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Krejci, Frantisek – Information Processing and Management, 1986
HIT methodology for conceptual data structure design is briefly described and exemplified. Main features of the methodology are the natural formalism of the description of conceptual schema, and an easy-to-understand graphical way of communication between both the designer and individual experts substituting future users. (Author/MBR)
Descriptors: Database Management Systems, Design Requirements, Diagrams, Models
Peer reviewed Peer reviewed
Niemi, Timo; Jarvelin, Kalervo – Information Processing and Management, 1992
Discusses deductive databases and database management systems (DBMS) and introduces a framework for advanced query formulation for end users. Recursive processing is described, a sample extensional database is presented, query types are explained, and criteria for advanced query formulation from the end user's viewpoint are examined. (31…
Descriptors: Criteria, Database Management Systems, Databases, Information Retrieval
Peer reviewed Peer reviewed
Ide, Nancy; And Others – Information Processing and Management, 1993
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…
Descriptors: Computational Linguistics, Database Management Systems, Dictionaries, Lexicography
Peer reviewed Peer reviewed
Chen, Zhengxin – Information Processing and Management, 1994
Investigates the role of information retrieval in the enhancement from database management to knowledge base management and considers the relationship between information retrieval and artificial intelligence. Highlights include unstructured databases; storage of internal forms of documents; an example with relational database operations; and…
Descriptors: Artificial Intelligence, Database Management Systems, Information Retrieval, Information Systems
Peer reviewed Peer reviewed
Motzkin, D. – Information Processing and Management, 1994
Describes fast, dynamic update algorithms for document retrieval systems. B-trees are discussed; the M-B-T file directory structure is explained; insertions and deletions in inverted files are described; and performance evaluation is discussed. An appendix provides the formal definition of an M-B-T directory. (Contains 18 references.) (LRW)
Descriptors: Algorithms, Database Management Systems, Information Retrieval, Subject Index Terms
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Eastman, Caroline M. – Information Processing and Management, 1989
Compares the performance of inverted and signature file organizations in handling incrementally specified Boolean queries to an information retrieval system. The discussion covers the impact of more sophisticated signature file organizations, related problems, and possible future work. (65 references) (CLB)
Descriptors: Algorithms, Comparative Analysis, Database Management Systems, Information Retrieval
Peer reviewed Peer reviewed
Craven, Timothy C. – Information Processing and Management, 1991
Discussion of graph-drawing algorithms compares and evaluates five algorithms for generated automatic graphic display of sentence dependency structures that have been implemented in the TEXTNET text structure management system. Evaluation criteria are discussed, and a test of the algorithms with a database of newspaper articles is described. (16…
Descriptors: Algorithms, Comparative Analysis, Database Management Systems, Databases
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Nishimoto, Hideki; Ura, Shoji – Information Processing and Management, 1989
Describes an interface mechanism called "complex view support" to be used with a relational database system (RDBS) in supporting increasingly complex distributed environments in automated library systems. The interface system refers queries to multidimensional tables as well as to flat tables on RDBS and is shown to efficiently support…
Descriptors: Data Processing, Database Management Systems, Information Retrieval, Library Automation
Peer reviewed Peer reviewed
Simmons, Robert F. – Information Processing and Management, 1987
Describes a prototype natural language text knowledge system (TKS) that was used to organize 50 pages of a handbook on artificial intelligence as an inferential knowledge base with natural language query and command capabilities. Representation of text, database navigation, query systems, discourse structuring, and future research needs are…
Descriptors: Database Management Systems, Databases, Discourse Analysis, Expert Systems
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Macleod, Ian A.; And Others – Information Processing and Management, 1987
Discussion of the need for distributed information retrieval systems focuses on a model system, Fulcrum FUL/Text. Differences from distributed database management systems are described; system design is discussed; implementation requirements are explained including remote operation calls (ROC's); and a prototype simulation model based on FUL/Text…
Descriptors: Computer Networks, Computer Simulation, Computer System Design, Database Management Systems
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Chen, H.; And Others – Information Processing and Management, 1994
Reports on two empirical studies that examined the nature and causes of information management indeterminism in an online research environment. A knowledge-based design for alleviating indeterminism which contains a system-generated thesaurus and an inferencing engine is proposed. (Contains 63 references.) (JLB)
Descriptors: Classification, Database Management Systems, Expert Systems, Information Management
Peer reviewed Peer reviewed
Deogun, Jitender S.; Raghavan, Vijay V. – Information Processing and Management, 1988
Discusses the motivation for integrating information retrieval and database management systems, and proposes a probabilistic retrieval model in which records in a file may be composed of attributes (formatted data items) and descriptors (content indicators). The details and resolutions of difficulties involved in integrating such systems are…
Descriptors: Database Management Systems, Feedback, Information Retrieval, Mathematical Models
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Blair, David C. – Information Processing and Management, 1988
Presents a relational logical model to support a sophisticated document retrieval system in which flexible forms of inferential and associative searching can be performed, and provides examples of ad hoc inquiries. Several problems of particular importance to document retrieval are discussed in terms of this model. (27 references) (Author/CLB)
Descriptors: Database Management Systems, Information Processing, Information Retrieval, Mathematical Models
Peer reviewed Peer reviewed
Burgess, Clifford; Swigger, Kathleen – Information Processing and Management, 1986
Describes the design of a database interface for infrequent users of computers which consists of a graphical display of a model of a database and a natural language query language. This interface was designed for and tested with physicians at the University of Texas Health Science Center in Dallas. (LRW)
Descriptors: Computer Graphics, Database Management Systems, Display Systems, Information Retrieval
Peer reviewed Peer reviewed
Morrissey, J. M.; And Others – Information Processing and Management, 1986
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…
Descriptors: Artificial Intelligence, Comparative Analysis, Database Management Systems, Databases