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Stock portfolio optimization is both an attractive research topic and a complex problem due to the rapidly changing economy. Based on optimization techniques, many algorithms have been proposed to mine different portfolios. In the previous approach, a group stock portfolio (GSP) was derived based on the investors' objective and subjective requests by the grouping genetic algorithm. Stocks were divided...
This study developed augmented reality (AR) tools to help elementary school students learn enumeration strategies-layer strategy and the formula strategy, for calculating the volume of cubes. A quasi-experiment design was conducted in this study to evaluate the effectiveness of the AR tools. Two classes with a total of 52 students participated in the study. One class with 28 students used the physical...
In this paper, symbolic aggregate approximation which is the well-known dimensionality reduction for time series is utilized for enhancing previous approach to mine more useful group stock portfolio by grouping genetic algorithm. Each chromosome consists of three part that are grouping, stock, and stock portfolio parts. Grouping and stock parts represent how to divide stocks into groups. Stock portfolio...
Spatial ability is considered essential in learning many disciplines. Studies have shown that providing students with geometry learning activities would help them develop spatial ability. Augmented Reality (AR) provides a combination of real and virtual worlds and allows students to view the spatial relationship of real world objects that is impossible to be implemented in traditional textbooks. This...
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