NDLI: Generalized Spot-Checking for Sabotage-Tolerance in Volunteer Computing Systems

Content Provider	IEEE Xplore Digital Library
Author	Watanabe, K. Fukushi, M.
Copyright Year	2010
Abstract	While volunteer computing (VC) systems reach the most powerful computing platforms, they still have the problem of guaranteeing computational correctness, due to the inherent unreliability of volunteer participants. Spot-checking technique, which checks each participant by allocating spotter jobs, is a promising approach to the validation of computation results. The current spot-checking technique and associated sabotage-tolerance methods are based on the implicit assumption that participants never detect the allocation of spotter jobs, however generating such spotter jobs is still an open problem. Hence, in the real VC environment where the implicit assumption does not always hold, spot-checking-based sabotage-tolerance methods (such as well-known credibility-based voting) become almost impossible to guarantee the computational correctness. In this paper, we generalize the spot-checking technique by introducing the idea of imperfect checking. Using our new technique, it becomes possible to estimate the correct credibility for participant nodes even if they may detect spotter jobs. Moreover, by the idea of imperfect checking, we propose a new credibility-based voting which does not need to allocate spotter jobs. Simulation results show that the proposed method reduces the computation time compared to the original credibility-based voting, while guaranteeing the same level of computational correctness.
Starting Page	655
Ending Page	660
File Size	208680
Page Count	6
File Format	PDF
ISBN	9781424469871
e-ISBN	9781424469888
DOI	10.1109/CCGRID.2010.97
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-17
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Voting Virtual colonoscopy Grid computing Computational modeling Concurrent computing Internet Frequency estimation High performance computing Cloud computing Error analysis volunteer computing spot-checking sabotage-tolerance credibility-based mechanisms
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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