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Evaluation of Text-Based and Image-Based Representations for Moving Image Documents

Description: Document representation is a fundamental concept in information retrieval (IR), and has been relied upon in textual IR systems since the advent of library catalogs. The reliance upon text-based representations of stored information has been perpetuated in conventional systems for the retrieval of moving images as well. Although newer systems have added image-based representations of moving image documents as aids to retrieval, there has been little research examining how humans interpret these different types of representations. Such basic research has the potential to inform IR system designers about how best to aid users of their systems in retrieving moving images. One key requirement for the effective use of document representations in either textual or image form is thedegree to which these representations are congruent with the original documents. A measure of congruence is the degree to which human responses to representations are similar to responses produced by the document being represented. The aim of this study was to develop a model for the representation of moving images based upon human judgements of representativeness. The study measured the degree of congruence between moving image documents and their representations, both text and image based, in a non-retrieval environment with and without task constraints. Multidimensional scaling (MDS) was used to examine the dimensional dispersions of human judgements for the full moving images and their representations.
Date: August 1997
Creator: Goodrum, Abby A. (Abby Ann)
Partner: UNT Libraries

Increasing Telecommunications Channel Capacity: Impacts on Firm Profitability

Description: In calling for the deployment of high-capacity telecommunications infrastructures, the Clinton Administration is relying on market forces to drive demand toward self-sustaining development. There is little doubt that many firms will embrace the new telecommunications services for a variety of reasons including market differentiation, vertical market integration, and other organization-specific factors. However, there is little evidence at the firm level that adopting the use of increased-capacity telecommunications technologies is associated with improvements in firm profitability. This study seeks to identify the presence of impacts on firm income that can be associated with the adoption of T1 telecommunications services.
Date: August 1997
Creator: Clower, Terry L.
Partner: UNT Libraries

Information Seeking in a Virtual Learning Environment

Description: Duplicating a time series study done by Kuhlthau and associates in 1989, this study examines the applicability of the Information Search Process (ISP) Model in the context of a virtual learning environment. This study confirms that students given an information seeking task in a virtual learning environment do exhibit the stages indicated by the ISP Model. The six-phase ISP Model is shown to be valid for describing the different stages of cognitive, affective, and physical tasks individuals progress through when facing a situation where they must search for information to complete an academic task in a virtual learning environment. The findings in this study further indicate there is no relationship between the amount of computer experience subjects possess and demonstrating the patterns of thoughts, feelings, and actions described by the ISP Model. The study demonstrates the ISP Model to be independent of the original physical library environments where the model was developed. An attempt is made to represent the ISP model in a slightly different manner that provides more of the sense of motion and interaction among the components of thoughts, feelings, and action than is currently provided for in the model. The study suggests that the development of non-self-reporting data collection techniques would be useful in complementing and furthering research to enhance and refine the representation of the ISP Model. Additionally, expanding the research to include the examination of group interaction is called for to enhance the ISP Model and develop further applications that could potentially aid educational delivery in all types of learning environments.
Date: August 1999
Creator: Byron, Suzanne M.
Partner: UNT Libraries

Plans for Establishing and Developing the Social Research Studies and Information Center Libraries in Saudi Arabia

Description: The problem was to define the present status of the Social Research Studies and Information Center libraries in Saudi Arabia and to suggest ways in which they could be improved. The purposes of the study were two-fold: (1) to analyze and evaluate the current status of these libraries and to develop and improve the role and functions of these libraries; and (2) to consider the possibility of cooperation between these libraries.
Date: August 1990
Creator: Kahtani, Abdullah S. Mossa (Abdullah Salem Mossa)
Partner: UNT Libraries

User Satisfaction in a Government Library : A Case Study of the Ministry of Foreign Affairs in Saudi Arabia

Description: The problem of this study was the lack of knowledge about user satisfaction with the library services which are provided at the library of the Ministry of Foreign Affairs (MFA) in Saudi Arabia. The purposes of the study were twofold: (1) to measure, evaluate, and analyze user satisfaction with the library services provided at the MFA Library for the employees; and (2) to develop a model for evaluation of user satisfaction of library services in government libraries in Saudi Arabia.
Date: August 1991
Creator: Tameem, Jamal Abbas
Partner: UNT Libraries