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report count (with pdf)
23947 reports
( Participation 467 Orgs )
report count
63871 reports
( compared to the privious fiscal year + 15435 reports )
( Participation 1596 Orgs )
site summary count
127565 reports
( compared to the privious fiscal year + 33608 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 21692
Hokkaido Prefecture90 Ibaraki Prefecture747 Niigata Prefecture358 Gifu Prefecture197 Shiga Prefecture258 Tottori Prefecture325 Tokushima Prefecture114 Fukuoka Prefecture1350
Aomori Prefecture203 Tochigi Prefecture44 Toyama Prefecture842 Shizuoka Prefecture424 Kyoto Prefecture150 Shimane Prefecture1142 Kagawa Prefecture613 Saga Prefecture99
Iwate Prefecture532 Gumma Prefecture524 Ishikawa Prefecture79 Aichi Prefecture248 Osaka Prefecture1715 Okayama Prefecture546 Ehime Prefecture185 Nagasaki Prefecture284
Miyagi Prefecture1007 Saitama Prefecture237 Fukui Prefecture2 Mie Prefecture575 Hyogo Prefecture572 Hiroshima Prefecture86 Kochi Prefecture384 Kumamoto Prefecture300
Akita Prefecture586 Chiba Prefecture66 Yamanashi Prefecture974 Nara Prefecture614 Yamaguchi Prefecture15 Oita Prefecture53
Yamagata Prefecture677 Tokyo Metropolis15 Nagano Prefecture2553 Wakayama Prefecture90 Miyazaki Prefecture1194
Fukushima Prefecture0 Kanagawa Prefecture36 Kagoshima Prefecture440
Okinawa Prefecture147

Site report Word Map-Shimane 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 2019-12-08

Site report Word Map-Shimane 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 2019-12-08
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