Journal Articles - Educational and Pedagogy - 2023
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Publication"On the problem of the densest packing of spherical segments into a sphere Sobre o problema do empacotamento mais denso de segmentos esféricos em uma esfera"( 2023)"The paper considers a particular variant of the classical optimal packing problem when the container is a sphere, the packed elements are equal spherical caps, and the optimality criterion is to maximize their geodesic radius. At the same time, we deal with a special integral metric to determine the distance between points, which becomes Euclidean in the simplest case. We propose a heuristic numerical algorithm based on the construction of spherical Voronoi diagrams, which makes it possible to obtain a locally optimal solution to the problem under consideration. Numerical calculations show the operability and effectiveness of the proposed method and allow us to draw some conclusions about the properties of packings."
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PublicationMULTI-TASKING LEARNING FOR THE PROBLEM OF DETERMINING THE POSITION AND DIRECTION OF PERSON AT THE TIME( 2023)With many practical applications print human life today such as manufacturing surveillance cameras, analyzing and processing customer behavior, ..., the problem of face detection and head pose estimation on digital images is being noticed by many researchers. A large number of proposed deep learning models have state-of-the-art accuracies such as YOLO, SSD, and MTCNN, solving the problem of face detection or HopeNet, FSA-Net, and RankPmodelsodel used for head pose estimation problems.According to bigmany state-of-the-artmethods, the process of this task consists of 2 parts face detection to head pose estimation. These two steps are completely independent and do not share information with each other. This makes the model clear print setup but does not leverage most of the featured resources extracted in each model. In this thesis, we proposed the PoseMultitask model with the motivation to leverage the features extracted from the face detection model, sharing them with the head pose estimation branch to improve accuracy. Also, with the variety of data, the Euler angle domain representing the face is large, our model can predict results in the 360° Euler angle domain. Applying the multi-tasking learning method, the PoseMultitask model can simultaneously predict the position and direction of the human head. To increase the ability to predict the head direction of the model, we change the representation of the human face from the rom Euler angle to vectors from the Rotation matrix.
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Publication"Nexus between Financial Education, Literacy, and Financial Behavior: Insights from Vietnamese Young Generations"( 2023)This study examines the relationship between financial education, financial literacy, and financial behavior among young Vietnamese adults. Based on survey data from over 1000 participants, this study measures financial literacy through objective and subjective knowledge and financial ability. Financial behavior is assessed in terms of short-term behaviors (emergency funds, spending, overdraft, and budgeting) and long-term behaviors (retirement planning, having a retirement account, investment, and setting financial goals). Logistic and ordered logistic regression models are employed to analyze the data. The findings indicate a significant difference in financial behavior between individuals who have received financial education and those who have not. This study also reveals that financial literacy has a negative impact on short-term financial behaviors but a positive effect on long-term financial behaviors. This novel finding highlights the importance of considering different time horizons when examining the interplay between financial literacy and behaviors. The insights from this study hold implications for policymakers, educators, and financial institutions in developing countries like Vietnam, as they can inform the design of effective financial education programs. Ultimately, this research contributes to enhancing the financial well-being of young adults and supporting the country’s overall economic growth
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PublicationIMPROVING PRACTICALITY AND INNOVATING TEACHING METHODS OF THE HISTORY OF THE COMMUNIST PARTY OF VIETNAM WITHIN VIETNAMESE EDUCATION SYSTEM( 2023)"Improving practicality and innovating teaching methods of the History of the Communist Party of Vietnam is an essential task of the higher education system in Vietnam. This research endeavors to improve the efficacy of teaching and learning Communist Party of Vietnam history, commensurate with the subject's significance. Employing historical, logical, analytical, and synthesizing research methods, this study identifies critical directions for Vietnam's education system in while proposing specific methods to improve the practicality of teaching the History of the Communist Party of Vietnam n Vietnamese universities and colleges."