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Database-friendly random projections
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Proceedings of the twentieth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems table of contents
Santa Barbara, California, United States
Pages: 274 - 281  
Year of Publication: 2001
ISBN:1-58113-361-8
Author
Dimitris Achlioptas  Microsoft Corporation, One Microsoft Way, Red-mond, WA
Sponsor
SIGMOD: ACM Special Interest Group on Management of Data
Publisher
ACM  New York, NY, USA
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Downloads (6 Weeks): 5,   Downloads (12 Months): 57,   Citation Count: 29
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ABSTRACT

A classic result of Johnson and Lindenstrauss asserts that any set of n points in d-dimensional Euclidean space can be embedded into k-dimensional Euclidean space where k is logarithmic in n and independent of d so that all pairwise distances are maintained within an arbitrarily small factor. All known constructions of such embeddings involve projecting the n points onto a random k-dimensional hyperplane. We give a novel construction of the embedding, suitable for database applications, which amounts to computing a simple aggregate over k random attribute partitions.


REFERENCES

Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

 
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S. Arora and R. Kannan. Learning mixtures of arbitrary Gaussians. Submitted, 2000.
 
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S. Dasgupta and A. Gupta. An elementary proof of the Johnson-Lindenstrauss lemma. Technical report 99-006, UC Berkeley, March 1999.
 
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W. B. Johnson and J. Lindenstrauss. Extensions of Lipschitz mappings into a Hilbert space. In Conference in modern analysis and probability (New Haven, Conn., 1982), pages 189-206. Amer. Math. Soc., Providence, R.I., 1984.
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N. Linial, E. London, and Y. Rabinovich. The geometry of graphs and some of its algorithmic applications. Combinatorica, 15(2):215-245, 1995.
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CITED BY  29

Collaborative Colleagues:
Dimitris Achlioptas: colleagues