Discusses the problem of how to permit a patron to represent the relative importance of various index terms in a Boolean request while retaining the desirable properties of a Boolean system. (FM)

Examines a selection of innovative search tools that attempt to solve specific problems in searching. Topics include search difficulties, including controlled vocabularies and keyword searching; retrieval issues, including relevancy ranking; document discrimination problems; creating search tools for specific audiences; and interface design,…

An analysis of the punctuation of the eighth edition Library of Congress Subject Headings reveals that the hyphen, coma and parentheses are most often used. Examples of these and the use of the apostrophe, dash, and period are discussed. (Author/MBR)

Discussion of precision in information retrieval highlights a prototype online catalog, ILSA (Improving Library Subject Access), developed at Indiana University of Pennsylvania that uses subject clusters and classification. Topics addressed include problems with keyword searching, controlled vocabulary, and thesauri; natural language mapping…

The purpose of this document is to highlight some of the difficulties associated with retrieving information on Iran using Library of Congress Subject Headings (LCSH) and several other commonly used reference tools based on LCSH. Four subject areas concerning Iran are identified, and their treatment in LCSH and periodical indexes is analyzed. The…

Discusses problems with subject searches in online library catalogs and examines theoretical principles for the design of effective information retrieval systems. Probabilistic ranking methods are discussed, and an experimental online catalog called CHESHIRE is described. It is noted that CHESHIRE uses classification clustering, provides natural…

The problems most frequently encountered in subject searching of the NY Times Information Bank are currency, multiconcept terms, generic descriptors, and verbosity. Vocabulary modifications are proposed and suggestions offered to help searchers overcome these problems and reduce their online connect time. These suggestions decreased the New York…

Discussion of indexing needs for film and video images focuses on appropriate access points for the storage and retrieval of individual shots which have not yet been included in a production. A study at the National Film Board of Canada is described that investigated ways to index non-art images. (18 references) (LRW)

This essay addresses issue of uniformity or consistency in application of subject headings--as distinct from consistency among headings--to books on any given topic. Discussion covers purpose of subject headings or descriptors, reliability of choices made by catalogers when assigning subject headings, and card and online catalogs. (18 references)…

Discussion of problems with retrieval of records in library online public access catalogs (OPACs) focuses on an ongoing research project at the Indiana University of Pennsylvania (IUP) that has been trying to improve subject retrieval vocabulary control using natural and thesaural language and on the design of a good graphical user interface.…

Describes a study that examined the search behavior of remote users of the University of California MELVYL online public access catalog by analyzing the transaction logs. Highlights include the number of searches, databases searched, number of retrievals, constructing search commands, problems with search terms, and effectiveness of searches.…

Describes a study conducted at the University of Illinois to test the effectiveness of subject access in the online bibliographic catalog. Relevance is examined and possible methods of improving subject access are described. Results suggest that significant improvements are not possible within the constraints of existing subject cataloging…

This paper discusses problems and opportunities, presented by the information explosion and the growth of the Internet, for libraries to apply and augment traditional methods of cataloging. The first section provides an overview of how the process of cataloging evolved, including the development of the Anglo-American Cataloging Rules (AACR),…

Discusses subject searching problems in online library catalogs; explains advanced information retrieval (IR) techniques; and describes experiments conducted on a test collection database, CHESHIRE (California Hybrid Extended SMART for Hypertext and Information Retrieval Experimentation), which was created to evaluate IR techniques in online…

Presents an Intelligent Negotiating Neural Network Design Model for solving the problem of poor information retrieval in subject searches of online catalogs. The purpose of the network, its architecture, and three different sessions of the user interface are described. Nineteen figures showing screens of the three sessions are appended. (Contains…