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Huang, Jia – ProQuest LLC, 2014
Information retrieval (IR) systems have tremendously broaden users' access to information. However, users need to select their needs from trillions of information indexed daily. Due to the "semantic gap" between queries and indexed terms in IR system, whether users can satisfy their needs depends on whether they use the correct terms as…
Descriptors: Information Retrieval, Information Needs, Documentation, Information Systems
Liu, Jiahui – ProQuest LLC, 2009
The web is a rich and diverse information source with incredible amounts of information about all kinds of subjects in various forms. This information source affords great opportunity to build systems that support users in their work and everyday lives. To help users explore information on the web, web search systems should find information that…
Descriptors: Online Searching, Web Sites, Search Engines, Information Systems

Figuerola, Carlos G.; Rodriguez, Angel Francisco Zazo; Berrocal, Jose Luis Alonso – Journal of Documentation, 2001
Describes an experiment in automatic categorization, which is based on the vector model, widely used in information retrieval. Shows how the construction of the class patterns was carried out. Discusses the evaluation measures adopted and results obtained in the automatic categorization of a collection of documents in Spanish. Describes the manual…
Descriptors: Automation, Classification, Information Retrieval, Information Sources
Kniefel, David R. – 1973
QUEST is an interactive conversational Programming System (CPS) that was developed to serve as a conversational interface between a searcher of the Educational Resources Information Center (ERIC) files and the North Carolina Science and Technology Research Center's Inverted File Search Program (STRC-IVS). This paper describes QUEST: its costs,…
Descriptors: Computer Programs, Flow Charts, Information Processing, Information Retrieval
Tang, Rong; Ng, K. B.; Strzalkowski, Tomek; Kantor, Paul B. – Proceedings of the ASIST Annual Meeting, 2003
Reports preliminary results of a study to develop and automate new metrics for assessment of information quality in text documents, particularly in news. Through focus group studies, quality judgment experiments, and textual feature extraction and analysis, nine quality aspects were generated and applied in human assessments. Experiments were…
Descriptors: Evaluation Methods, Information Processing, Information Retrieval, Information Sources
Ng, Kwong Bor; Kantor, Paul; Tang, Rong; Rittman, Robert; Small, Sharon; Song, Peng; Strzalkowski, Tomek; Sun, Ying; Wacholder, Nina – Proceedings of the ASIST Annual Meeting, 2003
Textual properties of documents were analyzed to identify predictive variables for various document qualities by means of statistical and linguistic methods. A collection of 1000 documents was created, and each document was judged in terms of nine document qualities (accuracy, reliability, objectivity, depth, author/producer credibility,…
Descriptors: Document Delivery, Information Retrieval, Information Sources, Information Systems

Hjorland, Birger – Journal of the American Society for Information Science and Technology, 2001
In information science, it is important to consider the nature and meaning of theories of aboutness, subject analysis and related concepts, which are closely related to theoretical and metatheoretical issues in information retrieval (IR). A theory of IR must specify which concepts should be regarded as synonymous concepts and explain how the…
Descriptors: Information Retrieval, Information Science, Information Seeking, Information Sources
Erickson, Richard C. – Man/Society/Technology, 1976
The article describes the Educational Resources Information Center (ERIC), an information retrieval system, and the Northern Illinois University Clearinghouse in Career Education (CICE), a part of the ERIC system that prepares information on industrial arts, and on adult, vocational and technical, and career education. (Author/BP)
Descriptors: Delivery Systems, Industrial Arts, Information Centers, Information Dissemination

Nelson, Carnot E. – Educational Researcher, 1974
The need for and probable use of a comprehensive abstract journal in educational research is called for as indicated by educational researchers' frequent use of the journal article, as opposed to the technical report, as a source of information. (AM)
Descriptors: Abstracting, Documentation, Educational Research, Information Needs

Nomoto, Tadashi; Matsumoto, Yuji – Information Processing & Management, 2003
Introduces a novel approach to unsupervised text summarization. Proposes an "information-centric" approach to evaluation, where the quality of summaries is judged not in terms of how well they match human-created summaries but in terms of how well they represent their source documents in information retrieval tasks such as document…
Descriptors: Cluster Analysis, Cluster Grouping, Electronic Text, Evaluation Methods

Culnan, Mary J. – Journal of the American Society for Information Science, 1985
Results of field study measuring end-user perceptions of sources of information (computer-based, libraries, individuals) suggest that accessibility is multidimensional concept encompassing physical access to source, interface with source, ability to physically retrieve potentially relevant information; and perceptions of accessibility are…
Descriptors: Field Studies, Information Retrieval, Information Services, Information Sources

O'Connor, Brian C. – Journal of Documentation, 1985
Examines fashioning of model for surrogate to facilitate user selection of appropriate film or video work for particular use. A matrix of time line and film or video document characteristics is proposed as primary aspect of surrogate graphic record, raising issues of description and sampling within abstracting process. (47 references) (EJS)
Descriptors: Abstracts, Films, Information Retrieval, Information Sources

Lynch, Clifford A. – Journal of the American Society for Information Science and Technology, 2001
Outlines a view of the changing framework for information retrieval suggested by the Web environment. Speculates about how some of these changes may manifest in upcoming generations of information retrieval systems. Sketches ideas about the broader context of trust management infrastructure that will be needed to support these developments, and…
Descriptors: Access to Information, Document Delivery, Information Retrieval, Information Seeking
Miller, L. L.; Honavar, Vasant; Barta, Tom – Proceedings of the ASIS Annual Meeting, 1997
Describes an extensible object-oriented view system that supports the integration of both structured and unstructured data sources in either the multidatabase or data warehouse environment. Discusses related work and data mining issues. (AEF)
Descriptors: Databases, Information Retrieval, Information Sources, Information Storage
Kaminecki, Ronald M.; And Others – 1975
Batch mode processing is compared, using cost-effectiveness, with on-line processing for computer-aided searching of chemical abstracts. Consideration for time, need, coverage, and adaptability are found to be the criteria by which a searcher selects a method, and sometimes both methods are used. There is a tradeoff between batch mode's slower…
Descriptors: Bibliographies, College Libraries, Comparative Analysis, Computers