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Machine Learning and Synthetic Minority Oversampling Techniques for Imbalanced Data: Improving Machine Failure Prediction

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Computers, Materials & Continua 2023年第6期75卷 4821-4841页

作者： Yap Bee Wah Azlan Ismail Nur Niswah Naslina Azid Jafreezal Jaafar Izzatdin Abdul Aziz Mohd Hilmi Hasan Jasni Mohamad zain Institute for Big Data Analytics and Artificial Intelligence(IBDAAI) Kompleks Al-KhawarizmiUniversiti Teknologi MARA(UiTM)Shah Alam40450SelangorMalaysia School of Computing Sciences College of ComputingInformatics and MediaUniversiti Teknologi MARA(UiTM)40450Shah AlamSelangorMalaysia Mathematical Sciences Studies College of ComputingInformatics and MediaUniversiti Teknologi MARA(UiTM)Kelantan BranchMachang CampusBukit Ilmu18500MachangKelantan Darul NaimMalaysia Centre for Research in Data Science(CeRDaS) Department of Computer and Information Sciences(DCIS)Universiti Teknologi PETRONAS(UTP)Seri Iskandar32610PerakMalaysia UNITAR International University Jalan SS6/3SS6Petaling Jaya47301SelangorMalaysia

Prediction of machine failure is challenging as the dataset is often imbalanced with a low failure *** common approach to han-dle classification involving imbalanced data is to balance the data using a sampling approach such as random undersampling,random oversampling,or Synthetic Minority Oversampling Technique(SMOTE)*** paper compared the classification performance of three popular classifiers(Logistic Regression,Gaussian Naïve Bayes,and Support Vector Machine)in predicting machine failure in the Oil and Gas *** original machine failure dataset consists of 20,473 hourly data and is imbalanced with 19945(97%)‘non-failure’and 528(3%)‘failure data’.The three independent variables to predict machine failure were pressure indicator,flow indicator,and level *** accuracy of the classifiers is very high and close to 100%,but the sensitivity of all classifiers using the original dataset was close to *** performance of the three classifiers was then evaluated for data with different imbalance rates(10%to 50%)generated from the original data using SMOTE,SMOTE-Support Vector Machine(SMOTE-SVM)and SMOTE-Edited Nearest Neighbour(SMOTE-ENN).The classifiers were evaluated based on improvement in sensitivity and *** showed that the sensitivity of all classifiers increases as the imbalance rate *** with radial basis function(RBF)kernel has the highest sensitivity when data is balanced(50:50)using SMOTE(Sensitivitytest=0.5686,Ftest=0.6927)compared to Naïve Bayes(Sensitivitytest=0.4033,Ftest=0.6218)and Logistic Regression(Sensitivitytest=0.4194,Ftest=0.621).Overall,the Gaussian Naïve Bayes model consistently improves sensitivity and F-measure as the imbalance ratio increases,but the sensitivity is below 50%.The classifiers performed better when data was balanced using SMOTE-SVM compared to SMOTE and SMOTE-ENN.

关键词： Machine failure machine learning imbalanced data SMOTE classification

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Effect of lyophilized aqueous leaf extract of Aquilaria subintegra on aphrodisiacproperties in mice

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Asian pacific Journal of Reproduction 2019年第4期8卷 167-173页

作者： Nur Hidayat Che Musa Haniza Hanim Mohd zain Mohammed Muayad TA Husni Ibrahim Biology Department Faculty of Science and MathematicsSultan Idris Education University35900 Tanjong MalimPerak Darul RidzuanMalaysia Environmental Research Centre University of TechnologyBaghdadIraq

