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Identification of the Technical Condition of Induction Motor Groups by the Total Energy Flow

ENERGIES 2021年第20期14卷 6677页

作者： Koteleva, N. I. Korolev, N. A. Zhukovskiy, Y. L. St Petersburg Min Univ Educ Res Ctr Digital Technol St Petersburg 191106 Russia

The paper discusses the method of identifying the technical condition of induction motors by classifying the energy data coming from the main common power bus. The work shows the simulation results of induction motor operation. The correlation between occurring defects and current diagrams is presented. The developed simulation model is demonstrated. The general algorithm for conducting experiments is described. Five different experiments to develop an algorithm for the classification are conducted: determination of the motors number in operation with different power;determination of the motors number in operation with equal power;determination of the mode and load of induction electric motor;determination of the fault and its magnitude with regard to operation and load of induction motor;determination of the fault and its magnitude with regard to operation and load of induction motor with regard to non-linear load in the flow. The article also presents an algorithm for preprocessing data to solve the classification problem. In addition, the classification results are shown and recommendations for testing and using the classification algorithm on a real object are made.

关键词： classification algorithm induction electric motor simulation model the coefficient of electromagnetic momentum ripple current harmonic distortion factor

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Inferring ethnicity from mitochondrial DNA sequence

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BMC proceedings 2011年第2期5 Suppl 2卷 S11页

作者： Chih Lee Ion I Măndoiu Craig E Nelson Computer Science and Engineering Department University of Connecticut Storrs CT USA. chihlee@engr.uconn.edu.

BACKGROUND:The assignment of DNA samples to coarse population groups can be a useful but difficult task. One such example is the inference of coarse ethnic groupings for forensic applications. Ethnicity plays an important role in forensic investigation and can be inferred with the help of genetic markers. Being maternally inherited, of high copy number, and robust persistence in degraded samples, mitochondrial DNA may be useful for inferring coarse ethnicity. In this study, we compare the performance of methods for inferring ethnicity from the sequence of the hypervariable region of the mitochondrial genome. RESULTS:We present the results of comprehensive experiments conducted on datasets extracted from the mtDNA population database, showing that ethnicity inference based on support vector machines (SVM) achieves an overall accuracy of 80-90%, consistently outperforming nearest neighbor and discriminant analysis methods previously proposed in the literature. We also evaluate methods of handling missing data and characterize the most informative segments of the hypervariable region of the mitochondrial genome. CONCLUSIONS:Support vector machines can be used to infer coarse ethnicity from a small region of mitochondrial DNA sequence with surprisingly high accuracy. In the presence of missing data, utilizing only the regions common to the training sequences and a test sequence proves to be the best strategy. Given these results, SVM algorithms are likely to also be useful in other DNA sequence classification applications.

关键词： Support Vector Machine Linear Discriminant Analysis classification algorithm Hypervariable Region Published Dataset

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Designing a Model to Study Data Mining in Distributed Environment

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Journal of Data Analysis and Information Processing 2021年第1期9卷 23-29页

作者： Md. Abadur Rahman Masud Karim School of Business & Tourism Southern Cross University Sydney Australia Department of Computer Science & Engineering Daffodil Institute of Science & Technology Dhaka Bangladesh

To make business policy, market analysis, corporate decision, fraud detection, etc., we have to analyze and work with huge amount of data. Generally, such data are taken from different sources. Researchers are using data mining to perform such tasks. Data mining techniques are used to find hidden information from large data source. Data mining is using for various fields: Artificial intelligence, Bank, health and medical, corruption, legal issues, corporate business, marketing, etc. Special interest is given to associate rules, data mining algorithms, decision tree and distributed approach. Data is becoming larger and spreading geographically. So it is difficult to find better result from only a central data source. For knowledge discovery, we have to work with distributed database. On the other hand, security and privacy considerations are also another factor for de-motivation of working with centralized data. For this reason, distributed database is essential for future processing. In this paper, we have proposed a framework to study data mining in distributed environment. The paper presents a framework to bring out actionable knowledge. We have shown some level by which we can generate actionable knowledge. Possible tools and technique for these levels are discussed.

