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Abstract

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Objective

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Other Innovations

Investigation variable star classification through light curve analysis using machine learning approach

คณะวิทยาศาสตร์

Investigation variable star classification through light curve analysis using machine learning approach

With the development of space technology, wide-field sky surveys using telescopes have expanded the range of new data available for time-domain astronomical research. Traditional data analysis methods can no longer respond quickly and accurately enough to the growing volume of data. Thus, classifying time-series data, such as light curves, has become a significant challenge in the era of big data. In modern times, analyzing light curves has become essential for using machine learning techniques to handle and filter through massive amounts of data. Machine learning algorithms can be divided into two categories: shallow learning and deep learning. Numerous researchers have proposed and developed a variety of algorithms for light curve classification. In this study, we experimented with Support Vector Machine (SVM) and XGBoost, which are shallow machine learning algorithms, as well as 1D-CNN and Long Short-Term Memory (LSTM), which are deep learning algorithms, which are branches of deep machine learning, to classify variable stars. The training and testing data used in this study were from the Optical Gravitational Lensing Experiment-III (OGLE-III), consisting of variable star data from the Large Magellanic Cloud (LMC), categorized into five main classes: Classical Cepheids, δ Scutis, eclipsing binaries, RR Lyrae stars, and Long-period variables. The results demonstrate the performance analysis of each machine learning algorithm type applied to light curve data, while also highlighting the accuracy and statistical metrics of the algorithms used in the experiments.

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Blood Cell Classification

คณะวิศวกรรมศาสตร์

Blood Cell Classification

This project has been developed to address medical challenges related to the process of counting and classifying blood cells from samples, a task that requires both time and high precision. To reduce the workload of medical personnel, the developers have created a platform and an artificial intelligence (AI) system capable of automatically classifying and counting cells from sample images. This system is designed to assist medical laboratory technicians by enabling them to work more efficiently and accurately, reducing the time required for analysis. Furthermore, it promotes the advancement of medical technology, ensuring effective usability from classrooms and laboratories to hospitals.

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Coconut coir ceiling board with thermal insulation property latex

คณะวิศวกรรมศาสตร์

Coconut coir ceiling board with thermal insulation property latex

This project objectives are 1) investigate the utilization of coconut husk and rubber latex in construction applications, 2) determine the optimal ratio of coconut husk and rubber latex mixtures, and 3) test the properties of ceiling panels made from coconut husk and rubber latex composite under Thai Industrial Standard (TIS) 219-2552 for gypsum ceiling boards. The methodology involves the following steps: 1) planning the project, 2) designing the mixture for the coconut husk and rubber latex composite ceiling panels, 3) producing the composite ceiling panels, 4) testing the product for properties according to TIS 219-2552 for gypsum ceiling boards, and 5) summarizing the test results.

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