Objective: To investigate the effects of Aquilaria subintegra leaf aqueous extracts on the aphrodisiac properties including sexual behaviour, testosterone level, percentage of pregnancy, number of offspring and male to female ratio of offspring in ICR mice. Methods: In this experiment, each male cohabitated with one female in a polysulfone cage. 30 ICR male mice were divided into 6 groups that received normal saline (the control group), 50 mg/kg, 100 mg/kg, 200 mg/kg, 500 mg/kg, and 1000 mg/kg body weight of Aquilaria subintegra leaf aqueous extracts orally for 21 days consecutively. Sexual behavior, percentage of pregnancy, number of offspring and male to female ratio of offspring in ICR mice were measured according to the established methods. Testosterone level was measured by using enzyme-linked immunosorbent assay. Results: Mice that received Aquilaria subintegra leaf aqueous extracts at 50 mg/kg body weight (day 0) had significantly higher mount frequency as compared to the control group;groups treated with 100, 500, 1000 mg/kg body weight extracts produced a greater number of offsprings when compared to the control group. All aphrodisiac parameters were similar between the treatment groups and the control group, indicating that Aquilaria subintegra leaf aqueous extract did not significantly alter the aphrodisiac parameters. Conclusions: Aquilaria subintegra leaf aqueous extracts have no effect on the aphrodisiac properties, but could increase the breeding rate in mice.

关键词： Aquilaria subintegra Aphrodisiac Sexual behaviour Testosterone Offspring

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A modified harmony search algorithm and its applications in weighted fuzzy production rule extraction

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Frontiers of Information Technology & Electronic Engineering 2023年第11期24卷 1574-1590页

作者： Shaoqiang YE Kaiqing ZHOU Azlan Mohd zain Fangling WANG Yusliza YUSOFF School of Communication and Electronic Engineering Jishou UniversityJishou 416000China Faculty of Computing Universiti Teknologi MalaysiaSkudai 81310JohorMalaysia

Harmony search(HS)is a form of stochastic meta-heuristic inspired by the improvisation process of *** this study,a modified HS with a hybrid cuckoo search(CS)operator,HS-CS,is proposed to enhance global search ability while avoiding falling into local ***,the randomness of the HS pitch disturbance adjusting method is analyzed to generate an adaptive inertia weight according to the quality of solutions in the harmony memory and to reconstruct the fine-tuning bandwidth *** is to improve the efficiency and accuracy of HS algorithm ***,the CS operator is introduced to expand the scope of the solution space and improve the density of the population,which can quickly jump out of the local optimum in the randomly generated harmony and update ***,a dynamic parameter adjustment mechanism is set to improve the efficiency of *** theorems are proved to reveal HS-CS as a global convergence meta-heuristic *** addition,12 benchmark functions are selected for the optimization solution to verify the performance of *** analysis shows that HS-CS is significantly better than other algorithms in optimizing high-dimensional problems with strong robustness,high convergence speed,and high convergence *** further verification,HS-CS is used to optimize the back propagation neural network(BPNN)to extract weighted fuzzy production *** results show that the BPNN optimized by HS-CS can obtain higher classification accuracy of weighted fuzzy production ***,the proposed HS-CS is proved to be effective.

关键词： Harmony search algorithm Cuckoo search algorithm Global convergence Function optimization Weighted fuzzy production ruleextraction

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A Transfer Learning Based Approach for COVID-19 Detection Using Inception-v4 Model

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Intelligent Automation & Soft Computing 2023年第2期35卷 1721-1736页

作者： Ali Alqahtani Shumaila Akram Muhammad Ramzan Fouzia Nawaz Hikmat Ullah Khan Essa Alhashlan Samar MAlqhtani Areeba Waris zain Ali College of Computer Science and Information Systems Najran UniversityNajran61441Saudi Arabia Department of Computer Science and Information Technology University of SargodhaSargodha40100Pakistan School of Systems and Technology University of Management and TechnologyLahore54782Pakistan Department of Computer Science COMSATS University IslamabadWah CampusIslamabad47040Pakistan Department of Medical Imaging King Khaled HospitalNajran61441Saudi Arabia Electrical&Electronics Engineering Department Universiti TeknologiPetronas31750Malaysia Department of Electrical Engineering HITEC UniversityTaxila47080Pakistan

