data-driven is an important method of social sciences as the huge amount of cross-media data. Adolescents are at a critical stage of psychological maturity and are most susceptible to the influence of their surroundin...
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One of the most essential analysis methods is sentiment analysis using machinelearning and tweets as data. The difficulty of performing sentiment analysis of important events was addressed in this work. The farmers...
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ISBN:
(纸本)9781665426329
One of the most essential analysis methods is sentiment analysis using machinelearning and tweets as data. The difficulty of performing sentiment analysis of important events was addressed in this work. The farmers' protest, a popular topic on social media for months, was the centre of this article. We can examine the depth of this protest and analyze the data based on various people's viewpoints utilizing data acquired in the form of tweets connected to farmer protests using Twitter APL We investigated various strategies for performing sentiment analysis on datasets we produced by gathering and cleaning data from Twitter using popular protest hashtags. We focused on Naive Bayesian network classifiers, Support Vector machines, and Logistic Regression for machinelearning. When working with vast amounts of text data, we can conclude that Naive Bayes is more efficient in Sentiment Analysis than Support Vector machine and Logistic Regression.
Human Activity Recognition is a crucial area of research in many applications. However, training deep neural network-based models can be expensive and time-consuming. This paper introduces a progressive learning-based...
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Using meteorological data, this study compares machinelearning approaches such as K-Nearest Neighbors, Support Vector machine, and Artificial Neural Networks for detecting days with a greater probability of stroke in...
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ISBN:
(纸本)9783031723520;9783031723537
Using meteorological data, this study compares machinelearning approaches such as K-Nearest Neighbors, Support Vector machine, and Artificial Neural Networks for detecting days with a greater probability of stroke incidence in the region of Transylvania, Romania. Being the first to address this problem in Romania, the study contributes to previous research by employing machinelearning approaches and applying them to meteorological data that also includes air fronts. Furthermore, the study was conducted on data which was collected in a ten-year span (2013-2022). Because the initial dataset had a substantial class imbalance, having the positive class represent 1/20 of the whole dataset, the proposed approaches include dimensionality reduction and clustering techniques. According to the obtained results, the best-performing model is the Support Vector machine, having an accuracy of 63%, a precision of 70%, and a recall of 63%.
ADSI-2019 report states that there were approximately eleven thousand fire accidents reported across India in 2019. In this article, a deep learning model has been developed for fire and smoke detection from images. I...
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The Internet of Underwater Things (IoUT) is an interconnected communication ecosystem for underwater devices in maritime environments. IoUT devices range from seabed sensors to ships and boats in oceans which help in ...
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The number of individuals who use credit cards has increased dramatically in recent decades, as has the volume of credit card fraud transactions. Consequently, banks and credit card companies must be able to classify ...
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The proposed method presents an innovative solution that addresses the challenges of unlabeled data, robust performance in unknown environments, and foreground-background differentiation in object segmentation. The ob...
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The proposed method presents an innovative solution that addresses the challenges of unlabeled data, robust performance in unknown environments, and foreground-background differentiation in object segmentation. The objective of this work is to improve object segmentation tasks with an unannotated pool of data, derive model structure to demystify and educate large AI models by using knowledge distillation method, implementing framework with self-supervised learning analyse impacting and driving factors. Proposed method handles unlabeled data effectively, improving accuracy and generalization in diverse scenarios. It demonstrates remarkable reliability in unknown environments, ensuring consistent and accurate object segmentation in complex visual contexts. By incorporating novel techniques, the approach overcomes the longstanding problem of achieving consistent and non-trivial solutions for object segmentation, offering a comprehensive and effective solution for computer vision and image analysis. The literature review reveals that the DINO model using a ViT-B/8 backbone achieves an impressive 80.1% accuracy in linear regression, while the DINO model with a ViT-B/16 backbone attains the highest k-NN accuracy at 78.3%. The approach integrates deep neural networks for object segmentation with Kalman filtering for non-linear state estimation. Specifically, depth information obtained from point clouds is directly incorporated into the Unscented Kalman filtering, allowing for efficient and accurate performance. A one-parameter procedure is employed to identify and eliminate irregularities in point clouds, significantly improving the performance of segmenting objects. By incorporating self-supervised learning with distillation, the method effectively predicts and addresses the challenge of refining trivial solutions, leading to improved performance in viewpoint and illumination scenarios. Decision-making is deferred until a global view of the entire frame can be established
In this study, a novel data-driven model is developed using boosting-type machinelearning algorithms with the aim of predicting the ultimate load-bearing capacities of closed-ended piles. A comprehensive database is ...
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In this study, a novel data-driven model is developed using boosting-type machinelearning algorithms with the aim of predicting the ultimate load-bearing capacities of closed-ended piles. A comprehensive database is gathered using the full-scale load test data with four features. Special boosting type machinelearning methods are trained and tested with the database. Once predictions are made, a newly developed machinelearning algorithm called Shapley method is utilized to decide the effectiveness of the selected features in predicting pile capacities. Results indicate that the pile cross-section area and length features are sufficient to achieve accurate predictions covering the parameters on the pile side and the CPT-based tip resistance is the only parameter needed on the soil side. While different boosting methods result in different levels of accuracy in predicting the load bearing capacities of closed-ended piles, it is generally possible to determine the minimum number of features necessary to satisfy a high goodness of fit. In the end, optimum number of features are determined in the prediction process using the Shapley method through the boosting algorithms giving us a valuable prediction tool for estimating the bearing capacity of closed-ended piles.
BackgroundGlobally, stroke is the third most significant cause of disability. A stroke may produce motor, sensory, perceptual, or cognitive disorders that result in disability and affect the likelihood of recovery, af...
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BackgroundGlobally, stroke is the third most significant cause of disability. A stroke may produce motor, sensory, perceptual, or cognitive disorders that result in disability and affect the likelihood of recovery, affecting a person's ability to function. Evaluation post-stroke is critical for optimal stroke *** methods for classifying the clinical disorders of cognitive and motor in stroke patients use assessment and interrogative measures, which are time-consuming, complex, and labor-intensive. In response to the current situation, this study develops an algorithm to automatically classify motor and cognitive disorders in stroke patients by 3D brain MRI to assist physicians in ***, radiomics and fusion features are extracted from the OAx T2 Propeller of 3D brain MRI. Then, we use 14 machinelearning models and one model ensemble method to predict Fugl-Meyer and MMSE levels of stroke patients. Next, we evaluate the models using accuracy, recall, f1-score, and area under the curve (AUC). Finally, we employ SHAP to explain the output of the *** best predictive models come from Random Forest (RF) Classifier with fusion features in cognitive classification and Linear Discriminant Analysis (LDA) with radiomics features in motor classification. The highest accuracies are 92.0 and 82.5% for cognitive and motor *** brain maps can classify the cognitive and motor disorders of stroke patients. Radiomics features demonstrate its merits. The proposed algorithms with MRI images can efficiently assist physicians in diagnosing the cognitive and motor disorders of stroke patients in clinical practice. Additionally, this lessens labor costs, improves diagnostic effectiveness, and avoids the subjective difference that comes with manual assessment.
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