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On Lossless Transformation of Database Schemes Not Necessarily Satisfying Universal Instance Assumption (preliminary version)

Summary: Lossless transformation for multirelational schemes without the universal-relation assumption; two notions (CWA, OWA), OWA more tractable. Algorithm to test losslessness and synthesize inverse mappings for mappings built from projection, product, restriction; handles broad dependency classes and characterizes inclusion dependencies with the finite-chase property. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID
705
Venue
PODS
Year
1984
Pagerank
5.093636e-05
Overall Rank
13,233 | 9.21%
DOI
10.1145/588011.588049

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BibTeX Citation

@inproceedings{imielinski_pods84,
        address = {New York, NY, USA},
        series = {{PODS} '84},
        title = {{On Lossless Transformation of Database Schemes Not Necessarily Satisfying Universal Instance Assumption (preliminary version)}},
        url = {https://dl.acm.org/doi/10.1145/588011.588049},
        doi = {10.1145/588011.588049},
        booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
        publisher = {Association for Computing Machinery},
        author = {Imielinski, Tomasz and Spyratos, Nicolas},
        year = {1984}
}

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