Coronavirus(COVID-19 or SARS-CoV-2)is a novel viral infection that started in December 2019 and has erupted rapidly in more than 150 *** rapid spread of COVID-19 has caused a global health emergency and resulted in governments imposing lock-downs to stop its *** is a signiﬁ-cant increase in the number of patients infected,resulting in a lack of test resources and kits in most *** overcome this panicked state of affairs,researchers are looking forward to some effective solutions to overcome this situa-tion:one of the most common and effective methods is to examine the X-radiation(X-rays)and computed tomography(CT)images for detection of ***-ever,this method burdens the radiologist to examine each ***,to reduce the burden on the radiologist,an effective,robust and reliable detection system has been developed,which may assist the radiologist and medical specia-list in effective detecting of *** proposed a deep learning approach that uses readily available chest radio-graphs(chest X-rays)to diagnose COVID-19 *** proposed approach applied transfer learning to the Deep Convolutional Neural Network(DCNN)model,Inception-v4,for the automatic detection of COVID-19 infection from chest X-rays *** dataset used in this study contains 1504 chest X-ray images,504 images of COVID-19 infection,and 1000 normal images obtained from publicly available medical *** results showed that the proposed approach detected COVID-19 infection with an overall accuracy of 99.63%.

关键词： COVID-19 transfer learning deep learning artiﬁcial intelligence chest X-rays machine learning

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Forensics Issues in Cloud Computing

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Journal of Computer and Communications 2016年第10期4卷 63-69页

作者： Aqil Burney Muhammad Asif zain Abbas Department of ASRM College of Computer Science and Information Systems IoBM Karachi Pakistan Department of Computer Science & Information Technology NEDUET Karachi Pakistan Department of Computer Science (UBIT) University of Karachi Karachi Pakistan

Cloud computing is an emerging technology that is being widely adopted throughout the world due to its ease-of-use. Organizations of all types can use it without pre-requisites such as IT infra-structure, technical skills, managerial overload, storage capacity, processing power, and data recovery or privacy setup. It can be availed by all clients as per their needs, expectations and budget. However, cloud computing introduces new kinds of security vulnerabilities that need to be ad-dressed. Traditional “Computer Forensics” deals with detection, preemption and prevention of IT triggered frauds and crimes but it lacks the ability to deal with cybercrimes pertaining to cloud computing environment. In this paper, we focus on forensics issues in cloud computing, assess limitations of forensic team and present the obstacles faced during investigation.

关键词： Computer Forensics Cloud Computing Cybercrimes Cloud Security Cloud Service Provider

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New photo-thermal-synthesized polymer for self-compacting concrete to increase productivity, minimize pollution, and eliminate steam curing in precast concrete

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Journal of Harbin Institute of Technology(New Series) 2006年第5期13卷 518-524页

作者： F. C. Lai M. F. Mohd zain 王宝民 K. C. Lee Dept. of Civil and Structural Engineering Faculty of Engineering Universiti Kebangsaan Malaysia 43600 U.K.M Bangi Selangor Darul Ehsan Malaysia Dept. of Civil Engineering Dalian University of Technology Dalian 116024 China Sime Darby Technology Petaling Jaya Kuala Lumpur Malaysia

The objective in this study is to apply the sustainable chemistry and photo-thermal synthesis technology to produce the sustainable eco-superplasticiser for the sustainable high performance SCC concrete especially in hot tropical countries. A photo-thermal synthesized eco-superplasticiser （PSES） was produced by using photo-thermal catalyst in a solar chemical reactor. In this preliminary study, an unique high early strength of SCC concrete has been successfully produced by imposing an unique proportion of the photo-thermal-synthesized eco- Superplasticiser （PSES）, local fly ash, sand and aggregate. The SCC concrete is preliminary tried in the precast concrete product to produce the complicated geometries as Tunnel segment, U-shape beam, and Box girder which have the critical reinforcement and thin section concrete. Surprisingly, this SCC provide the benefits as eliminating steaming energy, increased productivity, and minimize pollution. These unique properties of sustainable SCC concrete can not be achieved by the convention concrete by using ligno, naphthalene and melamine base superplasficiser. The synthesized sustainable eco-superplasticiser is a perfect choice to fully utilized the renewable energy and improve the concrete working environment.

