Library and Information Science

Library and Information Science ISSN: 2435-8495
三田図書館・情報学会 Mita Society for Library and Information Science
〒108‒8345 東京都港区三田2‒15‒45 慶應義塾大学文学部図書館・情報学専攻内 c/o Keio University, 2-15-45 Mita, Minato-ku, Tokyo 108-8345, Japan
Library and Information Science 35: 51-57 (1996)

短報Brief Communication

最適採餌理論の情報探索行動への応用情報量の測定に関する提案The application of optimal foraging to information seeking behavior: Suggestion for measuring information gain

慶應義塾大学大学院文学研究科図書館・情報学専攻Graduate School of Library and Information Science, Keio University ◇ 〒108-8345 東京都港区三田二丁目15番45号 ◇ Mita 2-15-45, Minato-ku, Tokyo 108-8345, Japan

受付日:1997年5月22日Received: May 22, 1997
受理日:1997年8月30日Accepted: August 30, 1997
発行日:1997年10月31日Published: October 31, 1997

There are some researches that try to apply the optimal foraging theory in ethology to information seeking behavior. The optimal foraging is the theory on foraging behavior of an animal and explains what range of prey type it searches and how long it stays in patches, in term of their foraging time and calorie gain. The former researches on the optimal foraging in information seeking and information retrieval measure information gain by the number of acquired documents. Those researches are inevitably limited only to the case where information gain can be measured by the number of documents and differences among documents are negligible. A method is proposed that measures information gain by user’s relative estimation. This method extends the area of application of the optimal foraging theory to information seeking behavior.

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