| The P2 algorithm for dynamic calculation of quantiles and histograms without storing observations |
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Communications of the ACM
archive
Volume 28 , Issue 10 (October 1985)
table of contents
Pages: 1076 - 1085
Year of Publication: 1985
ISSN:0001-0782
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Authors
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Raj Jain
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Digital Equipment Corporation, Hudson, MA
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Imrich Chlamtac
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Technion Israel Institute of Technology, Haifa, Israel
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| Bibliometrics |
Downloads (6 Weeks): 13, Downloads (12 Months): 69, Citation Count: 24
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ABSTRACT
A heuristic algorithm is proposed for dynamic calculation of the median and other quantiles. The estimates are produced dynamically as the observations are generated. The observations are not stored; therefore, the algorithm has a very small and fixed storage requirement regardless of the number of observations. This makes it ideal for implementing in a quantile chip that can be used in industrial controllers and recorders. The algorithm is further extended to histogram plotting. The accuracy of the algorithm is analyzed.
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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Buchholz, W. File organization and addressing. IBM Syst. 1. 2, (196% 66-111.
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Knott, G.D. Hashing functions. Cornput. 1. 18. 3 (1975). 265-276.
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Pearson, ES.. and Hartley, H.O. Biometrikn, Tables for Stotisticinns. Cambridge University Press, Cambridge, 1972.
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Peterson, W.W. Addressing for random access storage. IBM I. Res. Develop. 1. 2 (Apr. 1957). 130-146.
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Van der Pool, J.A. Optimum storage allocation for initial loading of a file. IBM J. Res. Develop. 16 (Nov. 1972), 579-586.
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CITED BY 24
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Anna C. Gilbert , Yannis Kotidis , S. Muthukrishnan , Martin J. Strauss, How to summarize the universe: dynamic maintenance of quantiles, Proceedings of the 28th international conference on Very Large Data Bases, p.454-465, August 20-23, 2002, Hong Kong, China
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REVIEW
"Leonard Francis Zettel, Jr. : Reviewer"
.abstract
A heuristic algorithm is proposed for dynamic calculation of the median and
other quantiles. . . . [T]he algorithm has a very small and fixed
storage requirement regardless of the number of observations. . . . The
algorithm is further
more...
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