The deep web in institutional repositories in Japan

Teru Agata, Yosuke Miyata, Atsushi Ikeuchi, Shuichi Ueda

Research output: Contribution to journalArticlepeer-review


Investigating the current status of the deep web is important for both the general public and researchers. Several deep web surveys have recently been conducted on institutional repositories (IRs). We calculate the extent of the deep web based on the content of searchable IRs in Japan, but using a more appropriate interval and exhaustive search with three major search engines (Google, Yahoo!, and Bing). The deep web is roughly 30% of major search engines' coverage.

Original languageEnglish
JournalProceedings of the ASIST Annual Meeting
Publication statusPublished - 2010 Nov


  • Academic Resource
  • Deep Web
  • Institutional Repository
  • Search Engine

ASJC Scopus subject areas

  • Information Systems
  • Library and Information Sciences


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