关键词： photo-chemical synthesis sustainable self-compacting concrete eco-superplasticiser eliminate steaming renewable solar energy

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Epidemiology and immunodiagnostics of Strongyloides stercoralis infections among migrant workers in Malaysia

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Asian Pacific Journal of Tropical Medicine 2019年第6期12卷 250-257页

作者： Norhidayu Sahimin Yvonne A.L.Lim Rahmah Noordin Muhammad Hafiznur Yunus Norsyahida Arifin Jerzy Marian Behnke Siti Nursheena Mohd zain Tropical Infectious Diseases Research and Education Centre(TIDREC) University of Malaya50603 Kuala LumpurMalaysia Department of Parasitology Faculty of MedicineUniversity of MalayaKuala Lumpur.Malaysia Institute for Research in Molecular Medicine(INFORMM) Universiti Sains Malaysia11800 Pulau PinangMalaysia School of Life Sciences University of NottinghamUniversity ParkNottinghamNG7 2RDUK Institute of Biological Science Faculty of ScienceUniversity of MalayaKuala LumpurMalaysia

Objective: To investigate the status of Strongyloides(S.) stercoralis infections among migrant workers in Malaysia for the first time and identify risk ***: Four diagnostic methods were employed for the detection of S. stercoralis including microscopy, enzyme-linked immunosorbent assay(ELISA) using a commercial kit, ELISA using the rSs1a antigen and polymerase chain reaction(PCR). Low and semi-skilled workers from five working sectors(i.e. manufacturing, food service, agriculture and plantation, construction and domestic service) were tested on a voluntary basis. Results: The overall seroprevalence of S. stercoralis from 483 workers employing the ELISA commercial kit for IgG was 35.8%(n=173;95% CI: 31.5%-40.1%) whereas seroprevalence using the rSs1a-ELISA was 13.0%(n=63;95% CI: 10.0%-16.0%). Cross tabulation between the ELISA commercial kit and rSs1a-ELISA showed that only 6.4%(n=31;95% CI: 4.2%-8.6%) of the samples were positive in both tests. Microscopic examination of all 388 fecal samples were negative;however subsequent testing by a nested PCR against DNA from the same samples successfully amplified DNA from three male subjects(0.8%;3/388). Male workers, India and Myanmar nationality, food service occupation and those living in the hostel were statistically significant with seroprevalence(P<0.005). Conclusion: This is the first report on the epidemiology of S. stercoralis infections among the migrant workers in Malaysia. Our results highlight the importance of using appropriate diagnostic tools for detection. The presence of anti-S. stercoralis antibodies in the study population calls for improvements in personal hygiene and sanitation standards among migrant workers in Malaysia through control strategies including health education campaigns and programs aimed at increasing awareness and healthy behaviors.

关键词： Strongyloides stercoralis Migrant workers Microscopic examination Serological analysis PCR

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Effects of left ventricular assist device on pulmonary functions and pulmonary hemodynamics:A meta-analysis

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World Journal of Cardiology 2020年第11期12卷 550-558页

作者： Waqas Ullah Casey Meizinger zain Ali Ankur Panchal Rehan Saeed Donald C Haas Eduardo Rame Department of Internal Medicine Abington Jefferson HealthAbingtonPA 19001United States Department of Internal Medicine University of PittsburghPittsburghPA 15213United States Department of Cardiology Abington Jefferson HealthAbingtonPA 19001United States Department of Cardiology Thomas Jefferson UniversityAbingtonPA 19001United States

BACKGROUND Given current evidence,the effect of left ventricular assist device(LVAD)implantation on pulmonary function tests remains *** To better understand the factors contributing to the changes seen on pulmonary function testing and the correlation with pulmonary hemodynamics after LVAD *** Electronic databases were queried to identify relevant *** summary effect size was estimated as a difference of overall means and standard deviation on a random-effects *** A total of four studies comprising 219 patients were *** overall mean forced expiratory volume in one second(FEV1),forced vital capacity(FVC)and diffusion lung capacity of carbon monoxide(DLCO)after LVAD implantation were significantly lower by 0.23 L(95%CI:0.11-0.34,P=00002),0.18 L(95%CI:0.03-0.34,P=0.02),and 3.16 mmol/min(95%CI:2.17-4.14,P<0.00001),*** net post-LVAD mean value of the cardiac index was significantly higher by 0.49 L/min/m2(95%CI:0.31-0.66,P<0.00001)compared to pre-LVAD *** pulmonary capillary wedge pressure and pulmonary vascular resistance were significantly reduced after LVAD implantation by 8.56 mmHg(95%CI:3.78-13.35,P=0.0004),and 0.83 Woods U(95%CI:0.11-1.55,P=0.02),*** was no significant difference observed in the right atrial pressure after LVAD implantation(0.61 mmHg,95%CI:-2.00 to 3.32,P=0.65).Overall findings appear to be driven by studies using HeartMateII *** LVAD implantation might be associated with a significant reduction of the spirometric measures,including FEV1,FVC,and DLCO,and an overall improvement of pulmonary hemodynamics.

