Gao, X You… - arXiv preprint arXiv …, 2024 - arxiv.org
In this two-part paper, we investigate the channel estimation for massive multiple-input
multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems. In Part I …

Chebyshev approximation and the global geometry of model predictions

KN Quinn, H Wilber, A Townsend, JP Sethna - Physical Review Letters, 2019 - APS
Complex nonlinear models are typically ill conditioned or sloppy; their predictions are
significantly affected by only a small subset of parameter combinations, and parameters are …

Data-driven classification, reduction, parameter identification and state extension in hybrid power systems

AT Sarić, MK Transtrum… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The paper describes a manifold learning-based algorithm for big data classification and
reduction, as well as parameter identification in real-time operation of a power system. Both …

Time-Varying ADN Load Modeling Considering the Suppression of the Plateau Phenomenon and Continuous Low-Quality Data

P Wang, Z Zhang, C Chen, Q Huang… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
The time-varying parameter identification of load models has attracted broad attention when
large amounts of intermittent distributed generations (DGs) and stochastic loads are …