The iceberg hypothesis revisited / Lancho-Barrantes, Guerrero-Bote & Moya-Anegón(2010)

Citation - Lancho-Barrantes, B., Guerrero-Bote, V., & Moya-Anegón, F. (2010). The iceberg hypothesis revisited. Scientometrics, 85(2), 443-461.

Keyword -

Abstract

Scopus 資料庫中 JIF 分布狀況的研究。並與ISI-1997的研究作比較。 所有的特定研究主題領域的JIF分佈,都與ISI-1997研究一樣,符合負對數法則(negative logarithmic law),集中在少數重要期刊上;並未如 Egghe 所預測的,呈現 S形分佈。但Scopus-2006 的分佈趨勢線降得更陡且有更長的尾部:就像是冰山一樣。

Content

For each journal, we calculated

  • the number of citable papers (Articles, Reviews, and Conference Papers published in 2003, 2004, or 2005),
  • the total number of citations received (made in 2006 to papers published in 2003, 2004, or 2005),
  • the number of subcitations (citations from journals of the same specific subject area) received (made in 2006 to papers published in 2003, 2004, or 2005),
  • the number of references (made in 2006 to papers published in 2003, 2004, or 2005).

These data were used to calculate the following indices:

  • 知識輸出率 Knowledge Export Ratio (%) (Wormell 1998) (%export):
  • 知識匯入率 Knowledge Import Ratio (%) (%import):
  • 內部期刊影響指數 Internal Journal Impact Factor: similar to the JIF, but only taking into account the citations from that same Specific Subject Area (Subcitations).
  • 外部期刊影響指數 External Journal Impact Factor: similar to the JIF, but only taking into account the citations not from that same Specific Subject Area.

Note