Results 11 to 20 of about 1,071,502 (272)

Data‐driven performance metrics for neural network learning

International Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary Effectiveness of data‐driven neural learning in terms of both local mimima trapping and convergence rate is addressed. Such issues are investigated in a case study involving the training of one‐hidden‐layer feedforward neural networks with the extended Kalman filter, which reduces the search for the optimal network parameters to a state ...
Angelo Alessandri, Mauro Gaggero, Marcello Sanguineti   +2 more
wiley   +1 more source

Topology Optimization of Lattice Support Structure for Cantilever Beams Fabricated Via Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView., 2023
A numerical scheme is presented to design a lattice support for metallic components additively built via laser powder bed fusion. Results show that thermal‐induced distortion can be respectively reduced by 69%, 58%, and 50% in comparison to a uniform lattice, a fully solid support, and a truss‐based lattice support.
Jiazheng Hu, Marjan Molavi‐Zarandi, Damiano Pasini   +2 more
wiley   +1 more source

Failure Analysis for Hydraulic System of Heavy-Duty Machine Tool with Incomplete Failure Data

Applied Sciences, 2021
A hydraulic system is a key subsystem of heavy-duty machine tools with a high failure intensity, the failure of which often causes shutdown of production and economic loss in machining. Therefore, it is necessary to implement failure analysis to identify
Shizheng Li, Zhaojun Yang, Hailong Tian, Chuanhai Chen, Yongfu Zhu, Fuqin Deng, Song Lu   +6 more
doaj   +1 more source

Radu groups acting on trees are CCR [PDF]

J. Aust. Math. Soc. 117 (2024) 149-186, 2022
We classify the irreducible unitary representations of closed simple groups of automorphisms of trees acting $2$-transitively on the boundary and whose local action at every vertex contains the alternating group. As an application, we confirm Claudio Nebbia's CCR conjecture on trees for $(d_0,d_1)$-semi-regular trees such that $d_0,d_1\in \Theta ...
arxiv   +1 more source

On the regularization of extremal three-point functions involving giant gravitons

Physics Letters B, 2015
In the AdS5/CFT4 set-up, extremal three-point functions involving two giant 1/2 BPS gravitons and one point-like 1/2 BPS graviton, when calculated using semi-classical string theory methods, match the corresponding three-point functions obtained in the ...
Charlotte Kristjansen, Stefano Mori, Donovan Young   +2 more
doaj   +1 more source

Multi-decision tree prediction model for coal seam floor water inrush based on cost-sensitive theory

Gong-kuang zidonghua, 2020
When predicting coal seam floor water inrush, the situation is generally divided into two states: safe state and water inrush state. The state data has non-equilibrium characteristics.
LI Yanmin, ZHOU Chenyang, LI Fenglian
doaj   +1 more source

Unfolding of Finite Concurrent Automata [PDF]

Electronic Proceedings in Theoretical Computer Science, 2018
We consider recognizable trace rewriting systems with level-regular contexts (RTL). A trace language is level-regular if the set of Foata normal forms of its elements is regular. We prove that the rewriting graph of a RTL is word-automatic.
Alexandre Mansard
doaj   +1 more source

Tree series and pattern avoidance in syntax trees [PDF]

Journal of Combinatorial Theory, Series A, 176, 2020, 2019
A syntax tree is a planar rooted tree where internal nodes are labeled on a graded set of generators. There is a natural notion of occurrence of contiguous pattern in such trees. We describe a way, given a set of generators $\mathfrak{G}$ and a set of patterns $\mathcal{P}$, to enumerate the trees constructed on $\mathfrak{G}$ and avoiding $\mathcal{P}$
arxiv   +1 more source

An Intelligent Fault Analysis and Diagnosis System for Electromagnet Manufacturing Process Based on Fuzzy Fault Tree and Evidence Theory

Mathematics, 2022
Because an electromagnet has a complex structure and manufacturing process, it is difficult to analyze the overall failure of the electromagnet. In order to solve this problem, a fault intelligent analysis and diagnosis system based on fuzzy fault tree ...
Jihong Pang, Jinkun Dai, Yong Li
doaj   +1 more source

Failure Probability Analysis of Coherent Systems using Intuitionistic Fuzzy Fault Tree Approach [PDF]

International Journal of Mathematical, Engineering and Management Sciences
In scenarios where system component failure probabilities are insufficient or imprecise, classical fault tree analysis methods often fail in providing precise assessments of system reliability and safety.
Mintu Kumar, S. B. Singh , Monika Manglik   +2 more
doaj   +1 more source