Knowledge management in organizational planning
Journal of Management Information Systems - Special Issue: Decision Support and Knowledge-Based Systems
Anatomy of a compact user interface development tool
Communications of the ACM
Automatic text processing: the transformation, analysis, and retrieval of information by computer
Automatic text processing: the transformation, analysis, and retrieval of information by computer
Novel applications of information retrieval to the storage and management of computer models
Information Processing and Management: an International Journal
A dynamic signature technique for multimedia databases
SIGIR '90 Proceedings of the 13th annual international ACM SIGIR conference on Research and development in information retrieval
Partitioned posting files: a parallel inverted file structure for information retrieval
SIGIR '90 Proceedings of the 13th annual international ACM SIGIR conference on Research and development in information retrieval
Parallel text searching in serial files using a processor farm
SIGIR '90 Proceedings of the 13th annual international ACM SIGIR conference on Research and development in information retrieval
Three principles of representation for semantic networks
ACM Transactions on Database Systems (TODS)
Limitations of record-based information models
ACM Transactions on Database Systems (TODS)
Extending the database relational model to capture more meaning
ACM Transactions on Database Systems (TODS)
Implementing a generalized access path structure for a relational database system
ACM Transactions on Database Systems (TODS)
Signature files: an access method for documents and its analytical performance evaluation
ACM Transactions on Information Systems (TOIS)
A relational model of data for large shared data banks
Communications of the ACM
Information Retrieval
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Database management systems are powerful tools for processing large volumes of structured, or normalized, data. Much of the data to be stored in computer systems, however, differs from normalized data in both its logical uses and the storage structure required for its effective management. For instance, Van Rijsbergen (1979) distinguishes database retrieval from information retrieval (IR)—the retrieval of references to text—by comparing the following logical characteristics of IR systems to database management systems: IR Systems employ partial (vs. exact) matching; they are built on an underlying probabilistic (vs. deterministic) model; they classify information on a polythetic (vs. monothetic) basis, and queries are incompletely (vs. completely) specified. Similarly, other forms of relatively ill-structured data such as semantic networks [15]—which require property inheritance, and production rules—which must be joined in logical chains also differ in their logical use from normalized record structures.