Wyniki wyszukiwania - BazTech

1

Machine learning to diagnose breast cancer

Ismaeel Ghassan Ahmad

Przegląd Elektrotechniczny

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2023

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R. 99, nr 1

10--12

EN

As the number of breast cancer diseases is increasing rapidly every year, new technologies are utilized to predict and diagnose this disease for better women's lives worldwide. The development of Machine Learning can be utilized to contribute in this sense and help in the early diagnosis of breast cancer. This paper aims to predict and diagnose breast cancer using Machine Learning techniques such as support vector Machine (SVM) and Decision -tree and Nearest neighbour (KNN). The results show the out performance of SVM over the other methods. These methods can be very helpful to predict the breast cancer disease ahead of time.

PL

Ponieważ liczba zachorowań na raka piersi gwałtownie rośnie z roku na rok, nowe technologie są wykorzystywane do przewidywania i diagnozowania tej choroby w celu poprawy życia kobiet na całym świecie. Rozwój uczenia maszynowego może być wykorzystany do wniesienia wkładu w tym sensie i pomocy we wczesnej diagnozie raka piersi. Niniejszy artykuł ma na celu przewidywanie i diagnozowanie raka piersi przy użyciu technik uczenia maszynowego, takich jak maszyna wektora nośnego (SVM) oraz drzewo decyzyjne i najbliższy sąsiad (KNN). Wyniki pokazują wydajność SVM w porównaniu z innymi metodami. Metody te mogą być bardzo pomocne w przewidywaniu zgonów na raka piersi z wyprzedzeniem.

2

The application of machine learning on the sensors of smartphones to detect falls in real-time

Benba Achraf, Akki Mouna, Sandabad Sara

Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska

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2023

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T. 13, nr 2

50--55

EN

With the increasing prevalence of smartphones, they now come equipped with a multitude of sensors such as GPS, microphones, cameras, magnetometers, accelerators, and more, which can simplify our daily lives. When it comes to healthcare, smartphones can become indispensable.The detection of geriatric falls is crucial as even the slightest injury can havefatal consequences. Therefore, we proposed the use of accelerometers in our research to detect falls in the elderly. Our project involved the development of an automated, continuous, and reliable monitoring system that would generate a list of elderly people at risk of falling and present it on a webpage for emergency services. This approach aimed to minimize the long-term impacts and save lives promptly. We started by developing a mobile application and used MATLAB to classify the falls as either "fall" or "not fall." Finally, we created a webpage that would facilitate communication between the mobile application and MATLAB.

PL

Wraz z rosnącąpopularnością smartfonów są one wyposażone w wiele czujników, takich jak GPS, mikrofony, kamery, magnetometry, akceleratory i inne, które mogą uprościć nasze codzienne życie. Jeśli chodzi o opiekę zdrowotną, smartfony mogą stać się niezastąpione. Wykrywanie upadków geriatrycznych ma kluczowe znaczenie, ponieważ nawet najmniejszy uraz może mieć śmiertelne konsekwencje. Dlatego zaproponowanowykorzystanie w naszych badaniach akcelerometrów do wykrywania upadków osób starszych. Nasz projekt polegał na opracowaniu zautomatyzowanego, ciągłego i niezawodnego systemu monitoringu, który generowałby listę osób starszych zagrożonych upadkiem i prezentował ją na stronie internetowej służb ratowniczych. Podejście to miało na celu zminimalizowanie długoterminowych skutków i szybkie ratowanie życia. Rozpoczęto od opracowania aplikacji mobilnej i za pomocą MATLABa sklasyfikowano upadki jako „upadek” lub „nie upadek”. Ostatecznie stworzono stronę internetową, która ułatwiłaby komunikację między aplikacją mobilną a MATLABem.

3

Machine learning-based approach for segmentation of intervertebral disc degeneration from lumbar section of spine using MRI images

Shinde Jayashri V., Joshi Yashwant V., Manthalkar Ramchandra R., Joshi

Bio-Algorithms and Med-Systems

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2022

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Vol. 18, no. 1

55--68

EN

Objectives: Intervertebral disc segmentation is one of the methods to diagnose spinal disease through the degener ation in asymptomatic and symptomatic patients. Even though numerous intervertebral disc segmentation tech niques are available, classifying the grades in the inter vertebral disc is a hectic challenge in the existing disc segmentation methods. Thus, an effective Whale Spine Generative Adversarial Network (WSpine-GAN) method is proposed to segment the intervertebral disc for effective grade classification. Methods: The proposed WSpine-GAN method effectively performs the disc segmentation, wherein the weights of Spine-GAN are optimally tuned using Whale Optimization Algorithm (WOA). Then, the refined disc features, such as pixel-based features and the connectivity features are extracted. Finally, the K-Nearest Neighbor (KNN) classifier based on the pfirrmann’s grading system performs the grade classification. Results: The implementation of the grade classification strategy based on the proposed WSpine-GAN and KNN is performed using the real-time database, and the perfor mance based on the metrics yielded the accuracy, true positive rate (TPR), and false positive rate (FPR) values of 97.778, 97.83, and 0.586% for the training percentage and 92.382, 90.580, and 1.972% for the K-fold value. Conclusions: The proposed WSpine-GAN method effec tively performs the disc segmentation by integrating the Spine-GANmethod and WOA. Here, the spinal cord images are segmented using the proposed WSpine-GAN method by tuning the weights optimally to enhance the performance of the disc segmentation.

