2013 Fiscal Year Final Research Report
Educational Character Recognition System Implementing an Interactive Visualization of Multi-Dimensional Distribution
| Project/Area Number |
23501194
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Educational technology
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| Research Institution | Toyota National College of Technology |
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Principal Investigator |
TAKESHITA Tetsuo 豊田工業高等専門学校, 情報工学科, 教授 (20149933)
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| Co-Investigator(Renkei-kenkyūsha) |
EDSKI Nobuyuki 豊田工業高等専門学校, 情報工学科, 准教授 (80311033)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 教材情報システム / ヒューマン・インタフェース / メディア教育 / コンピュータ・リテラシー / パターン認識 / 文字認識 / 主成分分析 |
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| Research Abstract |
We propose visualizing multi-dimensional distribution used in pattern recognition system and construct an educational visualization system for multi-dimensional space which stimulates intuitive and visual understanding of pattern distribution. We treat the method of visualizing the multi-dimensional vectors of each character on the handwritten digit recognition system.
By applying principal component analysis, the original vectors are converted into the principal components. Ellipsoids of equal probability for each category are derived and visualized in the three-dimensional space shown in the visualization system. As a result, the boundary surfaces of each distribution of categories can be seen easily in the reduced three-dimensional space in spite of the fact that the visualized distributions do not represent all vectors. In conclusion, learners of pattern recognition can be stimulated their interest and comprehension of multi-dimensional distribution using this system.
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Research Products
(14 results)
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[Remarks] 全体として大きなシステムとなってしまったので,初級・中級編と上級編とに分離した。初級・中級編には,和文も用意されている。
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[Remarks] 最後のシステムは容量が大きいので,速度の遅い回線では利用する際,注意が必要である。
