Proposes an extended vector-processing scheme that extracts information from hypertext links to enhance retrieval effectiveness. Evaluates the impact of bibliographic references, bibliographic coupling, cocitation and document representative relationships. Shows that hypertext links do not always improve average precision, and interdocument…

An interactive, self-guided program for the joint post-processing of bibliographic citations from the federal information centers of the Department of Energy (DOE), the Department of Defense (DOD), and the National Aeronautics and Space Administration (NASA) is described. The program, presently installed on the Intelligent Gateway Processor of the…

The Library of Congress presents the history of its Machine Readable Cataloging (MARC) system. Descriptions of MARC pilot projects and distribution services are followed by a discussion of several conversion projects undertaken by libraries in order to implement MARC. Then MARC's influence on standardization of formats for information interchange,…