Results 31 to 40 of about 582,651 (294)

An Empirical Evaluation of Stacked Ensembles With Different Meta-Learners in Imbalanced Classification

IEEE Access, 2021
The selection of a meta-learner determines the success of a stacked ensemble as the meta-learner is responsible for the final predictions of the stacked ensemble.
Seng Zian, Sameem Abdul Kareem, Kasturi Dewi Varathan   +2 more
doaj   +1 more source

Remarkable effect of stacking on the electronic and optical properties of few layer black phosphorus

, 2015
The effect of the number of stacking layers and the type of stacking on the electronic and optical properties of bilayer and trilayer black phosphorus are investigated by using first principles calcula- tions within the framework of density functional ...
Cakir, Deniz, Peeters, Francois M., Sevik, Cem   +2 more
core   +1 more source

Comparative Analysis of Hybrid Model Performance Using Stacking and Blending Techniques for Student Drop Out Prediction In MOOC

Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi)
Despite being in high demand as a lifelong learner and academic material supplement, the implementation of Massive Open Online Courses (MOOC) has problems, one of which is the dropout rate (DO) of students, which reaches 93%.
Muhammad Ricky Perdana Putra, Ema Utami
doaj   +1 more source

Stacking-dependent electronic structure of trilayer graphene resolved by nanospot angle-resolved photoemission spectroscopy

, 2017
The crystallographic stacking order in multilayer graphene plays an important role in determining its electronic structure. In trilayer graphene, rhombohedral stacking (ABC) is particularly intriguing, exhibiting a flat band with an electric-field ...
Asensio, Maria C., Avila, José, Bao, Changhua, Chen, Chaoyu, Wang, Eryin, Yao, Wei, Zhou, Shuyun   +6 more
core   +2 more sources

Sleep Posture Recognition Method Based on Sparse Body Pressure Features

Applied Sciences
Non-visual techniques for identifying sleep postures have become essential for enhancing sleep health. Conventional methods depend on a costly professional medical apparatus that is challenging to adapt for domestic use.
Changyun Li, Guoxin Ren, Zhibing Wang
doaj   +1 more source

An Empirical Analysis of Machine Learning Algorithms for Crime Prediction Using Stacked Generalization: An Ensemble Approach

IEEE Access, 2021
Ensemble learning method is a collaborative decision-making mechanism that implements to aggregate the predictions of learned classifiers in order to produce new instances. Early analysis has shown that the ensemble classifiers are more reliable than any
Sapna Singh Kshatri, Deepak Singh, Bhavana Narain, Surbhi Bhatia, Mohammad Tabrez Quasim, G. R. Sinha   +5 more
doaj   +1 more source

Stacking Order dependent Electric Field tuning of the Band Gap in Graphene Multilayers

, 2010
The effect of different stacking order of graphene multilayers on the electric field induced band gap is investigated. We considered a positively charged top and a negatively charged back gate in order to independently tune the band gap and the Fermi ...
Avetisyan, A. A., Partoens, B., Peeters, F. M.   +2 more
core   +1 more source

Detection of Oral Beta-Lactam Antibiotics Using a Taste Sensor with Surface-Modified Lipid/Polymer Membranes

Chemosensors
In our previous study, a taste sensor modified with 3-bromo-2,6-dihydroxybenzoic acid (3-Br-2,6-DHBA) exhibited significant responses to xanthine-based substances, suggesting an allosteric detection mechanism. This study investigates the potential of the
Takahiro Uchida, Ziyi Jiang, Zeyu Zhao, Shunsuke Kimura, Takeshi Onodera, Kiyoshi Toko   +5 more
doaj   +1 more source

A Novel Current-Source-Based Gate Driver With Active Voltage Balancing Control for Series-Connected GaN HEMTs

IEEE Open Journal of Power Electronics, 2021
The voltage rating of the commercial Gallium Nitride (GaN) power devices are limited to 600/650 V due to the lateral structure. Stacking the low-voltage rating devices is a straightforward approach to block higher dc link voltage. However, the unbalanced
Zhengda Zhang, Chunhui Liu, Mengzhi Wang, Yunpeng Si, Yifu Liu, Qin Lei   +5 more
doaj   +1 more source

Stacking the Equiangular Spiral [PDF]

, 2013
We present an algorithm that adapts the mature Stack and Draw (SaD) methodology for fabricating the exotic Equiangular Spiral Photonic Crystal Fiber.
Agrawal, A., Azabi, Y. O., Rahman, B. M.
core   +2 more sources