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An Implementation of GEM — supporting a semantic data model on a relational back-end.

Summary: Implements GEM on INGRES, extending relational model with surrogates, aggregation/generalization, nulls, and multi-valued attributes. Back-end IDM 500 provides transactions, concurrency, and recovery, enabling semantic constructs on a relational processor. (summarized by gpt-5-nano on Feb 09 2026)

Paper ID
h37bee811359350d7
Venue
SIGMOD
Year
1984
Pagerank
7.7609063e-05
Overall Rank
2,991 | 79.96%
DOI
10.1145/602259.602297

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{tsur_sigmod84,
        title = {{An Implementation of GEM — supporting a semantic data model on a relational back-end.}},
        author = {Tsur, Shalom and Zaniolo, Carlo},
        series = {{SIGMOD} '84},
        booktitle = {Proceedings of the {ACM} {SIGMOD} International Conference on Management of Data},
        publisher = {Association for Computing Machinery},
        doi = {10.1145/602259.602297},
        url = {https://dl.acm.org/doi/10.1145/602259.602297},
        year = {1984}
}

Incoming Citations (Sorted by Pagerank)

Showing 9 of 9 citing papers.

Rank Citing Paper Year Venue Pagerank
97 The Database Language GEM 1983 SIGMOD 0.00034172656
866 The Representation and Deductive Retrieval of Complex Objects 1985 VLDB 0.00013342501
3,230 Mapping a Semantic Database Model to the Relational Model 1987 SIGMOD 7.4931075e-05
3,306 Implementation of a Compiler for a Semantic Data Model: Experiences with Taxis 1987 SIGMOD 7.4207248e-05
5,764 ARIEL -- A Semantic Front-End to Relational DBMSs 1985 VLDB 5.9839681e-05
6,387 SIM: A Database System Based on the Semantic Data Model 1988 SIGMOD 5.78729e-05
6,930 O-O, What Have They Done to DB2? 1999 VLDB 5.6273063e-05
8,322 Managing Complex Objects in an Extensible Relational DBMS 1989 VLDB 5.3398181e-05
13,517 A Database Design for Musical Information 1987 SIGMOD 4.9605343e-05
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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
97 The Database Language GEM 1983 SIGMOD 0.00034172656
145 A Language Facility for Designing Interactive Database-Intensive Applications 1978 SIGMOD 0.00028989663
631 Database Relations with Null Values (Extended Abstract) 1982 PODS 0.00015384005
1,492 Storage and Access Structures to Support a Semantic Data Model 1982 VLDB 0.00010475268
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