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report count (with pdf)
23623 reports
( Participation 458 Orgs )
report count
61979 reports
( compared to the privious fiscal year + 13431 reports )
( Participation 1584 Orgs )
site summary count
126606 reports
( compared to the privious fiscal year + 32419 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 21416
Hokkaido Prefecture59 Ibaraki Prefecture746 Niigata Prefecture316 Gifu Prefecture197 Shiga Prefecture258 Tottori Prefecture325 Tokushima Prefecture113 Fukuoka Prefecture1350
Aomori Prefecture203 Tochigi Prefecture35 Toyama Prefecture842 Shizuoka Prefecture421 Kyoto Prefecture109 Shimane Prefecture1143 Kagawa Prefecture609 Saga Prefecture99
Iwate Prefecture484 Gumma Prefecture522 Ishikawa Prefecture79 Aichi Prefecture248 Osaka Prefecture1714 Okayama Prefecture546 Ehime Prefecture185 Nagasaki Prefecture276
Miyagi Prefecture1005 Saitama Prefecture237 Fukui Prefecture2 Mie Prefecture574 Hyogo Prefecture522 Hiroshima Prefecture83 Kochi Prefecture384 Kumamoto Prefecture294
Akita Prefecture584 Chiba Prefecture66 Yamanashi Prefecture973 Nara Prefecture610 Yamaguchi Prefecture15 Oita Prefecture52
Yamagata Prefecture676 Tokyo Metropolis2 Nagano Prefecture2557 Wakayama Prefecture89 Miyazaki Prefecture1194
Fukushima Prefecture0 Kanagawa Prefecture35 Kagoshima Prefecture436
Okinawa Prefecture147

Site report Word Map-Gumma 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 2019-08-18

Site report Word Map-Gumma 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 2019-08-18
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