关键词： Data Mining Distributed Database Knowledge Discovery classification algorithm

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Network embedding framework for driver gene discovery by combining functional and structural information

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BMC GENOMICS 2023年第1期24卷 426-426页

作者： Chu, Xin Guan, Boxin Dai, Lingyun Liu, Jin-xing Li, Feng Shang, Junliang Qufu Normal Univ Sch Comp Sci Rizhao 27826 Peoples R China

Comprehensive analysis of multiple data sets can identify potential driver genes for various cancers. In recent years, driver gene discovery based on massive mutation data and gene interaction networks has attracted increasing attention, but there is still a need to explore combining functional and structural information of genes in protein interaction networks to identify driver genes. Therefore, we propose a network embedding framework combining functional and structural information to identify driver genes. Firstly, we combine the mutation data and gene interaction networks to construct mutation integration network using network propagation algorithm. Secondly, the struc2vec model is used for extracting gene features from the mutation integration network, which contains both gene's functional and structural information. Finally, machine learning algorithms are utilized to identify the driver genes. Compared with the previous four excellent methods, our method can find gene pairs that are distant from each other through structural similarities and has better performance in identifying driver genes for 12 cancers in the cancer genome atlas. At the same time, we also conduct a comparative analysis of three gene interaction networks, three gene standard sets, and five machine learning algorithms. Our framework provides a new perspective for feature selection to identify novel driver genes.

关键词： Driver gene Gene interaction network Network embedding Mutation data classification algorithm

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Predicting Employee Turnover in IT Industries using Correlation and Chi-Square Visualization

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INTERNATIONAL JOURNAL OF ADVANCED COMPUTER SCIENCE AND APPLICATIONS 2022年第12期13卷 71-75页

作者： Priambodo, Bagus Jumaryadi, Yuwan Rahayu, Sarwati Ani, Nur Ratnasari, Anita Salamah, Umniy Putra, Zico Pratama Otong, Muhamad Univ Mercu Buana Fac Comp Sci Jakarta Indonesia Univ Nusa Mandiri Fac Informat Technol Jakarta Indonesia Univ Sultan Ageng Tirtayasa Dept Elect Engn Serang Indonesia

Employee turnover in the IT industry is among the highest compared to other industries. Knowing factors that influence the turnover may help reduce this issue in future. One of these factors is job satisfaction, which are composed of two important factors, status and seniority. In this study, the correlation and chi-square visualization are utilized to determine the factors that affect employee turnover. The experiment was carried out to predict turnover using a private IT consultant dataset comparing three classification algorithms (decision tree, Naive Bayes, and Random Forest). The result shows that job duration and positioning are factors that influence employee turnover in a software company.

关键词： Employee turnover turnover factors chi-square classification algorithm

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Machine learning-based processing of unbalanced data sets for computer algorithms

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OPEN COMPUTER SCIENCE 2023年第1期13卷

作者： Zhou, Qingwei Qi, Yongjun Tang, Hailin Wu, Peng Guangdong Baiyun Univ Fac Megadata & Comp Guangzhou 510450 Guangdong Peoples R China Mongolian Univ Sci & Technol Sch Informat & Commun Technol Ulan Bator 13341 Mongolia Sichuan Tourism Univ Sch Informat & Engn Chengdu 610000 Sichuan Peoples R China

The rapid development of technology allows people to obtain a large amount of data, which contains important information and various noises. How to obtain useful knowledge from data is the most important thing at this stage of machine learning (ML). The problem of unbalanced classification is currently an important topic in the field of data mining and ML. At present, this problem has attracted more and more attention and is a relatively new challenge for academia and industry. The problem of unbalanced classification involves classifying data when there is insufficient data or severe category distribution deviations. Due to the inherent complexity of unbalanced data sets, more new algorithms and tools are needed to effectively convert a large amount of raw data into useful information and knowledge. Unbalanced data set is a special case of classification problem, in which the distribution between classes is uneven, and it is difficult to classify data accurately. This article mainly introduces the research on the processing method of computer algorithms based on the processing method of unbalanced data sets based on ML, aiming to provide some ideas and directions for the processing of computer algorithms based on unbalanced data sets based on ML. This article proposes a research strategy for processing unbalanced data sets based on ML, including data preprocessing, decision tree data classification algorithm, and C4.5 algorithm, which are used to conduct research experiments on processing methods for unbalanced data sets based on ML. The experimental results in this article show that the accuracy rate of the decision tree C4.5 algorithm based on ML is 94.80%, which can be better used for processing unbalanced data sets based on ML.

关键词： machine learning unbalanced data sets classification algorithm data processing computer algorithm decision tree classification

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Role of different types of RNA molecules in the severity prediction of SARS-CoV-2 patients

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PATHOLOGY RESEARCH AND PRACTICE 2023年 242卷 154311页

作者： Jeyananthan, Pratheeba Univ Jaffna Fac Engn Jaffna Sri Lanka

SARS-CoV-2 pandemic is the current threat of the world with enormous number of deceases. As most of the countries have constraints on resources, particularly for intensive care and oxygen, severity prediction with high accuracy is crucial. This prediction will help the medical society in the selection of patients with the need for these constrained resources. Literature shows that using clinical data in this study is the common trend and molecular data is rarely utilized in this prediction. As molecular data carry more disease related information, in this study, three different types of RNA molecules (lncRNA, miRNA and mRNA) of SARS-COV-2 patients are used to predict the severity stage and treatment stage of those patients. Using seven different machine learning al-gorithms along with several feature selection techniques shows that in both phenotypes, feature importance selected features provides the best accuracy along with random forest classifier. Further to this, it shows that in the severity stage prediction miRNA and lncRNA give the best performance, and lncRNA data gives the best in treatment stage prediction. As most of the studies related to molecular data uses mRNA data, this is an interesting finding.

