| Project/Area Number |
23500316
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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 |
Library and information science/Humanistic social informatics
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| Research Institution | Osaka Electro-Communication University |
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Principal Investigator |
OZAWA Kazumasa 大阪電気通信大学, 情報通信工学部, 客員研究員 (40076823)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2013: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 前方後円墳 / 邪馬台国 / 考古学 / 歴史情報学 / 数理 / コンピュータ |
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| Research Abstract |
In recent days, a kind of understanding to Japanese ancient history has been growing in the news media: To summarize, Keyhole tomb mounds began to be built in the time of the ancient kingdom, Yamatai-koku, in the mid-third century. This idea might be introduced by an intuitive and non-numerical sense rather than by scientific reasoning. This research project aims at verifying such understanding in a quantitative way of analysis. First, a set of the oldest Keyhole tombs have been selected. Then an attribute value has statistically been extracted from the set. Next, populations of 30 countries in Japanese islands, including Yamatai-koku, appeared in an ancient Chinese document have been listed to compute another attribute value (fractal dimension) of their distribution, assumed to be with the power law. Finally a reasonable result has been obtained both by a quantitative analysis on the above two attribute values and by computer simulations.
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