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report count (with pdf)
28152 reports
( Participation 551 Orgs )
report count
88552 reports
( compared to the privious fiscal year + 502 reports )
( Participation 1739 Orgs )
site summary count
136271 reports
( compared to the privious fiscal year + 610 reports )
現在の文化財論文件数
1230 reports
( compared to the privious fiscal year + 413 reports )
video count
426 reports
( compared to the privious fiscal year + 15 reports )
( Participation 47 Orgs )
文化財イベント件数
513 reports
( compared to the privious fiscal year + 5 reports )
※過去開催分含む

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 24555
Hokkaido Prefecture332 Ibaraki Prefecture799 Niigata Prefecture383 Gifu Prefecture235 Shiga Prefecture260 Tottori Prefecture332 Tokushima Prefecture115 Fukuoka Prefecture1739
Aomori Prefecture369 Tochigi Prefecture135 Toyama Prefecture865 Shizuoka Prefecture483 Kyoto Prefecture315 Shimane Prefecture1190 Kagawa Prefecture651 Saga Prefecture151
Iwate Prefecture630 Gumma Prefecture630 Ishikawa Prefecture148 Aichi Prefecture317 Osaka Prefecture1794 Okayama Prefecture556 Ehime Prefecture201 Nagasaki Prefecture356
Miyagi Prefecture1099 Saitama Prefecture262 Fukui Prefecture14 Mie Prefecture602 Hyogo Prefecture636 Hiroshima Prefecture228 Kochi Prefecture384 Kumamoto Prefecture329
Akita Prefecture606 Chiba Prefecture232 Yamanashi Prefecture986 Nara Prefecture669 Yamaguchi Prefecture15 Oita Prefecture74
Yamagata Prefecture689 Tokyo Metropolis40 Nagano Prefecture2621 Wakayama Prefecture90 Miyazaki Prefecture1224
Fukushima Prefecture97 Kanagawa Prefecture41 Kagoshima Prefecture472
Okinawa Prefecture159

Site report Word Map-Ibaraki 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 2021-04-17

Site report Word Map-Ibaraki 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 2021-04-17
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