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Data Mining and Knowledge Discovery

, Volume 12, Issue 1, pp 119–119 | Cite as

An Erratum on #x201C;Pushing Convertible Constraints in Frequent Itemset Mining#x201D;

  • Jian PeiEmail author
  • Jiawei Han
  • Laks V. S. Lakshmanan
Erratum

In our paper “Pushing Convertible Constraints in Frequent Itemset Mining” (Data Mining and Knowledge Discovery: An International Journal, Volume 8, Issue 3, page 227--252, Kluwer Academic Publishers, May, 2004), there are some typos.

In Definition 4.2, function f should be h.

In the proof of Lemma 4.2,

  • “(1) f is a prefix ascending function w.r.t. descending order and Cf(S) ≥ v.” should be “(1) f is a prefix descending function w.r.t. descending order and Cf(S) ≥ v.”

  • “(2) f is a prefix descending function w.r.t. ascending order and Cf(S) ≤ v.” should be “(2) f is a prefix ascending function w.r.t. ascending order and Cf(S) ≤ v.”

  • “Suppose f(α ∪ {ai}) < vS” should be “Suppose f(α ∪ {ai}) < v”.

We thank Zhibo Ren and Qiang Zhang for pointing out some of these typos.

Copyright information

© Springer Science+Business Media, Inc 2005

Authors and Affiliations

  1. 1.Simon Fraser UniversityBurnaby, B.C.Canada
  2. 2.University of Illinois at Urbana-ChampaignUrbanaU.S.A.
  3. 3.University of British ColumbiaVancouver, B.C.Canada

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