关键词： Severity prediction classification algorithm lncRNA miRNA and mRNA COVID-19 molecular data Feature selection Treatment stage

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A DDoS Attack Mitigation Framework for IoT Networks using Fog Computing

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Procedia Computer Science 2021年 182卷 13-20页

作者： Muhammad Aminu Lawal Riaz Ahmed Shaikh Syed Raheel Hassan Department of Computer Science Faculty of Computing and Information Technology King Abdulaziz University Jeddah 21589 Saudi Arabia

The advent of 5G which strives to connect more devices with high speed and low latencies has aided the growth IoT network. Despite the benefits of IoT, its applications in several facets of our lives such as smart health, smart homes, smart cities, etc. have raised several security concerns such as Distributed Denial of Service (DDoS) attacks. In this paper, we propose a DDoS mitigation framework for IoT using fog computing to ensure fast and accurate attack detection. The fog provides resources for effective deployment of the mitigation framework, this solves the deficits in resources of the resource-constrained IoT devices. The mitigation framework uses an anomaly-based intrusion detection method and a database. The database stores signatures of previously detected attacks while the anomaly-based detection scheme utilizes k-NN classification algorithm for detecting the DDoS attacks. By using a database containing the attack signatures, attacks can be detected faster when the same type of attack is executed again. The evaluations using a DDoS based dataset show that the k-NN classification algorithm proposed for our framework achieves a satisfactory accuracy in detecting DDoS attacks.

关键词： Internet of Things (IoT) Anomaly mitigation DDoS Fog computing classification algorithm

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OCR for devanagari numerals using zonal histogram of angle

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JOURNAL OF STATISTICS & MANAGEMENT SYSTEMS 2017年第4期20卷 519-534页

作者： Johnson, Kent Gourav, Kumar Gaurav Rudrapal, Dwijen Debnath, Sanjib Natl Inst Technol Agartala Dept Comp Sci & Engn Jirania 799046 Tripura India

Optical Character Recognition (OCR) system is used to generate the textual representation of handwritten or printed text. Many research works are going on in the field of OCR over the past few decades for most of the Indian scripts. Devanagari one of the most spoken languages in the world as well as India. Lack of a robust OCR system for Devanagari script is still there even after so much research. The aim of this paper is to make an OCR that could classify handwritten Devanagari numerals. This paper proposes an OCR based on Histogram of the angle made by a dark pixel with the zonal center of mass. This feature bags the angle made by each dark pixel in a zone about its center of mass. This newly extracted feature was used to train various classification algorithms like K-Nearest Neighbor, SVM, Linear SVM, Random Forest, Decision Tree, Gradient Boosting, Gaussian Naive Bayes. We reported an efficiency of each algorithm based on the new feature. Our experiment result shows that the Random Forest Model outperforms over the other algorithms and reports an efficiency of 92.57%.

关键词： Devanagari Numeral OCR Angular Histogram Machine learning algorithms Feature extraction classification algorithm

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Diabetes Prediction Using Enhanced SVM and Deep Neural Network Learning Techniques: An algorithmic Approach for Early Screening of Diabetes

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INTERNATIONAL JOURNAL OF HEALTHCARE INFORMATION SYSTEMS AND INFORMATICS 2021年第4期16卷 1页

作者： Nagaraj, P. Deepalakshmi, P. Kalasalingam Acad Res & Educ Dept Comp Sci & Engn Sch Comp Krishnankoil India Kalasalingam Acad Res & Educ Krishnankoil India

Diabetes, caused by the rise in level of glucose in the blood, has many devices to identify it from blood samples. Diabetes, when unnoticed, may bring many serious diseases like heart attack and kidney disease. In this way, there is a requirement for solid research and learning model enhancement in the field of gestational diabetes identification and analysis. SVM is one of the powerful classification models in machine learning, and similarly, deep neural networks are powerful under deep learning models. In this work, the authors applied enhanced support vector machine and deep learning model deep neural network for diabetes prediction and screening. The proposed method uses a deep neural network obtaining its input from the output of enhanced support vector machine, thus having a combined efficacy. The dataset considered includes 768 patients' data with eight major features and a target column with result "Positive" or "Negative." Experiment is done with Python, and the outcome of the demonstration shows that the deep learning model gives more efficiency for diabetes prediction.

关键词： classification algorithm Deep Learning Model Deep Neural Networks Diabetes Machine Learning Support Vector Machine

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