Imbalanceddata classification is one of the major problems in machine *** imbalanceddataset typically has significant differences in the number of data samples between its *** most cases,the performance of the machi...
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Imbalanced data classification is one of the major problems in machine *** imbalanced dataset typically has significant differences in the number of data samples between its *** most cases,the performance of the machine learning algorithm such as Support Vector Machine(SVM)is affected when dealing with an imbalanced *** classification accuracy is mostly skewed toward the majority class and poor results are exhibited in the prediction of minority-class *** this paper,a hybrid approach combining data pre-processing technique andSVMalgorithm based on improved Simulated Annealing(sa)was ***,the data preprocessing technique which primarily aims at solving the resampling strategy of handling imbalanced datasets was *** this technique,the data were first synthetically generated to equalize the number of samples between classes and followed by a reduction step to remove redundancy and duplicated *** is the training of a balanced dataset using *** this algorithm requires an iterative process to search for the best penalty parameter during training,an improved sa.a.gorithm was proposed for this *** this proposed improvement,a new acceptance criterion for the solution to be accepted in the sa.a.gorithm was introduced to enhance the accuracy of the optimization *** works based on ten publicly available imbalanced datasets have demonstrated higher accuracy in the classification tasks using the proposed approach in comparison with the conventional implementation of *** at an average of 89.65%of accuracy for the binary class classification has demonstrated the good performance of the proposed works.
A new europium(Ⅲ)complex containing(4-Methyl-2-oxo-2 H-chromen-7-yloxy)-acetic acid moiety(CMMC)was synthesized,characterized,and confirmed as antitumor agent and fluorescent *** spectroscopic measurements of Eu(Ⅲ)i...
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A new europium(Ⅲ)complex containing(4-Methyl-2-oxo-2 H-chromen-7-yloxy)-acetic acid moiety(CMMC)was synthesized,characterized,and confirmed as antitumor agent and fluorescent *** spectroscopic measurements of Eu(Ⅲ)in the presence of CMMC were obtained in different *** results show that the strongest Eu(Ⅲ)emission bands were monitored in iso-propyl alcohol while the weakest Eu(Ⅲ)emission band was observed in *** interaction of Eu(Ⅲ)-(CMMC)2 complex with dNA was monitored using absorption and emission *** fluorescence titration measurements,the binding constants of dNA with Eu(Ⅲ)-(CMMC)_2 complex were found to be 1.04×10~5 L·mol^(-1) in Tris-HCl and 1.17×10~7 L·mol^(-1) in dMSO-Tris-HCl buffer(9∶1 V/V).Hypochromism was observed from the absorption titration experiment which indicates the intercalation of Eu(Ⅲ)-complex between the base pair of *** result further confirmed by fluorescent Ethidium bromide displacement *** fluorescence calibration curve was used for the determination of dNA with LOd of 1.2 ng in dMSO-Tris-HCl buffer(9∶1 V/V)and 5 ng in Tris-HCl *** preliminary antitumor investigation shows promising cytotoxicity against MdA-MB-231,MCF-7(mammary cancer),and PC-3(prostate carcinoma)cell lines with IC50 values of 40.63,25.42 and 30.25μmol·L^(-1),respectively.
Semen analysis(sa)remains the cornerstone of male infertility evaluation and should ideally be performed by an accredited andrology laboratory or in vitro fertilization(IVF)clinics based on the standards defined by th...
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Semen analysis(sa)remains the cornerstone of male infertility evaluation and should ideally be performed by an accredited andrology laboratory or in vitro fertilization(IVF)clinics based on the standards defined by the World Health Organization(WHO)for the Examination and Processing of Human Semen and in accordance with the International Organization for Standardization’s Basic Semen Examination on Specification and Test Methods.
This paper presents the development of a new polymer-ceramic composite material for use in injection molding *** material consists of palm oil fly ash(POFA) in a high density polyethylene(HdPE) *** this study,the effe...
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This paper presents the development of a new polymer-ceramic composite material for use in injection molding *** material consists of palm oil fly ash(POFA) in a high density polyethylene(HdPE) *** this study,the effect of POFA was investigated as a filler material in polymer-ceramic matrix composite and HdPE was chosen as a matrix *** detailed formulations of mixing ratio with various combinations of the new polymer-ceramic composite are investigated *** on the result obtained,it was found that,the weight percentage increment of POFA filler affected the flexural and hardness *** work represents a major development in recycling of waste material from palm oil empty fruit bunch out of the refinery to produce polymer/ceramic matrix composite.
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