With relevance to current students, the author has observed that when commuting by public transport, there is a near complete use of audio-visual devices by the "plugged-in" under 30 age group. New technology, new generation, and new allocations of time to work and study are combining to diminish lecture attendances. Some colleagues refuse to make…

The increasing use of portable computers and mobile computing and telecommunication devices means a re-think of how we access and retrieve information. Like many workers in knowledge-rich professions, university academics in Australia are increasingly overloaded with information in the form of messages, notes, papers, publications, books and so…

Web mining is emerging in many aspects of e-learning, aiming at improving online learning and teaching processes and making them more transparent and effective. Researchers using Web mining tools and techniques are challenged to learn more about the online students' reshaping online courses and educational websites, and create tools for…

Modern composition instructors often use and teach research methods for Internet search engines and electronic databases. It is not their intent to turn back the clock. However, if they can help students connect the world of Internet searches and the university library, they can promote information literacy in its broadest sense by developing…

Objective: The purpose of this study was to identify the health topics students received information about, how students obtained health-related information, and perceived believability of those sources. Participants and Methods: Students (N = 1202) were surveyed using the National College Health Assessment (NCHA) of the American College Health…

Recently considerable attention has been given in the online information retrieval literature to techniques for producing a weighted output of documents in response to a request. One approach tries to maintain the form of and relationships among requests as they appear in current Boolean logic-based systems, while extending it to permit a weighted…

The single-link cluster method is used to construct a hierarchic classification for the 1400 documents in the Cranfield test collection. A variety of retrieval strategies applied to this hierarchy are evaluated in terms of effectiveness and efficiency. (Author)

The mathematical theory of measurement is used to construct a framework for the evaluation of information retrieval strategies. (Author)

Reports the results of experiments in document clustering using three well-known test collections. (Author)

This report evaluates the engineering information services provided by the University of Calgary since implementation of the COMPENDEX (tape service of Engineering Index, Inc.) service using the IBM TEXT-PAC system. Evaluation was made by a survey of the users of the Current Information Selection (CIS) service, the interaction between the system…

Some extensions of the methodology of document retrieval system evaluation are presented in this report. Part I provides an overview of some of the milepost studies in evaluation. Part II presents in some detail a discussion of measurement from a nonconventional viewpoint, including such topics as why measure at all, what measures are appropriate…

A relational document retrieval system is developed that is primarily concerned with hierarchic tree structures and lateral links. The lateral linkages are relationships that cannot be represented within the tree structure representation. A number of annotated examples are given along with a detailed description of the relational data structure…

Five abstracts journals and one indexing service in the field of library and information science were compared for the efficacy of their subject retrieval performance. (Author)

Describes the concept of maximum indexing, a system aimed at achieving maximum recall and maximum precision in computerized information retrieval. The indexing strategies used to achieve maximum indexing and the problems that arise are discussed. (9 references) (CLB)

Introduces a new model of viewing documents based on citing-cited relationship between them. Using Bayes' decision theory, it is shown how source document may be indexed and weighted by relevant cited document features, corresponding to one pass relevance feedback Model 1 (probabilistic indexing) or Model 2 (probabilistic retrieval). (24…