ACM Home Page
Please provide us with feedback. Feedback
The P2 algorithm for dynamic calculation of quantiles and histograms without storing observations
Full text PdfPdf (837 KB)
Source
Communications of the ACM archive
Volume 28 ,  Issue 10  (October 1985) table of contents
Pages: 1076 - 1085  
Year of Publication: 1985
ISSN:0001-0782
Authors
Raj Jain  Digital Equipment Corporation, Hudson, MA
Imrich Chlamtac  Technion Israel Institute of Technology, Haifa, Israel
Publisher
ACM  New York, NY, USA
Bibliometrics
Downloads (6 Weeks): 13,   Downloads (12 Months): 69,   Citation Count: 24
Additional Information:

abstract   references   cited by   index terms   review   collaborative colleagues  

Tools and Actions: Request Permissions Request Permissions    Review this Article  
DOI Bookmark: Use this link to bookmark this Article: http://doi.acm.org/10.1145/4372.4378
What is a DOI?

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.

 
1
Buchholz, W. File organization and addressing. IBM Syst. 1. 2, (196% 66-111.
 
2
Knott, G.D. Hashing functions. Cornput. 1. 18. 3 (1975). 265-276.
 
3
 
4
Pearson, ES.. and Hartley, H.O. Biometrikn, Tables for Stotisticinns. Cambridge University Press, Cambridge, 1972.
 
5
Peterson, W.W. Addressing for random access storage. IBM I. Res. Develop. 1. 2 (Apr. 1957). 130-146.
 
6
Van der Pool, J.A. Optimum storage allocation for initial loading of a file. IBM J. Res. Develop. 16 (Nov. 1972), 579-586.
7

CITED BY  24


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...

Collaborative Colleagues:
Raj Jain: colleagues
Imrich Chlamtac: colleagues