The purpose of this exploratory study was to develop research methods to compare the effectiveness of two video browsing interface designs, or surrogates--one static (storyboard) and one dynamic (slide show)--on two distinct information seeking tasks (gist determination and object recognition). (AEF)

Defines data mining and the three categories of data mining models: classification, clustering, and associations and sequencing. Discusses how specific text mining, knowledge management, and search engine vendors are developing products that will take the Web to the next level. (AEF)

Describes an approach for linking geographically distributed collections of metadata so that they are searchable as a single collection. Describes the infrastructure, discusses advantages of using linked collections of authoritative metadata as an alternative to using a keyword-indexing search engine for resource discovery, and examines other…

When systems of ordering, such as classifications and thesauri, are used, two mappings are involved: objects (documents) in the collection and searchers' queries. Four means to achieve this are: relative indexes; syndetic structures; entry vocabulary indexes; and human intermediaries. These forms can supplement and augment each other. The…

In this study, it is indicated that there is a statistically significant semantic relationship between highly cited publications and their citing publications in comparison to highly cited publications with no citing relationship, within the same topic literature. Visualizing this set of data, however, shows that citation-based data represents…

Two major research streams of information science, bibliometric mapping and document retrieval combined in the literature visualization movement with the implementation of VIRI (visual information retrieval interface). The capability now exists to quickly map the citation images of thousands of persons through AuthorLink, to map displays of…

Examines situations/purposes users have for searching the Web and perceptions of the textual features that assist users in characterizing documents/text retrieval in actual Web searches. The study employs a bottom-up approach to derive a set of genres built around actual use of the Web. After employing content-analytic techniques to derive a…

Presents a text summarization system and examines its validity by comparing automatically generated summaries with human-generated ones. Examines the accuracy of the system by evaluating the representativeness of cue verbs and basic sentence patterns, as well as the essential information in a summary. Also analyzes syntactic and semantic errors of…

Applying the expectancy-value theory of motivation to the Web environment, a site that stimulates the interest and curiosity of the user and provides meaningful content and activities may be considered a valuable Web site. The authors developed evaluation instruments that are intended for use by educators and students from grade one through…

How do you engage faculty in the task of developing student information literacy? This case study offers a model for incorporating information retrieval into a social science research project so that literacy becomes an intrinsic part of the course assignment. Students showed significant gains in database search and assessment skills with minimal…

Student information systems, one of the first applications of computer technology in education, are undergoing a significant transition yet again. The first major shift in SIS technologies occurred about 15 years ago when they evolved from mainframe programs to client-server solutions. Now, vendors across the board are offering centralized…

This study tested the hypothesis that children with high working memory capacities solve single-digit additions by direct retrieval of the answers from long-term memory more often than do children with low working memory capacities. Counting and reading letter span tasks were administered to groups of third-grade (mean age=107 months) and…

As the Internet becomes a resource in the classroom, students must learn to glean maximally from that information using skills that enhance their understandings. Students engage in activities involved with Internet searching to the degree that they are skilled and motivated. This article reports on a research study that demonstrates that the model…

A survey of a group of distance graduate students showed their strong preference for easy and fast information retrieval and a significant association between motivation for using information and field of study. Motivation and field of study also explained differences in primary information source selection and use of home institution libraries.

The goal of this work is to extend the theoretical understanding of the relationship between hippocampal spatial and memory functions to the level of neurophysiological mechanisms underlying spatial navigation and episodic memory retrieval. The proposed unifying theory describes both phenomena within a unique framework, as based on one and the…