Download e-book for kindle: Algorithms — ESA '97: 5th Annual European Symposium Graz, by A. K. Amoura, E. Bampis, C. Kenyon, Y. Manoussakis (auth.),

By A. K. Amoura, E. Bampis, C. Kenyon, Y. Manoussakis (auth.), Rainer Burkard, Gerhard Woeginger (eds.)

ISBN-10: 3540633979

ISBN-13: 9783540633976

This publication constitutes the refereed complaints of the fifth Annual overseas eu Symposium on Algorithms, ESA'97, held in Graz, Austria, September 1997.
The 38 revised complete papers awarded have been chosen from 112 submitted papers. The papers tackle a huge spectrum of theoretical and applicational facets in algorithms conception and layout. one of the themes lined are approximation algorithms, graph and community algorithms, combinatorial optimization, computational biology, computational arithmetic, information compression, disbursed computing, evolutionary algorithms, neural computing, on-line algorithms, parallel computing, development matching, and others.

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Additional info for Algorithms — ESA '97: 5th Annual European Symposium Graz, Austria, September 15–17, 1997 Proceedings

Example text

Introduction end in a deadlock, their verification also includes a test of deadlock freedom. As typical examples of parallel programs with shared variables and synchronization, we consider solutions to the producer/consumer problem and the mutual exclusion problem, which we prove to be correct. In Chapter 7 we return to sequential programs but this time to nondeterministic ones in the form of guarded commands due to Dijkstra [1975,1976]. These programs can be seen as a stepping stone towards distributed programs considered in Chapter 8.

Thus the effect of a[u := dJ is a selected update of the array variable a at the current values of the argument tuple tI, ... , tn. 1, ~[u := dJ = ~ and fail[u := dJ = fail. 6 Example Let x be an integer variable and a a proper state. 4. and for any array a of type TI x ... x Tn ~ Formal Proof Systems T and di E DTi 33 for i E {1, ... , n}, (ii) Let a be an array of type integer ~ integer. Suppose that a(x) = 3. Then for all simple variables y a[a[x + 1] := 2](y) = a(y), a[a[x + 1] := 2](a)(4) = 2, for all integers k i= 4 a[a[x + 1] := 2](a)(k) = a(a)(k), and for any array b oftype TI x ...

K. R. , Verification of Sequential and Concurrent Programs © Springer Science+Business Media New York 1997 48 3. 4, we introduce a convenient proof presentation, called a proof outline, that allows us to present correctness proofs by giving a program interleaved with assertions at appropriate places. This form of proof presentation is especially important in Chapters 5 and 6 when studying parallel programs. 5 we study completeness of the introduced proof systems, that is, the problem whether all true correctness formulas can be proved in the corresponding proof systems.

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Algorithms — ESA '97: 5th Annual European Symposium Graz, Austria, September 15–17, 1997 Proceedings by A. K. Amoura, E. Bampis, C. Kenyon, Y. Manoussakis (auth.), Rainer Burkard, Gerhard Woeginger (eds.)

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