Cognitive Systems Engineering (CSE) has a history built, in part, on leveraging representational design to improve system performance. Traditionally, however, CSE has focused on visual representation of "monitored" processes--active, ongoing, and interconnected activities occurring in a system of interest and monitored by human…

This article examines how finding aids are structured and delivered, considering alternative approaches. It suggests that single-level displays, those that present a single component of a multilevel description to users at a time, have the potential to transform the delivery and display of collection information while improving the user…

Despite widespread acknowledgement that Internet access in libraries and schools is filtered, the effects of that filtering on faculty who must utilize such a system for research, teaching, and curriculum development in American higher education are not known. This qualitative case study explored faculty experiences of Internet filtering in terms…

My dissertation contains three studies centering on the question: how to motivate people to share high quality information on online information aggregation systems, also known as social computing systems? I take a social scientific approach to "identify" the strategic behavior of individuals in information systems, and "analyze" how non-monetary…

With the advent of the World Wide Web, many business applications that utilize data mining and text mining techniques to extract useful business information on the Web have evolved from Web searching to Web mining. It is important for students to acquire knowledge and hands-on experience in Web mining during their education in information systems…

Millennial students make up a large portion of undergraduate students attending colleges and universities, and they have a variety of online resources available to them to complete academically related information searches, primarily Web based and library-based online information retrieval systems. The content, ease of use, and required search…

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,…

Proposes an alternative real valued representation of color based on the information theoretic concept of entropy. A theoretical presentation of image entropy is accompanied by a practical description of the merits and limitations of image entropy compared to color histograms. Results suggest that image entropy is a promising approach to image…

Discusses indexing and access to digital resources, especially on the Internet. Topics include subject searching versus indexing; multiple terms of access; folk classification; basic level terms; folk access; Bradford's Law; Zipfian distributions; vocabulary scalability; the Resnikoff-Dolby 30:1 Rule; domain-specific indexing; and implications for…

Describes a theoretically and empirically based framework for how users formulate and employ information-seeking strategies in open-ended information systems (OEISs). Discusses challenges related to OEISs. Describes OEIS theoretical and users' perspectives. Presents an example based on a recent study to illustrate use of the OEIS…

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…

Reports on an experiment conducted using the "AntWorld" system, a collaborative information finding system for the Internet, to explore the effect of added motivation on users' behavior. Findings suggest that for the system to be effective, users must be motivated either by the environment, or by incentives within the system. (Author/AEF)

Describes research that consists of: development of a taxonomy of development of: IR tasks based on real users, a taxonomy of IR strategies that are general across different IR systems, a descriptive model of expert performance, a prescriptive model of effective performance, and design and evaluation of a pedagogical approach to teach the…