Extending the Relational Algebra to Capture Complex Objects
Summary: Extends relational algebra with the molecule-atom data model (MAD) and molecule algebra to support networked objects, shared subobjects, and dynamic definitions. It provides precise semantics for MQL, enabling descriptive queries of complex objects. (summarized by gpt-5-nano on Feb 09 2026)
Incoming Non-self Citations Over Time
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Incoming Citations (Sorted by Pagerank)
Showing 3 of 3 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 7,003 | Support for Temporal Data by Complex Objects | 1990 | VLDB | 4.8660476e-05 |
| 12,895 | Realizing a Temporal Complex-Object Data Model | 1992 | SIGMOD | 4.1945683e-05 |
| 14,171 | PRIMA - A Database System Supporting Dynamically Defined Composite Objects | 1992 | SIGMOD | - |
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Outgoing Citations (Sorted by Pagerank)
Showing 9 of 9 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 272 | A DBMS Prototype to Support Extended NF2 Relations: An Integrated View on Flat Tables and Hierarchies | 1986 | SIGMOD | 0.00029426313 |
| 422 | Non First Normal Form Relations To Represent Hierarchically Organized Data | 1984 | PODS | 0.00023677809 |
| 440 | A Calculus for Complex Objects | 1986 | PODS | 0.00023084404 |
| 603 | A Data Model and Query Language for EXODUS | 1988 | SIGMOD | 0.00019351031 |
| 974 | The POSTGRES Data Model | 1987 | VLDB | 0.00014896625 |
| 1,052 | A Normal Form for Nested Relations | 1985 | PODS | 0.00014436103 |
| 1,689 | Molecular Objects, Abstract Data Types, and Data Models: A Framework | 1984 | VLDB | 0.00010905651 |
| 2,561 | Architecture and Implementation of the Darmstadt Database Kernel System | 1987 | SIGMOD | 8.5400984e-05 |
| 4,224 | PRIMA - a DBMS Prototype Supporting Engineering Applications | 1987 | VLDB | 6.3472736e-05 |
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Semantically Similar Papers
| Overall Rank | Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 120 | On The Semantics Of The Relational Data Model | 1975 | SIGMOD | 0.00045646715 |
| 3,444 | A Modal System of Algebras for Database Specification and Query/Update Language Support | 1983 | VLDB | 7.0871625e-05 |
| 632 | The Representation and Deductive Retrieval of Complex Objects | 1985 | VLDB | 0.00018923134 |
| 1,871 | Relations with Relation Names as Arguments: Algebra and Calculus | 1992 | PODS | 0.00010259891 |
| 13,041 | A Data Manipulation Model: An Extension Of The Alpha Expression | 1984 | VLDB | 4.1945683e-05 |
| 7,466 | Managing Complex Objects in an Extensible Relational DBMS | 1989 | VLDB | 4.7219717e-05 |
| 8,226 | An Implementation Model For Reasoning With Complex Objects | 1988 | SIGMOD | 4.5551494e-05 |
| 975 | Algebraic Support for Complex Objects with Arrays, Identity, and Inheritance | 1991 | SIGMOD | 0.00014893961 |
| 8 | Extending the Data Base Relational Model to Capture More Meaning | 1979 | SIGMOD | 0.0015385917 |
| 1,689 | Molecular Objects, Abstract Data Types, and Data Models: A Framework | 1984 | VLDB | 0.00010905651 |