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Thread algebra and risk assessment services

Published online by Cambridge University Press:  18 December 2009

Costas Dimitracopoulos
Affiliation:
University of Athens, Greece
Ludomir Newelski
Affiliation:
Uniwersytet Wroclawski, Poland
Dag Normann
Affiliation:
Universitetet i Oslo
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Summary

Abstract. Threads as contained in a thread algebra emerge from the behavioral abstraction from programs in an appropriate program algebra. Threads may make use of services such as stacks, and a thread using a single stack is called a pushdown thread. Equivalence of pushdown threads is decidable. Using this decidability result, an alternative to Cohen's impossibility result on virus detection is discussed and some results on risk assessment services are proved.

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Publisher: Cambridge University Press
Print publication year: 2007

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