Explains seven types of subject descriptions commonly used in databases--hierarchical classification, category codes, subject headings, descriptors, faceted classification, post-controlled vocabulary, and natural language--and describes specific search techniques for taking advantage of the strengths of particular types of vocabularies. An overall…

Discusses indexing and access to digital resources, especially on the Internet. Topics include subject searching versus indexing; multiple terms of access; folk classification; basic level terms; folk access; Bradford's Law; Zipfian distributions; vocabulary scalability; the Resnikoff-Dolby 30:1 Rule; domain-specific indexing; and implications for…

Reports a study that analyzed natural language search statements constructed by 22 Getty Visiting Scholars as they researched humanities topics on DIALOG. Results show a greater use of names, geographical areas, chronological periods, and discipline terms than scientists use, with implications for the design of humanities online systems and…