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report count (with pdf)
25073 reports
( Participation 493 Orgs )
report count
69413 reports
( compared to the privious fiscal year + 696 reports )
( Participation 1688 Orgs )
site summary count
132298 reports
( compared to the privious fiscal year + 1467 reports )

Number of Archaeological Site Reports by Prefectures

In the process of creating the Word Map, if there are not enough archaeological site reports (PDF format) from individual prefectures, the Word Map is not created. This is due to the fact that we want to avoid results affected by the statistical bias. Therefore, the Word Map is only created if the archaeological site reports that are in the PDF format (Report Type a01from Comprehensive Database of architectural site) has more than 300 site. Bulletin articles and materials from field briefings, are not included in the number of site reports.

All 22569
Hokkaido Prefecture166 Ibaraki Prefecture771 Niigata Prefecture371 Gifu Prefecture202 Shiga Prefecture258 Tottori Prefecture331 Tokushima Prefecture114 Fukuoka Prefecture1358
Aomori Prefecture311 Tochigi Prefecture1 Toyama Prefecture845 Shizuoka Prefecture431 Kyoto Prefecture284 Shimane Prefecture1155 Kagawa Prefecture635 Saga Prefecture101
Iwate Prefecture575 Gumma Prefecture548 Ishikawa Prefecture90 Aichi Prefecture267 Osaka Prefecture1736 Okayama Prefecture555 Ehime Prefecture186 Nagasaki Prefecture327
Miyagi Prefecture1014 Saitama Prefecture249 Fukui Prefecture12 Mie Prefecture587 Hyogo Prefecture613 Hiroshima Prefecture202 Kochi Prefecture384 Kumamoto Prefecture306
Akita Prefecture590 Chiba Prefecture68 Yamanashi Prefecture985 Nara Prefecture636 Yamaguchi Prefecture15 Oita Prefecture59
Yamagata Prefecture686 Tokyo Metropolis15 Nagano Prefecture2577 Wakayama Prefecture90 Miyazaki Prefecture1213
Fukushima Prefecture6 Kanagawa Prefecture41 Kagoshima Prefecture450
Okinawa Prefecture153

Site report Word Map-Iwate Prefecture(A Charted Overview of Frequent key words)

Papers listed in Comprehensive Database of Archaeological site reports in Japan has been subdivided into individual prefectures, where the archaeological key terms have been analysed and have been visualized as a figure.

Colour-coded Types of the key terms
Pink: Terms related to artefacts, Yellow: Terms related to the archaeological remains, Light blue: Other
* Depending on the key terms chosen there could be a slight change in the chosen category.
Created at 2020-05-31

Site report Word Map-Iwate Prefecture

Archaeological key words in the site reports from Comprehensive Database of Archaeological site reports in Japan have also been analysed and subdivided into individual prefectures. Key terms that are coming up in one prefecture but not in others shows us the uniqueness in the individual prefectures, and key terms that forms the archaeology in the separate prefectures.
Vector space model from Natural Language processing that combines TF (term frequency) and IDF(Inverse Document Frequency) to make TF-IDF was used to create this model. Numerical value used in the graph shows the quantity of the featured characteristics.

Colour-coded Types of the key terms
Pink: Terms related to artefacts, Yellow: Terms related to the archaeological remains, Light blue: Other
* Depending on the key terms chosen there could be a slight change in the chosen category.
Created at 2020-05-31
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