Results 61 to 70 of about 269,671 (328)

Research on intelligent fault identification method of coalfield based on the PSO-XGBoost algorithm

矿业科学学报
In order to further improve the accuracy and efficiency of underground fault identification, an intelligent fault recognition model based on the extreme gradient boosting tree (XGBoost) machine learning algorithm was constructed for coal seam faults ...
LIN Peng, SUN Cheng, REN Ke, LIU Yulin, LI Yang   +4 more
doaj   +1 more source

A particle swarm optimization based memetic algorithm for dynamic optimization problems [PDF]

, 2009
Copyright @ Springer Science + Business Media B.V. 2010.Recently, there has been an increasing concern from the evolutionary computation community on dynamic optimization problems since many real-world optimization problems are dynamic.
AS Uyar, B Liu, CK Goh, D Liu, D Parrott, Dingwei Wang, H Ishibuchi, H Wang, H Wang, Hongfeng Wang, J Tang, JE Gallardo, JE Smith, M Tang, N Krasnogor, R Tinos, S Janson, S Man, S Yang, S Yang, S Yang, Shengxiang Yang, TM Blackwell, W. H. Ip, Y Jin, YG Petalas   +25 more
core   +4 more sources

High‐Throughput Screening and Interpretable Machine Learning for Rational Design of Bimetallic Catalysts for Methane Activation

Advanced Science, EarlyView.
ABSTRACT Methane's efficient catalytic removal is vital for sustainable development. Bimetallic catalysts, though promising for methane activation, pose a design challenge due to their complex compositional space. This work introduces an integrated framework that combines high‐throughput density functional theory (DFT) and interpretable machine ...
Mingzhang Pan, Tian Zhang, Jiawei Dong, Yubao Xie, Kaifeng Zhong, Wei Guan, Haiqiao Wei, Changcheng Fu, Yaqiong Su   +8 more
wiley   +1 more source

Crystal Structure Prediction via Particle Swarm Optimization

, 2010
We have developed a powerful method for crystal structure prediction from "scratch" through particle swarm optimization (PSO) algorithm within the evolutionary scheme.
Lv, Jian, Ma, Yanming, Wang, Yanchao, Zhu, Li   +3 more
core   +1 more source

Temporal features of LS I +61$^{\circ}$303 in hard X-rays from the Swift/BAT survey data [PDF]

, 2016
We study the long-term spectral and timing behaviour of LS I +61$^{\circ}$303 in hard X-rays (15--150 keV) using $\sim$10 years of survey data from the $Swift$ Burst Alert Telescope (BAT) monitor.
Cusumano, G., D'Aì, A., La Parola, V., Mineo, T., Segreto, A.   +4 more
core   +2 more sources

Arbitrary Orthogonal Polarization Decomposition and Routing With Complex Amplitude Modulation via Wheel‐of‐Fortune‐Inspired Metasurfaces

Advanced Science, EarlyView.
This work demonstrates a receiver‐transmitter‐integrated metasurface that decomposes an incident wave into orthogonal components and routes them into separate channels. Inspired by a “Wheel‐of‐Fortune” mechanism, it enables independent control over the amplitude, phase, and polarization of the transmitted wave.
Tong Liu, Changhong Dai, Weike Feng, Yanzhao Wang, Wenxin Liu, Wentao Zhang, Chao Tian, Guangwei Hu, He‐Xiu Xu   +8 more
wiley   +1 more source

Optimizing PSO for classification: comparison of Naïve Bayes and C4.5 for osteoporosis prediction

Jurnal Ilmiah SINERGI
Osteoporosis is a medical disease marked by a reduction in bone density, which significantly increases the risk of fractures. Osteoporosis patients do not always exhibit symptoms and because current diagnostic techniques have limitations, early detection
Zulfi Anugerahwati, Sri Lestari
doaj   +1 more source

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Integrating hedge algebras and optimization techniques to reduce forecasting errors in fuzzy time series model

IJAIN (International Journal of Advances in Intelligent Informatics)
Accurate forecasting in fuzzy time series (FTS) models is essential for applica-tions such as financial markets, traffic fatalities, and academic enrollments.
Nghiêm Văn Tính
doaj   +1 more source

Multi-objective optimization of process parameters for ultrasonic rolling extrusion of 42CrMo material

Mechanics & Industry, 2023
To choose the most suitable method to solve the process parameter optimization of ultrasonic rolling extrusion, the 42CrMo material was taken as the research object. Based on a four-factor five-level orthogonal experiment, the response surface method was
Wang Xiaoqiang, Wang Haojie, Wang Paigang, Zhu Qiping   +3 more
doaj   +1 more source