Subcell limiting strategies for discontinuous Galerkin spectral element methods do not provably satisfy a semi-discrete cell entropy inequality. In this work, we introduce an extension to the subcell and monolithic co...
详细信息
This paper presents a study on the prediction of fetal state, which is crucial for preventing fetal mortality. CTG is a technique widely used for monitoring the fetal heart rate and uterine contractions. In our paper,...
详细信息
This paper presents a study on the prediction of fetal state, which is crucial for preventing fetal mortality. CTG is a technique widely used for monitoring the fetal heart rate and uterine contractions. In our paper, we implemented a novel ensemble classifier that combines the XGBoost and the Random Forest Classifiers to classify the fetal heart rate in CTG data. This study utilized a publicly available dataset with 2126 instances of fetal heart rate and uterine contractions. The results indicate that the ensemble classifier outperforms the individual XGBoost and Random Forest Classifier in terms of precision and F1 score. It also maintains a high level of accuracy of 96% across all categories, indicating that it effectively strikes a balance between correctly identifying true positives while avoiding false positives and negatives. We also compared the results with other classifiers combined with Adaboost and Gradient Boosting techniques and found that our method is more effective than other classifiers. This consistent performance demonstrates the classifier’s reliability.
We will prove that solutions of the Allen-Cahn equations that satisfy the equipartition of the energy can be transformed into solutions of the Euler equations with constant pressure. As a consequence, we obtain De Gio...
详细信息
The Pickands estimator for the extreme value index is beneficial due to its universal consistency, location, and scale invariance, which sets it apart from other types of estimators. However, similar to many extreme v...
详细信息
MSC Codes 93C05, 93C20, 93D20, 35Q93, 49M05It is shown that a switching control involving a finite number of Dirac delta actuators is able to steer the state of a general class of nonautonomous parabolic equations to ...
详细信息
The accurate prediction of the friction angle of clays is crucial for assessing slope stability in engineering *** study addresses the importance of estimating the friction angle and presents the development of four s...
详细信息
The accurate prediction of the friction angle of clays is crucial for assessing slope stability in engineering *** study addresses the importance of estimating the friction angle and presents the development of four soft computing models:YJ-FPA-MLPnet,YJ-CRO-MLPnet,YJ-ACOC-MLPnet,and *** of all,the Yeo-Johnson(YJ)transformation technique was used to stabilize the variance of data and make it more suitable for parametric statistical models that assume normality and equal *** technique is expected to improve the accuracy of friction angle prediction *** friction angle prediction models then utilized multi-layer perceptron neural networks(MLPnet)and metaheuristic optimization algorithms to further enhance performance,including flower pollination algorithm(FPA),coral reefs optimization(CRO),ant colony optimization continuous(ACOC),and cuckoo search algorithm(CSA).The prediction models without the YJ technique,***-MLPnet,CRO-MLPnet,ACOC-MLPnet,and CSA-MLPnet,were then compared to those with the YJ technique,***-FPA-MLPnet,YJ-CRO-MLPnet,YJ-ACOC-MLPnet,and *** these,the YJ-CRO-MLPnet model demonstrated superior reliability,achieving an accuracy of up to 83%in predicting the friction angle of clay in practical engineering *** improvement is significant,as it represents an increase from 1.3%to approximately 20%compared to the models that did not utilize the YJ transformation technique.
The advancement of single-cell RNA-sequencing (scRNA-seq) technologies allow us to study the individual level cell-type-specific gene expression networks by direct inference of genes’ conditional independence structu...
详细信息
A system of interacting spins that are under the influence of spin-polarized currents can be described using a complex functional, or a non-Hermitian (NH) Hamiltonian. We study the dynamics of two exchange-coupled spi...
详细信息
In this paper we consider an initial-boundary value problem with a Caputo time derivative of order α ∈ (0, 1). The solution typically exhibits a weak singularity near the initial time and this causes a reduction in ...
详细信息
We prove existence of optimal control for the deterministic and stochastic shallow lake problem without any restrictions on the parameter space and we establish a generalization of the Arrhenius Law in the case of noi...
详细信息
暂无评论