Scholarship has not undergone a paradigm shift in terms of argument and research with the introduction of the Web-based information world. Searching, on the other hand, has undergone a significant shift. In teaching students to find, use, and evaluate information, librarians and instructors need a useful model of the information world that enables…

Introduction: This study reports the application of Ellis's behavioural model to the information seeking behaviour of Jewish studies scholars. Method: A qualitative study in which twenty-five scholars from four universities in Israel were interviewed using a semi-structured interview guide in which participants were encouraged to talk about…

Describes an instructional model for teaching the optimization of search strategies based on a small group of related reference tools. (PF)

Discusses the problems associated with using connect time as the basis of user fees for searching numeric online databases, and proposes a methodology for user charge estimation based on query formulation and results. (87 references) (CLB)

The retrieval effectiveness of Keywork-In-Context (KWIC) indexing is sought using a simple search simulation which constrains the user to approach a KWIC index with subject keywords and references dictated by a conventional index. A comparison of several KWIC index studies, using various methodologies, shows retrievability ratios of 35 percent -…

A Pathfinder functions as a step-by-step instructional tool which introduces a library user to the variety of information sources availabel in research libraries. (Author/NH)

Assesses the adequacy of Robert S. Taylor's model of question formulation in the context of online presearch interviews, and presents an altered model which introduces the bearers of needs and makes distinctions about those needs as isolated or negotiated events in the interviews. Thirty-three references are listed. (FM)

Discussion of models for indexing and searching information resources on the Internet focuses on the results of a simple query on a number of existing search systems and on two proposed index metadata structures for indexing and supporting search and discovery: the Dublin Core Elements List and the Semantic Header. (52 references) (Author/LRW)

Examines the processes that occur when a searcher searches for documents in a reference database, and what relationships exist between psychological descriptions of these processes and models from the domain of information retrieval. Highlights include associational psychological modeling; empirical testing; and information science and psychology.…

Discusses end-user searching in Boolean information retrieval systems considers the role of search intermediaries and proposes a model of user preferences that incorporates a user's profile. Highlights include document representation; information queries; document output ranking; calculating user profiles; and selecting documents for a local…

Explores the fundamentals of browsing behavior as a basis for the creation of an intelligent computer system to assist in online information retrieval. A prototype system is described, and the results of initial tests are reported. (5 references) (Author/CLB)

Compares traditional online interview with the presearch counseling session (process whereby a librarian, acting in an advisory role, assists client searcher in devising his/her search strategy, before that searcher goes online) and presents a one-step model of a presearch counseling session. An online self-service worksheet and 102-item…

Discusses use of associative search techniques and theoretical approaches to document retrieval problems contrasting two different ways of improving system performance: appending associative search techniques to conventional document retrieval systems and designing document retrieval systems based on probabilistic design principles. Four…

Examines various ways of dividing the labor of an information search between the person and the system. Different configurations of two dimensions--degree of system involvement in searching and types of search activity carried out by the person or system--are discussed. Recommendations for further research and development are offered. (49…

Describes a model for the workload of a full text retrieval system and of a simulation model for a version of an existing system called Full/Text. The effectiveness of various data caching strategies using the 2 models are explored, and the impact of various parameters on the strategies are evaluated. (13 references) (LRW)