Results 151 to 160 of about 89,585 (267)

The Rank-2PL IRT Models for Forced-Choice Questionnaires: Maximum Marginal Likelihood Estimation with an EM Algorithm. [PDF]

J Educ Behav Stat
Fu J, Tan X, Kyllonen PC.
europepmc   +1 more source

Liquid Gallium Nanozyme Coatings Enable Sustained Nitric Oxide Generation With Antioxidant and Anti‐Inflammatory Functions

Advanced Science, EarlyView.
Liquid gallium (Ga) acts as a catalytic center for nitric oxide (NO) generation within a tannic acid–zirconium metal–phenolic network coating. Stabilized Ga nanoparticles catalyze S‐nitrosothiol decomposition through surface electron transfer, enabling controlled NO production, enhancing endothelial biocompatibility, and providing antioxidant and anti ...
Franco Centurion, Kang Lin, Shu Geng, Siti Nur Asyura Adzlan, Qingqing Fan, Federico Mazur, Ravindra Kokate, Priyank Kumar, Christina Cortez‐Jugo, Frank Caruso, Rona Chandrawati   +10 more
wiley   +1 more source

Prediction of earthquake hazard by hidden Markov model (around Bilecik, NW Turkey)

Open Geosciences, 2014
Can Ceren, Ergun Gul, Gokceoglu Candan
doaj   +1 more source

A General and Efficient Framework for the Rapid Design of Miniaturized, Wideband, and High‐Bit RIS

Advanced Electronic Materials, EarlyView.
A general and efficient framework is proposed for the rapid design of high‐performance reconfigurable intelligent surfaces (RISs). This framework integrates advanced antenna design techniques and incorporates various load types, quantities, and values to achieve the design of high‐performance RISs.
Jun Wei Zhang, Zheng Xing Wang, Wanwan Cao, Zhen Jie Qi, Li Jie Wu, Han Qing Yang, Qun Yan Zhou, Si Ran Wang, Hui Dong Li, Jun Yan Dai, Jiang Luo, Jun Wei Wu, Jia Nan Zhang, Zhen Zhang, Qiang Cheng   +14 more
wiley   +1 more source

Estimating Transition Intensity Rate on Interval-censored Data Using Semi-parametric with EM Algorithm Approach. [PDF]

Commun Stat Theory Methods
Qian C, Srivastava DK, Pan J, Hudson MM, Rai SN.   +4 more
europepmc   +1 more source

Knowledge-Guided Biclustering via Sparse Variational EM Algorithm. [PDF]

10th IEEE Int Conf Big Knowl (2019), 2019
Chang C, Oh J, Min EJ, Long Q.
europepmc   +1 more source

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +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

An acceleration with errors of the APX-EM algorithm

四川大学学报. 自然科学版
Factor analysis models are widely used in different disciplines such as economics.When a factor analysis model is implemented， it is needed to estimate the values of the parameters， and the maximum likelihood method is a common method for the estimation ...
DENG Yin, TANG Ya-Yong
doaj  

An EM algorithm to improve the estimation of the probability of clonal relatedness of pairs of tumors in cancer patients. [PDF]

BMC Bioinformatics, 2019
Mauguen A, Seshan VE, Ostrovnaya I, Begg CB.   +3 more
europepmc   +1 more source