Statistics for measuring the efficiency of electronic information retrieval

Electronic Library for Scientific Journals: Consortium Project in Brazil

“…This evaluation is critical for preparation of guidelines that orient the choice of systems and proper training programs. 13 For the electronic library, the challenge of measuring not only the amount of file use but also the efficacy and efficiency of its information access systems and training for its users is an imperative task. In the project described, evaluation shall be made by indicators that demonstrate use of the electronic library and of the collections on paper, per journal title, subject researched, user institution, number of accesses per day, and user satisfaction regarding service provided (interface, response time, text copies), among other factors to be studied.…”

Typographie et sélection de sites internet

“…[4]. De nombreux chercheurs ont étudié cette différence entre les réponses du système (« recall ») et la précision de ces réponses (c'est-à-dire leur utilité, « precision ») afin d'évaluer l'efficacité des systèmes informatiques (par exempple [5]). Parallèlement, plusieurs études basées sur une approche cognitive ont tenté de déterminer les critères utilisés par des usagers recherchant des sites Internet pertinents.…”