Embedding Expert Knowledge and Hypothetical Data Bases into a Data Base System

Summary: Introduces hypothetical databases (HDBs) and 'experts' to embed semantic knowledge in a DBMS without schema changes or exposing expert internals. Proposes dynamic containment (vessels), convoy/group semantics, distance, and temporal constraints as first-class notions for location and timing, enabling practical integration. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID: h4d3fdcc3faf813b7
Venue: SIGMOD
Year: 1980
Pagerank: 6.6659583e-05
Overall Rank: 4,322 | 70.95%
DOI: 10.1145/582250.582261

Incoming Non-self Citations Over Time

Authors

1. Michael Stonebraker (University of California Berkeley)
2. Kenneth Keller (University of California Berkeley)

BibTeX Citation

@inproceedings{stonebraker_sigmod80,
        title = {{Embedding Expert Knowledge and Hypothetical Data Bases into a Data Base System}},
        author = {Stonebraker, Michael and Keller, Kenneth},
        series = {{SIGMOD} '80},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/582250.582261},
        url = {https://dl.acm.org/doi/10.1145/582250.582261},
        year = {1980}
}

Incoming Citations (Sorted by Pagerank)

Showing 7 of 7 citing papers.

Rank	Citing Paper	Year	Venue	Pagerank
720	TIMBER: A Sophisticated Relation Browser	1982	VLDB	0.00014528145
1,126	Quel As A Data Type	1984	SIGMOD	0.00011920289
1,712	Hypothetical Data Bases As Views	1981	SIGMOD	9.8177882e-05
2,752	An Implementation of Hypothetical Relations	1983	VLDB	8.0556787e-05
3,425	Incorporating Computed Relations in Relational Databases	1981	SIGMOD	7.3115645e-05
4,071	Remotely-Sensed Geophysical Databases: Experience and Implications for Generalized DBMSs	1983	SIGMOD	6.8207825e-05
7,486	Transaction Management In An Object-Oriented Database System	1988	SIGMOD	5.5122463e-05

Outgoing Citations (Sorted by Pagerank)

Showing 4 of 4 cited papers.

Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.

Rank	Cited Paper	Year	Venue	Pagerank
10	Extending the Data Base Relational Model to Capture More Meaning	1979	SIGMOD	0.00075944947
59	Differential Files: Their Application To The Maintenance Of Large Data Bases	1976	SIGMOD	0.00039605949
87	Implementation of Integrity Constraints and Views by Query Modification	1975	SIGMOD	0.00035719146
847	The Semantic Data Model: A Modelling Mechanism for Data Base Applications	1978	SIGMOD	0.00013507676

Semantically Similar Papers

#	Overall Rank	Paper	Year	Venue
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2	1,712	Hypothetical Data Bases As Views	1981	SIGMOD
3	2,548	Querying Database Knowledge	1990	SIGMOD
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5	2,936	How Does an Expert System Get Its Data?	1983	VLDB
6	610	Active Databases as a Paradigm for Enhanced Computing Environments	1983	VLDB
7	14,771	Knowledge Bases and Database Engineering	1986	VLDB
8	14,804	Databases for Expert Systems	1984	VLDB
9	13,450	A Data/Knowledge Base Management Testbed and Experimental Results on Data/Knowledge Base Query and Update Processing	1988	SIGMOD
10	13,481	Expert Database Support for Consistent Dynamic Objects	1987	VLDB