Proposes a model of knowledge-based information retrieval (KBIR) that is based on a hierarchical concept graph (HCG) which shows relationships between index terms and constitutes a hierarchical thesaurus as a knowledge base. Conceptual distance between a query and an object is discussed and the use of Boolean operators is described. (25…

Discusses telecommunications between computers and terminals and the software needed to transfer information files between computers. Technical management of computers and telecommunications in libraries is considered, computer networks are discussed, and a glossary of terms encountered in computer communications is presented. (Six references)…

Describes a system that was developed in Germany for natural language processing (NLP) to improve free text analysis for information retrieval. Techniques from empirical linguistics are discussed, system architecture is explained, and rules for dealing with conjunctions in dependency analysis for free text processing are proposed. (13 references)…

Discusses the use of optical character recognition (OCR) for inputting documents in an information retrieval system and describes a study that used an OCR-generated database and its corresponding corrected version to examine query evaluation in the presence of noisy data. Scanning technology, recognition technology, and retrieval technology are…

Presents a texture-based image-retrieval system for browsing large-scale aerial photographs. System components include texture-feature extraction, image segmentation and grouping, learning-similarity measure, and a texture-thesaurus model for fast search and indexing. Testing has demonstrated the system's effectiveness in searching and selecting…

Models administrative and operating costs surrounding a hypermedia database and identifies seven conditions for the cost justification of hypermedia. Concludes that cost considerations aside, hypermedia offers significant data retrieval benefits in accessing text, video, still pictures, and sound, and provides substantially better human…

Examines the use of automated storage and retrieval systems in industry and in libraries. Highlights include intellectual content; and a system being built for the University of Nevada Las Vegas that takes into account selection criteria, limited stack space, and storage of federal depository materials. (LRW)

Database Tomography (DT) is a system which includes algorithms for extracting multi-word phrase frequencies and performing phrase proximity analyses on any type of large textual database. DT was used to derive technical intelligence from a near-earth space (NES) database derived from the Science Citation Index and the Engineering Compendex.…

Proposes a composite feature measure which combines the shape and color features of an image based on a clustering technique. A similarity measure computes the degree of match between a given pair of images; this technique can be used for content-based image retrieval of images using shape and/or color. Tests the technique on two image databases;…

Discusses how an experienced educator's Web site recommendations can help learners use the World Wide Web in ways bookmarks alone cannot. Highlights include browser-based and page-based annotations; examples; useful information to include (title or topic, operating instructions, description, special site features, cautions, and helpful…

Originally written in the 1950s, this article addresses the question of subdividing and grouping entries under a given author as a main entry that paved the way for the American Library Association's Catalog Code Revision of 1967. It also includes referee responses by Elaine Svenonius, Allyson Carlyle, and Michael Carpenter. (LRW)

Considers what library outreach means in the age of networked information and suggests that outreach should focus more on libraries and librarians as resources for advice on how to search in general, rather than where to find familiar information. Discusses use of the Internet and search engines. (LRW)

Investigates how to improve the performance of an Arabic Information Retrieval System (Arabic-IRS) by imposing the retrieval method, Mixed Stemming, over individual words of a query depending on the importance of the word, the stem or the root of the query terms in the database. This method computes term importance using a Term Frequency and…

Describes the VISION (video indexing for searching over networks) digital video library system which was developed at the University of Kansas as a testbed for evaluating automatic and comprehensive mechanisms for library creation and content-based search and retrieval of video over local and wide area networks. Discusses experimental results.…

Describes the origin of the DOI (Digital Object Identifier) as a persistent identifier for managing copyrighted materials and its development; creation of the U.S. Navy digital health sciences library for isolated primary care providers and their patients; Cornell and CNRI prototype architecture for interoperable digital objects and repositories;…