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24

Voted
ICALP

2007

Springer

2007

Springer

We revisit the problem of memory checking considered by Blum et al. [3]. In this model, a checker monitors the behavior of a data structure residing in unreliable memory given an arbitrary sequence of user deﬁned operations. The checker is permitted a small amount of separate reliable memory and must fail a data structure if it is not behaving as speciﬁed and pass it otherwise. How much additional reliable memory is required by the checker? First, we present a checker for an implementation of a priority queue. The checker uses O( √ n log n) space where n is the number of operations performed. We then present a spotchecker using only O( −1 log δ−1 log n) space, that, with probability at least 1−δ, will fail the priority queue if it is -far (deﬁned appropriately) from operating like a priority queue and pass the priority queue if it operates correctly. Finally, we then prove a range of lower bounds that complement our checkers.

Added |
08 Jun 2010 |

Updated |
08 Jun 2010 |

Type |
Conference |

Year |
2007 |

Where |
ICALP |

Authors |
Matthew Chu, Sampath Kannan, Andrew McGregor |

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