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New PDF release: Automata, Languages, and Programming: 40th International

By Amir Abboud, Kevin Lewi (auth.), Fedor V. Fomin, Rūsiņš Freivalds, Marta Kwiatkowska, David Peleg (eds.)

ISBN-10: 3642392059

ISBN-13: 9783642392054

ISBN-10: 3642392067

ISBN-13: 9783642392061

This two-volume set of LNCS 7965 and LNCS 7966 constitutes the refereed court cases of the fortieth foreign Colloquium on Automata, Languages and Programming, ICALP 2013, held in Riga, Latvia, in July 2013. the whole of 124 revised complete papers offered have been conscientiously reviewed and chosen from 422 submissions. they're prepared in 3 tracks focussing on algorithms, complexity and video games; good judgment, semantics, automata and conception of programming; and foundations of networked computation.

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Read or Download Automata, Languages, and Programming: 40th International Colloquium, ICALP 2013, Riga, Latvia, July 8-12, 2013, Proceedings, Part I PDF

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Extra resources for Automata, Languages, and Programming: 40th International Colloquium, ICALP 2013, Riga, Latvia, July 8-12, 2013, Proceedings, Part I

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3608, pp. 409–421. Springer, Heidelberg (2005) 4. : Universal hashing and k-wise independent random variables via integer arithmetic without primes. , Reischuk, R. ) STACS 1996. LNCS, vol. 1046, pp. 569–580. Springer, Heidelberg (1996) 5. : Fixed-parameter tractability and completeness ii: On completeness for w[1] (1995) 6. : On the complexity of fixed parameter clique and dominating set. Theor. Comput. Sci. 326(1-3), 57–67 (2004) 7. : Lower bounds for linear satisfiability problems. L. ) SODA, pp.

For m machines we show a lower bound of Ω(m) on the competitive ratio if speed augmentation is not permitted. Our algorithm does not assign jobs to machines as soon as they arrive. To justify this “drawback” we show a lower bound of Ω(log m) on the competitive ratio of immediate dispatch algorithms. In both these lower bound constructions we use jobs whose processing times are in {1, ∞}, and hence they apply to the more restrictive subset parallel setting. 3. For the objective of minimizing maximum weighted flow time on unrelated machines we establish a lower bound of Ω(log m)-on the competitive ratio of any online algorithm which is permitted to use s = O(1) speed machines.

Proof. We prove that this property holds whenever we add a new maximal interval to N . Suppose this property holds at some point in time, and we add a job j to S. Let j, k, l, k , l , i be as in the description of S. Since k ≤ k , and j is valid for i, N already contains the intervals Ii (k, l) for all i ≤ i. Hence, the intervals Ii (k , l ), i ≤ i, cannot be maximal. Suppose an interval Ii (k , l ) is maximal, where i > i, and j is valid for i (so this interval gets added to N ). Now, our algorithm would have considered scheduling j on i before going to i — so it must be the case that all but pj si slots in Ii (k , l ) are busy processing jobs of class at least k .

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Automata, Languages, and Programming: 40th International Colloquium, ICALP 2013, Riga, Latvia, July 8-12, 2013, Proceedings, Part I by Amir Abboud, Kevin Lewi (auth.), Fedor V. Fomin, Rūsiņš Freivalds, Marta Kwiatkowska, David Peleg (eds.)


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