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report count (with pdf)
24569 reports
( Participation 475 Orgs )
report count
68831 reports
( compared to the privious fiscal year + 66 reports )
( Participation 1684 Orgs )
site summary count
130289 reports
( compared to the privious fiscal year + 107 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 22125
Hokkaido Prefecture137 Ibaraki Prefecture766 Niigata Prefecture368 Gifu Prefecture200 Shiga Prefecture258 Tottori Prefecture325 Tokushima Prefecture114 Fukuoka Prefecture1350
Aomori Prefecture307 Tochigi Prefecture1 Toyama Prefecture844 Shizuoka Prefecture428 Kyoto Prefecture176 Shimane Prefecture1147 Kagawa Prefecture620 Saga Prefecture100
Iwate Prefecture557 Gumma Prefecture525 Ishikawa Prefecture79 Aichi Prefecture254 Osaka Prefecture1718 Okayama Prefecture554 Ehime Prefecture185 Nagasaki Prefecture287
Miyagi Prefecture1010 Saitama Prefecture239 Fukui Prefecture11 Mie Prefecture576 Hyogo Prefecture602 Hiroshima Prefecture185 Kochi Prefecture384 Kumamoto Prefecture300
Akita Prefecture589 Chiba Prefecture66 Yamanashi Prefecture984 Nara Prefecture617 Yamaguchi Prefecture15 Oita Prefecture53
Yamagata Prefecture683 Tokyo Metropolis15 Nagano Prefecture2570 Wakayama Prefecture90 Miyazaki Prefecture1205
Fukushima Prefecture0 Kanagawa Prefecture37 Kagoshima Prefecture443
Okinawa Prefecture151

Site report Word Map-Shizuoka 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 2020-04-05

Site report Word Map-Shizuoka 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 2020-04-05
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