Results 101 to 110 of about 22,170,122 (349)

The Prediction Performance Analysis of the Lasso Model with Convex Non-Convex Sparse Regularization

Algorithms
The incorporation of ℓ1 regularization in Lasso regression plays a crucial role by inducing convexity to the objective function, thereby facilitating its minimization; when compared to non-convex regularization, the utilization of ℓ1 regularization ...
Wei Chen, Qiuyue Liu, Hancong Li, Jian Zou   +3 more
doaj   +1 more source

Perturbation of convex risk minimization and its application in differential private learning algorithms

Journal of Inequalities and Applications, 2017
Convex risk minimization is a commonly used setting in learning theory. In this paper, we firstly give a perturbation analysis for such algorithms, and then we apply this result to differential private learning algorithms.
Weilin Nie, Cheng Wang
doaj   +1 more source

Convex analysis and ideal tensegrities

Comptes Rendus. Mécanique, 2011
Abstract A theoretical framework based on convex analysis is formulated and developed to study tensegrity structures under steady-state loads. Many classical results for ideal tensegrities are rationally deduced from subdifferentiable models in a novel mechanical perspective. Novel energy-based criteria for rigidity and pre-stressability are provided,
MACERI, FRANCO, Marino, M, VAIRO, GIUSEPPE   +2 more
openaire   +3 more sources

Microphysiological Systems for Comorbidity Studies: Chronic Kidney Disease and Osteoarthritis

Advanced Healthcare Materials, EarlyView.
This review highlights the potential of organ‐on‐a‐chip systems for studying comorbidities, using chronic kidney disease (CKD) and osteoarthritis (OA) as examples. It summarizes recent advances in kidney‐on‐a‐chip and joint‐on‐a‐chip models and discusses their current and potential application in investigating CKD, OA, and CKD‐OA comorbidity, aiming to
Mingying Han, Weiping Lin, Yuanxiong Cao, Patricia Murray, Bettina Wilm, Stephen J McWilliam, Jude Curran, Ruoxiao Xie   +7 more
wiley   +1 more source

pyStoNED: A Python Package for Convex Regression and Frontier Estimation

Journal of Statistical Software
Shape-constrained nonparametric regression is a growing area in econometrics, statistics, operations research, machine learning, and related fields.
Sheng Dai, Yu-Hsueh Fang, Chia-Yen Lee, Timo Kuosmanen   +3 more
doaj   +1 more source

Decoding Hydrogel Porosity: Advancing the Structural Analysis of Hydrogels for Biomedical Applications

Advanced Healthcare Materials, EarlyView.
Porosity governs transport mechanics in hydrogels, yet characterization in its native state remains challenging. This work harnesses particle tracking to uncover three‐dimensional pore geometric features in polyethylene glycol hydrogels. Measurements in the native state reveal pores characteristics are comparable to those obtained by cryogenic scanning
M. A. Kristine Tolentino, Eric Y. Du, Giulia Silvani, Elvis Pandzic, Kristopher A. Kilian, J. Justin Gooding   +5 more
wiley   +1 more source

Engineering Anisotropic Mechanical Properties in Large‐Scale Fabricated Cartilage Constructs Using Microfiber Reinforcement

Advanced Healthcare Materials, EarlyView.
This study presents the development of large‐scale (15 cm2) cartilage constructs with anisotropic mechanical properties using melt electrowritten (MEW) microfiber reinforced cell‐laden gelatin methacryloyl (gelMA). These constructs mimic the mechanical behavior of native cartilage, providing a suitable environment for Articular Cartilage ...
Lennard Spauwen, Alba Pueyo Moliner, Patrick van Veenendaal, Roel Custers, Jos Malda, Mylène de Ruijter   +5 more
wiley   +1 more source

Convergence Analysis of Some Methods for Minimizing a Nonsmooth Convex Function [PDF]

, 1998
John R. Birge, Liqun Qi, Zhaoying Wei
openalex   +1 more source

3D Bioprinted Renal Constructs Using Kidney‐Specific ECM Bioink System on Kidney Regeneration

Advanced Healthcare Materials, EarlyView.
A kidney‐specific bioink derived from decellularized porcine kidney tissue supports the encapsulation, viability, and maturation of human primary kidney cells within 3D bioprinted constructs. In vivo, it also promotes the recruitment of host renal progenitor cells, collectively enhancing structural and functional regeneration of renal tissue.
Gabriel Carreno‐Caleano, Mohamed Ali, James J. Yoo, Sang Jin Lee, Anthony Atala   +4 more
wiley   +1 more source

Cephalometrically analysis of the convexity angle

Stomatoloski glasnik Srbije, 2003
The convexity angle of facial bone structures ( N-A: A-Pg) expresses the sagittal protrusion of the maxillary part of the face compared to facial profile (the convex or concave face).The convexity angle is defined as the angle colligated by the lines N-A and A-Pg.
openaire   +4 more sources