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| Database Design | 3 |
| Information Retrieval | 3 |
| Models | 3 |
| Users (Information) | 2 |
| Access to Information | 1 |
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| Watters, Carolyn | 3 |
| Shepherd, Michael A. | 2 |
| Salminen, Airi | 1 |
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Peer reviewedSalminen, Airi; Watters, Carolyn – Journal of the American Society for Information Science, 1992
Introduces a hypertext data model for textual databases in which the text is divided into a syntactic structure, which describes the relationships of the text parts, and an access structure, which is generated from the syntactic structure by users' queries. Implementation considerations for the structuring component, retrieval component, and…
Descriptors: Context Free Grammar, Database Design, Full Text Databases, Hypermedia
Peer reviewedWatters, Carolyn; Shepherd, Michael A. – Information Processing and Management, 1994
Discusses the shift of information access from a data-centered to a user-centered model and describes the Daltext system, a prototype user-centered information system that allows the user to determine how the data will be viewed (i.e., within a datastream model, a set model, a relational model, and/or a hierarchical model). (Contains 30…
Descriptors: Access to Information, Data Processing, Database Design, Information Retrieval
Shepherd, Michael A.; Watters, Carolyn – Proceedings of the ASIS Mid-Year Meeting, 1992
Characterizes information retrieval systems in a network environment from a user's perspective along two axes: query and presentation. Several examples of early, current, and developing information retrieval systems are considered within this framework, and Daltext, a prototype system to support research on text-based retrieval systems, is…
Descriptors: Classification, Computer Networks, Database Design, Information Networks
