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Optimal Spot-checking for Computation Time Minimization in Volunteer Computing

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Abstract

This paper proposes an optimization technique for spot-checking to minimize the computation time in volunteer computing (VC) systems with non-reliable participants. Credibility-based voting with spot-checking is a promising approach to the high-performance and reliable VC systems. In this approach, spot-check rate has a significant impact on the performance, which must be set before the computation. Therefore, the estimation of the optimal spot-check rate is the major concern to minimize the computation time. The key idea for the estimation is to represent the mathematical expectation of the computation time as a function of spot-check rate. Extensive simulation has shown that the proposed technique always obtains an approximate estimate of the optimal spot-check rate and minimizes the computation time with an uncertainty of 1%.

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Authors and Affiliations

  1. Graduate School of Information Sciences, Tohoku University, Aramaki-aza Aoba 6-3-09, Aoba-ku Sendai, 980-8579, Japan

    Kan Watanabe, Masaru Fukushi & Susumu Horiguchi

Authors
  1. Kan Watanabe
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  2. Masaru Fukushi
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  3. Susumu Horiguchi
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Correspondence to Kan Watanabe.

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Watanabe, K., Fukushi, M. & Horiguchi, S. Optimal Spot-checking for Computation Time Minimization in Volunteer Computing. J Grid Computing 7, 575 (2009). https://doi.org/10.1007/s10723-009-9125-4

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  • DOI: https://doi.org/10.1007/s10723-009-9125-4

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