Results 81 to 90 of about 13,618 (231)

Dynamic mode decomposition in vector-valued reproducing kernel Hilbert spaces for extracting dynamical structure among observables

, 2019
Understanding nonlinear dynamical systems (NLDSs) is challenging in a variety of engineering and scientific fields. Dynamic mode decomposition (DMD), which is a numerical algorithm for the spectral analysis of Koopman operators, has been attracting ...
94165, 94166, Fujii, Keisuke, Kawahara, Yoshinobu   +3 more
core   +1 more source

Spectral entropy variability of intraoperative electrocorticography predicts outcome after epilepsy surgery in people with focal cortical dysplasia

Epilepsia, EarlyView.
Abstract Objective Epilepsy surgery in people with focal cortical dysplasia (FCD) requires accurate removal of all epileptogenic tissue, and outcome is difficult to predict. We explored whether spectral entropy, a fast computable electroencephalographic (EEG) feature, could estimate epileptic activity in intraoperative electrocorticography (ioECoG) and
Eline V. Schaft, Sem Hoogteijling, Dongqing Sun, Cyrille H. Ferrier, Pieter van Eijsden, Wim M. Otte, Galia Anguelova, Nick F. Ramsey, Maryse A. van't Klooster, Maeike Zijlmans, on behalf of the RESPect database study group, Charlotte van Asch, Lydia van de Berg, Dorien van Blooijs, Kim Boshuisen, Mireille Bourez, Kees Braun, Jan Willem Dankbaar, Matteo Demuru, Pieter van Eijsden, Cyrille Ferrier, Tineke Gebbink, Fernando Gomez‐Acebo Ruiz, Peter Gosselaar, Kimberley Grasmeijer, Renate van Griethuysen, Jiaojiao Guo, Irene Heijink, Monique Hobbelink, Friso Hoefnagels, Sem Hoogteijling, Geertjan Huiskamp, Sarah Jacobs, Floor Jansen, Susanne Jelsma, Nicole van Klink, Merel Koopmans, Frans Leijten, Wouter Maathuis, Mariska Mantione, Angelika Muhlebner, Brechje Olgers, Janine van Ophorst, Miranda Postma, Sandra van der Salm, Eline Schaft, Anniek van Schaik, Monique van Schooneveld, Dongqing Sun, Ziyi Wang, Martine van Zandvoort, Eva Zuidhoek, Willemiek Zweiphenning, Jack Zwemmer   +53 more
wiley   +1 more source

Functional dimensionality of Koopman eigenfunction space

Results in Applied Mathematics
This work presents the general form solution of Koopman Partial Differential Equation for an autonomous system of N ordinary differential equations. We identify a domain in RN for which any number in the complex plane is an eigenvalue of the Koopman ...
Ido Cohen, Eli Appleboim, Gershon Wolansky   +2 more
doaj   +1 more source

Forecasting With Dynamic Factor Models Estimated by Partial Least Squares

Journal of Forecasting, EarlyView.
ABSTRACT Dynamic factor models (DFMs) have found great success in nowcasting and short‐term macroeconomic forecasting when incorporating large sets of predictive information. The factor loadings are typically estimated cross‐sectionally with principal component analysis (PCA) or maximum likelihood (ML), which ignore whether the factors have predictive ...
Samuel Rauhala
wiley   +1 more source

Operating Capacity, Pricing and Supply Elasticity in Container Shipping Markets

International Journal of Finance &Economics, EarlyView.
ABSTRACT We investigate the channels through which changes in operating capacity influence freight rates in the container shipping market using a novel dataset to create an operating capacity index at the shipping‐route level. Our analysis reveals that when supply elasticity is low, an increase in operating capacity tends to drive freight rates upward,
Cong Sui, Shang Wang, Jingmin Liang, Nikos K. Nomikos   +3 more
wiley   +1 more source

Koopman Explicit Model Following Control Framework for a Robotic Manipulator

IEEE Access
Robotic manipulators have nonlinear and coupled dynamics, and this situation makes accurate modeling and control difficult under parameter uncertainties and external effects.
Oguz Kaan Hancioglu, Mehmet Onder Efe
doaj   +1 more source

Embracing Creative Nonconformists and Promoting Them May Require Leaders' High Control Appraisals

Journal of Organizational Behavior, EarlyView.
ABSTRACT Promoting creative employees is essential to innovation and organizational success. However, leaders do not always embrace the nonconformist nature of creative behaviors. This study examines how leaders' control appraisals—a personal orientation reflecting their belief in their own ability to control situations—influence their receptiveness ...
Xue Peng, Wen Cheng, Man‐Nok Wong
wiley   +1 more source

The Purview of the Particular: Power and Method in Foucaultian Genealogy

Constellations, EarlyView.
ABSTRACT If Foucault was anything, he was a particularist. And yet, if we are to find valuable tools in his method today, they must be able to assist our framing and analysis of non‐particular issues. By what means can Foucault's methods grasp trans‐contextual problems?
Matt Kelley
wiley   +1 more source

Uncertainty Quantification of Autoencoder-Based Koopman Operator

2024 American Control Conference (ACC)
6 pages, 3 ...
Kim, Jin Sung, Quan, Ying Shuai, Chung, Chung Choo   +2 more
openaire   +2 more sources

Blubber Thickening Driven by UCP1 Inactivation: Insights from a Cetacean‐Like Transgenic Mouse Model

Integrative Zoology, EarlyView.
UCP1 inactivation of cetaceans in mice drives BAT whitening and iWAT hyperplasia, promoting fat accumulation for aquatic adaptation. Abstract Cetaceans possess thick blubber, a specialized adipose tissue essential for thermal insulation, a streamlined body form, energy storage, and buoyancy. However, the mechanisms that underpin this adaptation are not
Qian Zhang, Yuehua Wang, Hang Zhang, Guiping Xu, Shixia Xu, Guang Yang   +5 more
wiley   +1 more source