4

A Deep-Learning-Based Bug Priority Prediction Using RNN-LSTM Neural Networks

Bani-Salameh Hani, Sallam Mohammed, Al shboul Bashar

e-Informatica Software Engineering Journal

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2021

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Vol. 15, nr 1

29--45

EN

Context: Predicting the priority of bug reports is an important activity in software maintenance. Bug priority refers to the order in which a bug or defect should be resolved. A huge number of bug reports are submitted every day. Manual filtering of bug reports and assigning priority to each report is a heavy process, which requires time, resources, and expertise. In many cases mistakes happen when priority is assigned manually, which prevents the developers from finishing their tasks, fixing bugs, and improve the quality. Objective: Bugs are widespread and there is a noticeable increase in the number of bug reports that are submitted by the users and teams’ members with the presence of limited resources, which raises the fact that there is a need for a model that focuses on detecting the priority of bug reports, and allows developers to find the highest priority bug reports. This paper presents a model that focuses on predicting and assigning a priority level (high or low) for each bug report. Method: This model considers a set of factors (indicators) such as component name, summary, assignee, and reporter that possibly affect the priority level of a bug report. The factors are extracted as features from a dataset built using bug reports that are taken from closed-source projects stored in the JIRA bug tracking system, which are used then to train and test the framework. Also, this work presents a tool that helps developers to assign a priority level for the bug report automatically and based on the LSTM’s model prediction. Results: Our experiments consisted of applying a 5-layer deep learning RNN-LSTM neural network and comparing the results with Support Vector Machine (SVM) and K-nearest neighbors (KNN) to predict the priority of bug reports. The performance of the proposed RNN-LSTM model has been analyzed over the JIRA dataset with more than 2000 bug reports. The proposed model has been found 90% accurate in comparison with KNN (74%) and SVM (87%). On average, RNN-LSTM improves the F-measure by 3% compared to SVM and 15.2% compared to KNN. Conclusion: It concluded that LSTM predicts and assigns the priority of the bug more accurately and effectively than the other ML algorithms (KNN and SVM). LSTM significantly improves the average F-measure in comparison to the other classifiers. The study showed that LSTM reported the best performance results based on all performance measures (Accuracy = 0.908, AUC = 0.95, F-measure = 0.892).

5

Diagnosis of amyotrophic lateral sclerosis (ALS) disorders based on electromyogram (EMG) signal analysis and feature selection

Mokdad Aicha, Debbal Sidi Mohammed El Amine, Meziani Fadia

Polish Journal of Medical Physics and Engineering

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2020

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Vol. 26, Iss. 3

155--160

EN

Electromyogram signal (EMG) provides an important source of information for the diagnosis of neuromuscular disorders. In this study, we proposed two methods of analysis which concern the bispectrum and continuous wavelet transform (CWT) of the EMG signal then a comparison is made to select which one is the most suitable to identify an abnormality in biceps brachii muscle in the main purpose is to assess the pathological severity in bifrequency and time-frequency analysis applying respectively bispectrum and CWT. Then four time and frequency features are extracted and three popular machine learning algorithms are implemented to differentiate neuropathy and healthy conditions of the selected muscle. The performance of these time and frequency features are compared using support vector machine (SVM), linear discriminate analysis (LDA) and K-Nearest Neighbor (KNN) classifier performance. The results obtained showed that the SVM classifier yielded the best performance with an accuracy of 95.8%, precision of 92.59% and specificity of 92%. followed by respectively KNN and LDA classifier that achieved respectively an accuracy of 92% and 91.5%, precision of 92% and 85.4%, and specificity of 92% and 83%.

6

Friedman and Wilcoxon Evaluations Comparing SVM, Bagging, Boosting, K-NN and Decision Tree Classifiers

Biju V. G., Prashanth CM

Journal of Applied Computer Science Methods

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2017

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Vol. 9 No. 1

23--47

EN

This paper describes a number of experiments to compare and validate the performance of machine learning classifiers. Creating machine learning models for data with wide varieties has huge applications in predictive modelling across multiple domain of science. This work reviews state of the art techniques in machine learning classifiers methods with several extent of magnitude in statistics and key findings that will be helpful in establishing best methodological practices for class predictions. Comprehensive comparative review analysis with statistical validations for various machine learning algorithm for SVM, Bagging, Boosting, Decision Trees and Nearest Neighborhood algorithm on multiple data sets is carried out. Focus on the statistical analysis of the results using Friedman-Test and Wilcoxon Test as well as other interpretative metrics like classification rate, ROC, F-measure are evaluated to benchmark results.