Presents a prototype system for image retrieval from the Internet using Web mining. Discusses the architecture of the Web image retrieval prototype; document space modeling; user log mining; and image retrieval experiments to evaluate the proposed system. (AEF)

Searching for useful information on the World Wide Web has become increasingly difficult. While Internet search engines have been helping people to search on the Web, low recall rate and outdated indexes have become more and more problematic as the Web grows. In addition, search tools usually present to the user only a list of search results,…

This article compares the Web search engines Google and Teoma. Google is found to have better variety, the ability to save Web sites, flexibility, better coverage, and the ability to use Boolean logic. While Teoma wins the originality award, it is otherwise found to be limited. (CR)

End user searching on the Web has become the primary method of locating images for many people. This study investigates the nature of Web image queries by attempting to map them to known image classification schemes. In this study, approximately 100,000 image queries from a major Web search engine were collected in 1997, 1999, and 2001. A…

Presents the results of an exploratory study that focused on three elements in information retrieval research: the ways information systems are being used, the strategies users engage as they work in these systems, and the use of the World Wide Web as an information retrieval tool. Highlights include open-ended systems and self-efficacy.…

Examines whether the results obtained from a specific bibliographic search can be applied to a real search environment and enhance the level of utility of an information retrieval session for all levels of users. Focuses on a Web-based Bibliometric Information Retrieval System (BIRS), designed with facilities to assist users in getting a better…

Compares features and search performances of three popular Web-based search services: InfoSeek, Lycos, and OpenText. Five queries were used to conduct searches with these services. There was a low level of result overlap among the services; none of the services provide good output control for users. Includes recommendations for improvements in…

Presents six principles for building and evaluating Web-based information retrieval interfaces: help the user develop an understanding of the interface and search process, judge the value of continuing search paths, and refine search queries or search topics; avoid complex navigation; make system actions explicit; and provide verbal labels…

In the context of exploring educational hypermedia on the World Wide Web, this paper presents a history visualization that helps learners reorganize explored contents to find what Web sites they should visit next. Learning-by-exploration is discussed as it relates to educational hypermedia, including the "Get Lost in Hyperspace" problem,…

Introduces a personalization approach in a traditional information retrieval system. Describes extensions of integrating collaboration in personalization in the Web retrieval environment, based on differences in the nature of documents, users and search tasks between traditional and Web retrieval environments. Presents a user-oriented evaluation…

The guide provides a quick reference to the database, services, and additional resources of the ERIC System that may be of use in adult English-as-a-Second-Language (ESL) literacy work. It first explains the role of the National Clearinghouse for ESL Literacy Education, then describes the ERIC database and the kinds of adult ESL literacy materials…

This study tested two Web personal spiders (i.e., agents that take users' requests and perform real-time customized searches) based on best first-search and genetic-algorithm techniques. Both results were comparable and complementary, although the genetic algorithm obtained higher recall value. The Java-based interface was found to be necessary…

The purpose of this study was to identify the strategies used by learners in an open-ended hypermedia information system. Four participants were drawn from an introductory technology-for-teachers course incorporating a unit on telecommunications. Participants completed a survey measuring reported knowledge in three domains (metacognitive, system,…