While the influence of presentation formats have been widely studied in Bayesian reasoning tasks, we present the first systematic investigation of how presentation formats influence information search decisions. Four experiments were conducted across different probabilistic environments, where subjects (N = 2,858) chose between 2 possible search…

Many organizations have evolved since their early attempts to mount digital exhibits on the Web and are experimenting with ways to increase the scale of their digitized collections by utilizing archival finding aid description rather than resource-intensive collections and exhibits. This article examines usability research to predict how such…

This paper reports on a guided navigation system built on the textbook search engine developed at Anadolu University to support distance education students. The search engine uses Turkish Language specific language processing modules to enable searches over course material presented in Open Education Faculty textbooks. We implemented a guided…

Discovery tools are the next phase of library search systems. Illinois State University's Milner Library implemented EBSCO Discovery Service in August 2010. The authors conducted usability studies on the system in the fall of 2010. The aims of the study were twofold: first, to determine how Milner users set about using the system in order to…

Searching for relevant information on the web is an important aspect of distance learning. This activity is a challenge for visually impaired distance learners. While sighted people have the ability to filter information in a fast and non sequential way, blind persons rely on tools that process the information in a sequential way. Learning is…

"Social Navigation" for the Web has been created as a response to the problem of disorientation in information space. It helps by visualizing traces of behavior of other users and adding social affordance to the information space. Despite the popularity of social navigation ideas, very few studies of social navigation systems can be found in the…

In systems that support query-based searching, the presence of multilingual content affects the search technology and user interface components that support query formulation, document selection, and query refinement. A categorization-based selection model is described that is based on rapidly constructed word-by-word gloss translations. An…

Reviews problems with the World Wide Web that can be attributed to human error or ineptitude, and provides suggestions for improvement. Discusses poor Web design, poor use of search engines, and poor quality control by search engines and directories. (AEF)

Co-browsing is a synchronous class of collaborative applications, which allows a group of users to surf the Web together. Such an application can be deployed in an education environment in several ways. One example of where it can be used would be in courses that are project-oriented. Students would be required to collectively research or explore…

Focuses on human behavior in the information-seeking process, and identifies behaviors influencing the design of information retrieval system interfaces. Discusses the principles of saturation, concreteness, least resistance, familiarity, stimulation, certainty, simplicity, and following-form. (PEN)

Uses a simple model of an information retrieval (IR) technology to examine performance measures for IR systems. Shows that, if a user is employing a system optimally, then reasonable performance measures will tend to be relatively robust, or insensitive, to small variations in assumptions about the user's behavior. (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…

Presents a framework for modeling the content of information objects such as documents and video programs based on observation of how users interact with those objects in the course of information seeking and use. Identifies four categories of potentially observable user behaviors: examination, retention, reference, and annotation. (AEF)

As more information resources become accessible using computers, the digital interfaces to those resources need to be appropriate for all people. However, when it comes to digital libraries, the interfaces have typically been designed for older children or adults. The researchers have begun to develop a digital library interface that is…

Examines visual information needs as expressed in users' Web image queries; the data set consisted of 1,025,908 sequential queries from 211,058 users of EXCITE, a major Internet search service. Provides data on: image queries, image search sessions, and image terms. Discusses implications for the development of models for visual information…