Exact learning of DNF formulas using DNF hypotheses

  • Authors:
  • Lisa Hellerstein;Vijay Raghavan

  • Affiliations:
  • Polytechnic University, Brooklyn NY;Vanderbilt University, Nashville TN

  • Venue:
  • STOC '02 Proceedings of the thiry-fourth annual ACM symposium on Theory of computing
  • Year:
  • 2002

Quantified Score

Hi-index 0.00

Visualization

Abstract

(MATH) We show the following: For any &egr; ρ 0, (log n)(3 + &egr;)-term DNF cannot be polynomial-query learned with membership and strongly proper equivalence queries. For any function f(n) &egr; o [box] (&frac;√n \over log n) [end-box] , m-term DNF formulas cannot be polynomial-query learned by a membership and equivalence query algorithm that uses m &dotfill; f(n)-term DNF formulas as hypotheses. Read-thrice DNF formulas are not learnable with membership and proper equivalence queries. log n-term DNF formulas can be polynomial-query learned with membership and proper equivalence queries. (This complements a result of Bshouty, Goldman, Hancock, and Matar stating that [box] √log n [end-box] -term DNF can be so learned in polynomial time. .Using purely information theoretic techniques, these results extend and improve what is currently known. (For example, a weaker version of (a) was known only under a barely plausible complexity theoretic assumption, (b) was previously unknown, and (c) was known under the assumption P ‡ NP.)