Outlines a view of the changing framework for information retrieval suggested by the Web environment. Speculates about how some of these changes may manifest in upcoming generations of information retrieval systems. Sketches ideas about the broader context of trust management infrastructure that will be needed to support these developments, and…

Presents factors for librarians to consider when decision-making about information retrieval. Discusses indexing theory; thesauri aids; controlled vocabulary or thesauri to increase access; humans versus machines; automated tools; product evaluations and evaluation criteria; automated classification tools; content server products; and document…

Discusses methodological issues in empirical studies of information-related behavior in six specific research areas: information needs and uses; information seeking; relevance judgment; online searching (including online public access catalog, online database, and the Web); human-system interactions; and reference transactions. (Contains 191…

The purpose of this study is to investigate the consistency of students' behavior regarding their pace of actions over sessions within an online course. Pace in a session is defined as the number of logged actions divided by session length (in minutes). Log files of 6,112 students were collected, and datasets were constructed for examining pace…

Patient H.M. can form new memories and maintain them for a few seconds before they fade away. From a neurobiological perspective, this amnesia is usually attributed to the absence of memory consolidation, that is, memory storage. An alternative view holds that this impairment reflects that the memory is present but cannot be retrieved. This debate…

This paper outlines work on a class of systems called Personal Information Management Assistants (PIMAs). PIMAs observe user interaction with everyday applications and use these observations to anticipate a user's information needs. They then automatically fulfill these needs by accessing Internet information sources, filtering the results, and…

Although alternate definitions for information literacy have been developed by educational institutions, professional organizations and individuals, they are likely to stem from the definition offered in the Final Report of the American Library Association (ALA) Presidential Committee on Information Literacy: "to be information literate, a…

This study investigated the benefits of online research methods over manual methods for novice researchers. It was hypothesized that novice researchers who conduct online searches submit better research projects than those who use manual methods. Undergraduate students in two classes of a journalism course on "Law and Mass…

Based on an analysis of online search evaluation forms collected from all types of U.S. libraries, and a pilot test of a draft evaluation form in selected federal research libraries, this report presents the work of the American Library Association's (ALA's) Machine-Assisted Reference Section (MARS) Committee on Measurement and Evaluation. The…

This report investigates seven document representations--configurations of controlled and free-text vocabulary--which can be used to search the INSPEC (Computer and Control Abstracts) and PsychInfo (Psychological Abstracts) databases. The performance of each representation is analyzed, as is overlap among the representations, i.e., the extent to…

The goal of this project was to find ways of enhancing the efficiency of searching machine readable data bases. Ways are sought to transfer to the computer some of the tasks that are normally performed by the user, i.e., to further automate information retrieval. Four experiments were conducted to test the feasibility of a sequential processing…

The National Library of Medicine's Current Information Transfer in English public access online catalog offers unique subject search capabilities--natural-language query input, automatic medical subject headings display, closest match search strategy, ranked document output, dynamic end user feedback for search refinement. References, description…

Describes student involvement in conducting literature searches using the online literature retrieval methods of the Lockheed DIALOG system as a part of a junior-level Introduction to Independent Study Course. Outlines the teaching methods, presenting a set of practice questions with answers and discussing the progressive building of good study…

Reports results of user survey complemented by personal discussions organized to ascertain users' satisfaction with and impact of On-line Information Service (OLIS) introduced by University of Hong Kong Libraries in January 1980. Subject searches, relevance of citations, and costs are discussed. The questionnaire and OLIS requests form are…

Describes how group of end users (engineering undergraduates) at Chalmers University of Technology were trained to perform interactive online searching on BYGGDOK, a small, specialized Scandinavian database. Goals and objectives of the instruction, teaching methods, evaluation, and comparison of searching between end users and intermediaries are…