Kuwait Journal of Science & Engineering最新文献_第6页

An optimal multi-disease prediction framework using hybrid machine learning techniques 基于混合机器学习技术的最优多疾病预测框架

Kuwait Journal of Science & Engineering Pub Date : 2022-06-22 DOI: 10.48129/kjs.splml.19321

Aditya Gupta, Amritpal Singh

引用次数: 2

Regression with right-censored high-dimensional data: An application with different imputation techniques 右截尾高维数据的回归:不同归算技术的应用

Kuwait Journal of Science & Engineering Pub Date : 2022-06-22 DOI: 10.48129/kjs.splml.18961

E. Yılmaz, D. Aydın, S. Ahmed

{"title":"Regression with right-censored high-dimensional data: An application with different imputation techniques","authors":"E. Yılmaz, D. Aydın, S. Ahmed","doi":"10.48129/kjs.splml.18961","DOIUrl":"https://doi.org/10.48129/kjs.splml.18961","url":null,"abstract":"This study aims to introduce four modified linear estimators for the right-censored high-dimensional data. Obviously, data of interest involves two important problems to be solved that are censorship and high dimensionality. This paper can be distinguished from other studies in the literature with that it achieves to handle these two problems simultaneously. The main contribution of the paper is merging weightedridge method with the imputation techniques to obtain more efficient estimators than its alternatives. To solve the censorship problem, four imputation techniques are considered based on machine learning algorithms kNN, sliding-windows, regression and support vector machines. The high-dimensionality problem is handled by the weighted ridge approach which provides estimator with less risk than its alternatives because it detects the covariates with a weak contribution via the post-selection procedure. To show the empirical performance of the introduced estimators, a simulation study is made and comparative results are presented. Results show that kNN and regression imputation basis WR esitmators show satisfying performances on estimation of the high-dimensional right-censored model.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"90 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76273663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Using binary classification to evaluate the quality of machine translators 用二值分类评价机器翻译质量

Kuwait Journal of Science & Engineering Pub Date : 2022-06-22 DOI: 10.48129/kjs.splml.19547

Ran Li, Yihao Yang, Kelin Shen, Mohammed Hijji

引用次数: 0

A hybrid approach based on k-nearest neighbors and decision tree for software fault prediction 基于k近邻和决策树的软件故障预测混合方法

Kuwait Journal of Science & Engineering Pub Date : 2022-05-10 DOI: 10.48129/kjs.18331

Manpreet Manpreet, J. Chhabra

引用次数: 0

Recovery of coefficients of a heat equation by Ritz collocation method 热方程系数的Ritz配置法恢复

Kuwait Journal of Science & Engineering Pub Date : 2022-05-10 DOI: 10.48129/kjs.18581

Prof.Kamal Rashedi

{"title":"Recovery of coefficients of a heat equation by Ritz collocation method","authors":"Prof.Kamal Rashedi","doi":"10.48129/kjs.18581","DOIUrl":"https://doi.org/10.48129/kjs.18581","url":null,"abstract":"In this work, we discuss a one dimensional inverse problem for the heat equation where the unknown functions are solely time-dependent lower order coefficient and multiplicative source term. We use as data two integral overdetermination conditions along with the initial and Dirichlet boundary conditions. In the first step, the lower order term is eliminated by applying a transformation and the problem is converted to an equivalent inverse problem of determining a heat source with initial and boundary conditions, as well as a nonlocal energy over-specification. Then, we propose a Ritz approximation as the solution of the unknown temperature distribution and consider a truncated series as the approximation of unknown time-dependent coefficient in the heat source. The collocation method is utilized to reduce the inverse problem to the solution of a linear system of algebraic equations. Since the problem is ill-posed, numerical discretization of the reformulated problem may produce ill-conditioned system of equations. Therefore, the Tikhonov regularization technique is employed in order to obtain stable solutions. For the perturbed measurements, we employ the mollification method to derive stable numerical derivatives. Numerical simulations while solving two test examples are presented to show the applicability of the proposed method.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80248615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Z-graphic topology on undirected graph 无向图上的z图拓扑

Kuwait Journal of Science & Engineering Pub Date : 2022-05-10 DOI: 10.48129/kjs.17541

H. O. Zomam, M. Dammak

引用次数: 1

Production of Titanium oxide nano wires with bundle structure using single anodic process 采用单阳极法生产束状结构氧化钛纳米线

Kuwait Journal of Science & Engineering Pub Date : 2022-05-10 DOI: 10.48129/kjs.19577

M. S. Hashim, R. Khaleel

引用次数: 0

Assessment of Health Risk due to Pb, Cd, and Cr Concentrations in Imported Cheese Samples in Iraq Markets 伊拉克市场进口奶酪样品中铅、镉和铬浓度对健康的风险评估

Kuwait Journal of Science & Engineering Pub Date : 2022-05-10 DOI: 10.48129/kjs.19245