关键词： Pulmonary function tests Left ventricular assist device Spirometry Ventricular assist device

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Angiotensin converting enzyme inhibitor associated spontaneous herniation of liver mimicking a pleural mass:A case report

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World Journal of Hepatology 2022年第4期14卷 854-859页

作者： Sameer Saleem Tebha zain Ali Zaidi Sehrish Sethar Muhammad Asif Abbas Virk Muhammad Nadeem Yousaf Department of Neurosurgery and Neurology Jinnah Medical and Dental CollegeKarachi 75600SindhPakistan Department of Medicine Jinnah Medical and Dental CollegeKarachi 75600SindhPakistan Department of Radiology Jinnah Medical and Dental CollegeKarachi 75600SindhPakistan Department of Medicine Division of GastroenterologyWell Span York HospitalYorkPA 17403United States Department of Medicine Division of Gastroenterology and HepatologyUniversity of MissouriColumbiaMO 65212United States

BACKGROUND Spontaneous diaphragmatic herniation of the liver is a rare *** may mimic pulmonary mass especially in the absence of *** is a common side effect of angiotensin converting enzyme(ACE)inhibitors that may cause diaphragmatic rupture due to a sudden increase in trans-diaphragmatic *** present a case of ACE-inhibitor associated spontaneous herniation of the liver mimicking pleural *** SUMMARY An 80-year-old woman presented with dry cough for 1 mo and sudden onset of cramping abdominal pain for 1 *** denied history of trauma,prior surgeries,smoking,alcohol or illicit drug *** has a history of diabetes and was started on an ACE inhibitor 6 mo ago for the management of *** was remarkable for right upper quadrant *** work-up was *** X-ray showed a right lower lung opacity suspecting right pleural *** computed tomography scan ruled out pleural mass,however,revealed herniated right lobe of the liver(3.9 cm×3.6 cm×3.4 cm)into the thoracic cavity through the posterolateral diaphragmatic *** repair of the diaphragmatic defect was performed and the ACE inhibitor was ***’symptoms had completely resolved on *** ACE inhibitor-associated cough may cause diaphragmatic liver herniation mimicking pleural *** diagnosis,surgical repair and addressing the triggering factors improve patients’outcomes.

关键词： Diaphragmatic hernia Liver herniation ACE-inhibitors Cough Non-traumatic diaphragmatic hernia Case report

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Revolution in the diagnosis and management of hepatitis C virus infection in current era

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World Journal of Hepatology 2022年第4期14卷 647-669页

作者： Farina M Hanif zain Majid Nasir Hassan Luck Abbas Ali Tasneem Syed Muddasir Laeeq Muhammed Mubarak Department of Hepatogastroenterology Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan Department of Histopathology Sindh Institute of Urology and TransplantationKarachi 74200SindhPakistan

Chronic hepatitis C virus(HCV)infection is a major global public health problem,particularly in developing part of the *** advances have been made in the early diagnosis and treatment of the *** management has been particularly revolutionized during the past two *** this review,we summarize the major advances in the diagnostic and management armamentarium for chronic HCV *** focus of the present review is on the newer directly acting anti-viral agents,which have revolutionized the management of chronic HCV *** of uncomplicated chronic HCV infection and of specific complications and special at-risk populations of patients will be covered in *** the advent and approval of highly effective and well tolerable oral agents,still many challenges remain,particularly the affordability,the equitable distribution and access to later *** World Health Organization aims to eliminate viral hepatitis including HCV by 2030 since its poses a major public health *** is an urgent need to ensure uniform and early access to diagnostic and therapeutic facilities throughout the world if the later goal has to be realized.

关键词： Hepatitis C virus Interferons Diagnosis Management Directly acting antiviral agents

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