Counting Distinct Elements in a Data Stream

@inproceedings{BarYossef2002CountingDE,
  title={Counting Distinct Elements in a Data Stream},
  author={Ziv Bar-Yossef and T. S. Jayram and Ravi Kumar and D. Sivakumar and L. Trevisan},
  booktitle={RANDOM},
  year={2002}
}
  • Ziv Bar-Yossef, T. S. Jayram, +2 authors L. Trevisan
  • Published in RANDOM 2002
  • Computer Science
  • We present three algorithms to count the number of distinct elements in a data stream to within a factor of 1 ± ?. Our algorithms improve upon known algorithms for this problem, and offer a spectrum of time/space tradeoffs. 

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