A trend analysis on the quality and quantity of Japanese research papers in an international perspective

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  • 国際的にみた日本の学術論文の質と量の動向分析
  • コクサイテキ ニ ミタ ニホン ノ ガクジュツ ロンブン ノ シツ ト リョウ ノ ドウコウ ブンセキ

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Abstract

In 2003, the author made a statistical survey on publication of Japanese research papers in overseas journals as of 2000 using Thomson Reuters' citation index databases. As the results showed an overseas drain ratio of 80%, National Institute of Informatics started a program of the recovery. The author has recently made another larger scaled survey to get the time series statistics on the topic from 1994 to 2009. This paper analyzes the statistics from the view points of quality and quantity of Japanese research papers to identify their trends in an international perspective and points out some issues to be further examined. A new unbiased and comparable quality index was devised through a statistical process on the impact factor, which was applied to analyze the trends by country and research field.

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