### Abstract

We present a new approximation algorithm for the stochastic submodular set cover (SSSC) problem called adaptive dual greedy. We use this algorithm to obtain a 3-approximation algorithm solving the stochastic Boolean function evaluation (SBFE) problem for linear threshold formulas (LTFs). We also obtain a 3- approximation algorithm for the closely related stochastic min-knapsack problem and a 2-approximation for a variant of that problem. We prove a new approximation bound for a previous algorithm for the SSSC problem, the adaptive greedy algorithm of Golovin and Krause. We also consider an approach to approximating SBFE problems using the adaptive greedy algorithm,which we call the Q-value approach. This approach easily yields a new result for evaluation of CDNF (conjunctive / disjunctive normal form) formulas, and we apply variants of it to simultaneous evaluation problems and a ranking problem. However, we show that the Q-value approach provably cannot be used to obtain a sublinear approximation factor for the SBFE problem for LTFs or read-once disjunctive normal form formulas.

Original language | English (US) |
---|---|

Article number | 42 |

Journal | ACM Transactions on Algorithms |

Volume | 12 |

Issue number | 3 |

DOIs | |

State | Published - Apr 1 2016 |

### Fingerprint

### Keywords

- Boolean function evaluation
- Sequential testing

### ASJC Scopus subject areas

- Mathematics (miscellaneous)

### Cite this

*ACM Transactions on Algorithms*,

*12*(3), [42]. https://doi.org/10.1145/2876506

**Approximation algorithms for stochastic submodular set cover with applications to boolean function evaluation and min-knapsack.** / Deshpande, Amol; Hellerstein, Lisa; Kletenik, Devorah.

Research output: Contribution to journal › Article

*ACM Transactions on Algorithms*, vol. 12, no. 3, 42. https://doi.org/10.1145/2876506

}

TY - JOUR

T1 - Approximation algorithms for stochastic submodular set cover with applications to boolean function evaluation and min-knapsack

AU - Deshpande, Amol

AU - Hellerstein, Lisa

AU - Kletenik, Devorah

PY - 2016/4/1

Y1 - 2016/4/1

N2 - We present a new approximation algorithm for the stochastic submodular set cover (SSSC) problem called adaptive dual greedy. We use this algorithm to obtain a 3-approximation algorithm solving the stochastic Boolean function evaluation (SBFE) problem for linear threshold formulas (LTFs). We also obtain a 3- approximation algorithm for the closely related stochastic min-knapsack problem and a 2-approximation for a variant of that problem. We prove a new approximation bound for a previous algorithm for the SSSC problem, the adaptive greedy algorithm of Golovin and Krause. We also consider an approach to approximating SBFE problems using the adaptive greedy algorithm,which we call the Q-value approach. This approach easily yields a new result for evaluation of CDNF (conjunctive / disjunctive normal form) formulas, and we apply variants of it to simultaneous evaluation problems and a ranking problem. However, we show that the Q-value approach provably cannot be used to obtain a sublinear approximation factor for the SBFE problem for LTFs or read-once disjunctive normal form formulas.

AB - We present a new approximation algorithm for the stochastic submodular set cover (SSSC) problem called adaptive dual greedy. We use this algorithm to obtain a 3-approximation algorithm solving the stochastic Boolean function evaluation (SBFE) problem for linear threshold formulas (LTFs). We also obtain a 3- approximation algorithm for the closely related stochastic min-knapsack problem and a 2-approximation for a variant of that problem. We prove a new approximation bound for a previous algorithm for the SSSC problem, the adaptive greedy algorithm of Golovin and Krause. We also consider an approach to approximating SBFE problems using the adaptive greedy algorithm,which we call the Q-value approach. This approach easily yields a new result for evaluation of CDNF (conjunctive / disjunctive normal form) formulas, and we apply variants of it to simultaneous evaluation problems and a ranking problem. However, we show that the Q-value approach provably cannot be used to obtain a sublinear approximation factor for the SBFE problem for LTFs or read-once disjunctive normal form formulas.

KW - Boolean function evaluation

KW - Sequential testing

UR - http://www.scopus.com/inward/record.url?scp=84968895040&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84968895040&partnerID=8YFLogxK

U2 - 10.1145/2876506

DO - 10.1145/2876506

M3 - Article

AN - SCOPUS:84968895040

VL - 12

JO - ACM Transactions on Algorithms

JF - ACM Transactions on Algorithms

SN - 1549-6325

IS - 3

M1 - 42

ER -