The direct-chaining technique of hash coding is generalized in a manner that is useful for storing records on the basis of non-unique search keys. Two hash functions are used, a process implying a tree structure. Two models, one involving unique and the other non-unique keys, are presented. (7 references) (Author/KE)

The on-line serials control system in use at UCLA Biomedical Library utilizes and inverted file for its primary retrieval technique. A detailed profile of title structure and search scheme is given. The major determinants of the scheme are evaluated on a performance and cost basis. (5 references) (Author/KE)

Explores similarities between research approaches characterizing different paradigms in information science and different information-processing styles of individual researchers. Proposes a model of the way in which new knowledge is generated, based on these similarities. The model focuses on "research pathologies," and ways in which the…

Reviews developments in research on information storage and retrieval, question-answering and natural language interface online systems, and the processes of synthesis and interpretation in intelligent behavior. Problem formulation, information requests, and knowledge representation are discussed in relation to the design and use of retrieval…