This work is supported in part by a grant from Seagram's Fund for Academic Innovation.
[2]CIC Forum: America in the Age of Information, Bethesda, MD, July 1995.
[3] The list of URLs of document known to contain the search
terms is given in [DESA4]. The tests were done on June 3, 1995. Result may not
be identical if the tests are repeated due to the possible discovery of the
missing documents by the index systems involved. All documents in
[DESA4] existed well before the test date.
[4] Libraries use a number of basic catalogue systems such as Library of
Congress, Dewey Decimal and MARC. Even among MARC there are slight differences
as in LCMARC and CANMARC.
[5] Title for non document like resources may require some creativity. For
instance the title of a satellite image could be generated from the name of the
satellite, its location, date, time, cameras, frequencies, filters, etc.
[6] For resources such as satellite image, the agent may be the agency
controlling the satellite or the satellite itself.
[7] Typical values for role of the agent could be author, co-author, designer,
editor, prog6ammer, creator, artist, corporate entity, publisher, etc.