Results 21 to 30 of about 1,868,423 (267)

Adaptive Backstepping Control Design for Uncertain Rigid Spacecraft With Both Input and Output Constraints

open access: yesIEEE Access, 2018
In this paper, a barrier Lyapunov function (BLF)-based backstepping control design is proposed for uncertain rigid spacecraft with both input and output constraints.
Zhongtian Chen   +3 more
doaj   +1 more source

A data-driven reflectance model [PDF]

open access: yesACM SIGGRAPH 2003 Papers, 2003
We present a generative model for isotropic bidirectional reflectance distribution functions (BRDFs) based on acquired reflectance data. Instead of using analytical reflectance models, we represent each BRDF as a dense set of measurements. This allows us to interpolate and extrapolate in the space of acquired BRDFs to create new BRDFs.
Matusik, Wojciech   +3 more
openaire   +2 more sources

Gaussian Process Surrogates for Modeling Uncertainties in a Use Case of Forging Superalloys

open access: yesApplied Sciences, 2022
The avoidance of scrap and the adherence to tolerances is an important goal in manufacturing. This requires a good engineering understanding of the underlying process. To achieve this, real physical experiments can be conducted.
Johannes G. Hoffer   +2 more
doaj   +1 more source

Data-driven gradient flows

open access: yesETNA - Electronic Transactions on Numerical Analysis, 2022
We present a framework enabling variational data assimilation for gradient flows in general metric spaces, based on the minimizing movement (or Jordan-Kinderlehrer-Otto) approximation scheme. After discussing stability properties in the most general case, we specialise to the space of probability measures endowed with the Wasserstein distance.
Pietschmann, Jan-Frederik   +1 more
openaire   +5 more sources

Self-supervised optimization of random material microstructures in the small-data regime

open access: yesnpj Computational Materials, 2022
While the forward and backward modeling of the process-structure-property chain has received a lot of attention from the materials’ community, fewer efforts have taken into consideration uncertainties.
Maximilian Rixner   +1 more
doaj   +1 more source

Data vs. Physics: The Apparent Pareto Front of Physics-Informed Neural Networks

open access: yesIEEE Access, 2023
Physics-informed neural networks (PINNs) have emerged as a promising deep learning method, capable of solving forward and inverse problems governed by differential equations.
Franz M. Rohrhofer   +3 more
doaj   +1 more source

Data-Driven Innovation: What Is It? [PDF]

open access: yesIEEE Transactions on Engineering Management, 2021
The future of innovation processes is anticipated to be more data-driven and empowered by the ubiquitous digitalization, increasing data accessibility and rapid advances in machine learning, artificial intelligence, and computing technologies. While the data-driven innovation (DDI) paradigm is emerging, it has yet been formally defined and theorized ...
openaire   +2 more sources

Adaptive Finite-Time Command Filtered Fault-Tolerant Control for Uncertain Spacecraft with Prescribed Performance

open access: yesComplexity, 2018
In this paper, an adaptive finite-time fault-tolerant control scheme is proposed for the attitude stabilization of rigid spacecrafts. A first-order command filter is presented at the second step of the backstepping design to approximate the derivative of
Zhongtian Chen   +3 more
doaj   +1 more source

Data-Driven Color Manifolds [PDF]

open access: yesACM Transactions on Graphics, 2015
Color selection is required in many computer graphics applications, but can be tedious, as 1D or 2D user interfaces are employed to navigate in a 3D color space. Until now the problem was considered a question of designing general color spaces with meaningful (e.g., perceptual) parameters. In this work, we show how color selection usability improves by
Nguyen, C.   +2 more
openaire   +2 more sources

Health‐Related Social Needs in Children With Sickle Cell Disease Are Associated With Worse Health‐Related Quality of Life

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell disease (SCD) face multiple acute and chronic medical complications that may impact their quality of life as reported by patients themselves. Health‐related social needs (HRSNs), such as food and housing insecurity, are common in people with SCD, but the association between HRSNs and patient‐reported ...
Sarah J. Marks   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy