Presents a method for augmenting a Standard Generalized Markup Language (SGML) document repository with database functionality. Introduces an implementation method for a complex-object modeling technique, and describes interface techniques tailored for text databases and concepts for a Structured Document Database Management System (SDDBMS)…

Proposes a new lock primitive called ordered sharing that allows increased concurrency in database systems. Reliability and performance issues of the proposed protocol are addressed, a simulation study that demonstrates that ordered sharing results in improved performance in database systems is described; and use in several representative database…

Reports on a project showing that relational data models, including unnormalized models that allow the nesting of relations, cannot fully capture the structural properties of lexical information. A feature-based model that allows for a full representation of some nesting and defines a factoring mechanism is described and demonstrated. (38…

Proposes a fuzzy-image database model and a concept of fuzzy space; describes fuzzy-query processing in fuzzy space and fuzzy indexing on complete fuzzy vectors; and uses an example image database, the computer-aided facial-image inference and retrieval system (CAFIIR), for explanation throughout. (Author/LRW)

Proposes a "Model of Querying" for users of office filing facilities and discusses its motivation, aspects, attributes, and advantages. A review of current information systems and attempts to combine information retrieval, artificial intelligence, and database management techniques leads to conclusion that no resultant system is adequate…

This paper reports on the evolution of a software environment called ClassACT (Class Annotation and Collaboration Tool) from a simple multimedia annotation program to a multi-domain archival database management system. ClassACT was developed at Northwestern University (Illinois) for instructional use, and, although its original goal was to solve a…

The Federal Government is introducing a new funding model for research in Australian higher education institutions, the Research Quality Framework (RQF). This paper provides an overview of the RQF and looks at possible impacts of the RQF on academic libraries in Australia. These impacts are drawn from experience at one Australian university,…

Shared databases are used for knowledge exchange in groups. Whether a person is willing to contribute knowledge to a shared database presents a social dilemma: Each group member saves time and energy by not contributing any information to the database and by using the database only to retrieve information which was contributed by others. But if…

The current study replicates work of Regional Educational Laboratory (REL) Northeast and Islands. It describes dropout prevention programs in nine Mid-Atlantic Region (Delaware, the District of Columbia, Maryland, New Jersey, and Pennsylvania) school districts serving communities with populations of 24,742-107,250 (as of July 2008). All nine…

Computer based information search services, ISS's, of the type that provide on-line literature searches are analyzed from a system's viewpoint using a continuous simulation model. The analysis shows that the observed growth and stagnation of a typical ISS can be explained as a natural consequence of market responses to the service together with a…

The National Commission on the Financing of Postsecondary Education (NCFPE) developed a comprehensive analytical framework--a process--to evaluate the alternative financing proposals for postsecondary education. This staff report describes this framework, placing special emphasis on two of its major components--a data base and an analytical model.…

Describes the experience accumulated by the United Nations and its agencies during the last decade in the international information system field. Bibliographic, statistical, and resource systems are described, and common features are identified; in addition, a model for strengthening national information capabilities and for sharing information is…

Proposes that the development of document-retrieval systems can benefit from the incorporation of conceptual modeling techniques, specifically classification, aggregation, and generalization. An array model is presented which has been designed especially for document retrieval. (Author/EM)

The authors formulate a model of a computerized information system linking the manpower needs of a state with the output of the educational institutions, in order to match job-openings with qualifications of those leaving school." (Authors/AA)

Describes a conceptual model for bibliographic data called Maestro (Management Environment for Structured Text Retrieval and Organization) that is being developed both to support structured documents in databases, and to provide a query language to link information contained in these structures. Traditional text retrieval systems are discussed,…