A. Abojassim, R. R. Muneam

{"title":"Assessment of Health Risk due to Pb, Cd, and Cr Concentrations in Imported Cheese Samples in Iraq Markets","authors":"A. Abojassim, R. R. Muneam","doi":"10.48129/kjs.19245","DOIUrl":"https://doi.org/10.48129/kjs.19245","url":null,"abstract":"The aim of this study is to determine three heavy metals (Pb, Cd, and Cr) concentrations in cheese samples in Iraq markets that are produced in Iran and Turkey. The concentrations of Pb, Cd, and Cr were measured using atomic absorption spectroscopy. Human health risk parameters, such as Estimated Daily Intake (EDI), Target Hazard Quotient (THQ), Hazard Index (HI), and Carcinogenic risk (CR) due to heavy metals were calculated in all cheese samples of the present study. The average value concentrations of Pb, Cd, and Cr in cheese samples made manufactured in Iran were 4.33±0.57 mg/kg, 0.135±0.03, mg/kg, and 0.183±0.12 mg/kg, respectively. While those which were made in Turkey, the values were found to be 3.89±0.63 mg/kg, 0.167±0.032 mg/kg, and 0.105±0.07 mg/kg, respectively. The average values of HI in Iranian and Turkish cheese samples were 0.526±0.07 and 0.483±0.26, respectively. While the average values of CR×10-6 for Pb, Cd, and Cr in Iranian cheese samples were 0.006±0.0007, 1.13±0.0007, and 0.0056±0.7, respectively. But in Turkish cheese samples were 0.005±0.0008, 0.37±0.07, and 0.65±0.4, respectively. The heavy metal concentrations in the present study were found to be of no statistical significance, compared to the Iranian and Turkish cheese samples, where P-value was (P > 0.05). Most values for Pb, Cd and Cr concentrations were found to be higher than the allowed limits according to EU Regulations, while the health risk parameters were within the accepted worldwide average limits. Therefore, it can be concluded that most cheese samples have no health risks by consuming this cheese by consumers in Iraq.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89654777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

THERMO-MECHANICAL ASSESSMENT OF HIGH ENTROPHY (Fe-Ni-Cx (X=0.3-0.5), (Fe-Cr-Cx (X=0.3-0.5) TERNARY ALLOYS SYSTEM USING CALPHAD METHOD 高熵(Fe-Ni-Cx (X=0.3-0.5)， (Fe-Cr-Cx (X=0.3-0.5))三元合金体系的热力学评价

Kuwait Journal of Science & Engineering Pub Date : 2022-05-10 DOI: 10.48129/kjs.18613

W. U. Shah, D. Khan, Haiqing Yin, S. Jan

{"title":"THERMO-MECHANICAL ASSESSMENT OF HIGH ENTROPHY (Fe-Ni-Cx (X=0.3-0.5), (Fe-Cr-Cx (X=0.3-0.5) TERNARY ALLOYS SYSTEM USING CALPHAD METHOD","authors":"W. U. Shah, D. Khan, Haiqing Yin, S. Jan","doi":"10.48129/kjs.18613","DOIUrl":"https://doi.org/10.48129/kjs.18613","url":null,"abstract":"The thermodynamical assessment of high entropy alloys (Fe-Ni-Cx (X=0.3-0.5)), (Fe-Cr-Cx (X=0.3-0.5)) system is performed in this research work through FEDAMO database and Thermo-Calc software package. The high energy thermal analysis is manipulated for yield strength from FCC to BCC, precipitation from cementite to M7C3 (grain boundaries), Crack Susceptibility Coefficient for Fe-Ni-Cx ,Fe-Cr-Cx ternary alloys system at (1900-3000)K temperature with constant atmospheric pressure of 106 Pascal. The highest crack susceptibility coefficient for Fe-Cr-C, Fe-Ni-C system is found 2.21043, 0.26294 with mass percent of C 0.2500%, at 3000K of temperature with Mass percent. Yield strength from FCC to BCC is found 824.0453, 100.67063 for Fe-Cr-C, Fe-Ni-C ternary alloys. Phase transition is noted from cementite to M7C3 at 1346.77339 K. FCC_A1#3 phases with 0.98772 moles and 0.01228 mole Of M7C3 with 0 moles of M23C6 carbide phases observed. The comprehensive line investigation of mechanical properties is justified with simulation/computational inputs. The results are feasible for industrial sectors and metallurgical centers for operation. The alloy shows equilibrium and good stability.","PeriodicalId":49933,"journal":{"name":"Kuwait Journal of Science & Engineering","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83018529","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Some results on Steiner decomposition number of graphs 关于图的Steiner分解数的一些结果

Kuwait Journal of Science & Engineering Pub Date : 2022-05-10 DOI: 10.48129/kjs.16863

E. Merly, Mahiba M

引用次数: 0