Ladwig JP, Sommese AJ. "Using cited half-life to adjust download statistics " College & Research Libraries 66(6): 527-542, November 2005.

[Eugene Garfield]

LADWIG  JP : E-mail Address: ladwig.1 at nd.edu,
SOMMESE AJ : E-mail Address:   sommese at nd.edu

Title: Using cited half-life to adjust download statistics

Author(s): Ladwig JP, Sommese AJ

Source: COLLEGE & RESEARCH LIBRARIES 66 (6): 527-542 NOV 2005

Document Type: Article   Language: English
Cited References: 9      Times Cited: 0

Abstract: "Supplying accurate CPU [cost-per-serial use] information to
faculty and appropriate marketing of the alternate modes of delivery...
become the key to achieving an optimal cost-efficient serials collection in
an academic library."(1)

A model is presented for adjusting use statistics using a journal's ISI
Journal Citation Reports cited half-life. The goal is to improve the method
used to evaluate the raw electronic download figure. The proposed model
will still undercount total use, but the undercounting will be proportional
across disciplines and less severe. By using this model, librarians can
avoid making cancellation decisions that may cost their libraries more
money in the long run.

Addresses: Ladwig JP (reprint author), Univ Notre Dame, Univ Lib, Notre
Dame, IN 46556 USA
Univ Notre Dame, Univ Lib, Notre Dame, IN 46556 USA
Univ Notre Dame, Dept Math, Notre Dame, IN 46556 USA

Publisher: ASSOC COLL RESEARCH LIBRARIES, 50 E HURON ST, CHICAGO, IL 60611
USA
Subject Category: INFORMATION SCIENCE & LIBRARY SCIENCE
IDS Number: 986PZ

ISSN: 0010-0870

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