Results 101 to 110 of about 906 (226)

Two Roads to Koopman Operator Theory for Control: Infinite Input Sequences and Operator Families

open access: yesCoRR
The Koopman operator, originally defined for dynamical systems without input, has inspired many applications in control. Yet, the theoretical foundations underpinning this progress in control remain underdeveloped. This paper investigates the theoretical structure and connections between two extensions of Koopman theory to control: (i) Koopman operator
Masih Haseli   +2 more
openaire   +2 more sources

It's the Politics!—Global Trade Governance Beyond Technocracy

open access: yesGlobal Policy, EarlyView.
ABSTRACT The World Trade Organization (WTO) struggles to respond to the growing entanglement of trade and geopolitics. Drawing on existing scholarship and 20 in‐depth interviews with ambassadors and senior trade diplomats conducted in Geneva ahead of the 13th WTO Ministerial 2024, this article reveals a fundamental dilemma at the heart of contemporary ...
Nora Kürzdörfer
wiley   +1 more source

Data-Driven Koopman Based System Identification for Partially Observed Dynamical Systems with Input and Disturbance

open access: yesSci
The identification of dynamical systems from data is essential in control theory, enabling the creation of mathematical models that accurately represent the behavior of complex systems.
Patinya Ketthong   +5 more
doaj   +1 more source

Seek and Ye Might Not Find: The Effects of Contract Framing on Knowledge Sharing and Knowledge Seeking Qui cherche ne trouve pas toujours : les effets liés à la formulation des contrats sur le partage et la recherche de renseignements

open access: yesContemporary Accounting Research, EarlyView.
ABSTRACT We conduct two experiments to examine whether and how the framing (bonus vs. penalty) of a target‐based incentive contract affects knowledge sharing and knowledge seeking. In the first experiment, we predict and find that penalty‐framed contracts increase employees' stress due to the fear of potential loss, which in turn reduces their ...
Ta‐Tung (Stephanie) Cheng   +3 more
wiley   +1 more source

An operator-theoretic viewpoint to non-smooth dynamical systems: Koopman analysis of a hybrid pendulum [PDF]

open access: yes, 2016
We apply an operator-theoretic viewpoint to a class of non-smooth dynamical systems that are exposed to event-triggered state resets. The considered benchmark problem is that of a pendulum which receives a downward kick at certain fixed angles.
Govindarajan, Nithin   +11 more
core   +1 more source

Reduced Order Data-Driven Twin Models for Nonlinear PDEs by Randomized Koopman Orthogonal Decomposition and Explainable Deep Learning

open access: yesMathematics
This study introduces a data-driven twin modeling framework based on modern Koopman operator theory, offering a significant advancement over classical modal decomposition by accurately capturing nonlinear dynamics with reduced complexity and no manual ...
Diana Alina Bistrian
doaj   +1 more source

Running towards: Labour market incentives for runaway slaves in the British Cape Colony, 1830–1838

open access: yesAsia‐Pacific Economic History Review, EarlyView.
Abstract Recent scholarship on slave escapes has increasingly emphasised economic motivation, but few studies have empirically investigated how market incentives influenced the decision‐making of enslaved individuals during transitions from coerced to wage labour.
Karl Bergemann   +2 more
wiley   +1 more source

A balance between stability and flexibility: Adaptive patterns of self‐regulated learning processes shape game‐based learning

open access: yesBritish Journal of Educational Technology, EarlyView.
Abstract To ensure learning efficiency in game‐based learning (GBL), learners must regulate cognitive, affective, metacognitive and motivational (CAMM) processes, collectively known as self‐regulated learning (SRL). SRL is dynamic and non‐linear, characterized by regulatory patterns and CAMM interactions that lead to macro‐level SRL behaviours. In this
Elizabeth B. Cloude   +6 more
wiley   +1 more source

PERIODIZING GEOLOGICALLY OUTWITH (AND WITHOUT?) THE ANTHROPOCENE: PASTS, AGENCIES, AND THE TERRESTRIAL

open access: yesHistory and Theory, EarlyView.
ABSTRACT As a periodization that is generally understood to refer to an era of Terrestrial relationships that developed with modernization and nuclearization, the Anthropocene cannot be applied simply to premodern histories and texts. However, it has introduced historians to geological periodization as a mode of describing periods of changed ...
Gwenffrewi J. Morgan
wiley   +1 more source

Boosting PM2.5 short-term prediction by coupling graph attention and koopman networks

open access: yesComputational Urban Science
Accurately predicting PM2.5 concentrations remains a major challenge due to the complex and nonlinear nature of its formation and transport processes. Traditional models often struggle to capture the spatiotemporal dynamics of PM2.5, particularly under ...
Yuhan Yu   +6 more
doaj   +1 more source

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