By Alok Aggarwal, C. Pandu Rangan

This ebook constitutes the refereed court cases of the tenth foreign Symposium on Algorithms and Computation, ISAAC'99, held in Chennai, India, in December 1999.
The forty revised complete papers offered including 4 invited contributions have been conscientiously reviewed and chosen from seventy one submissions. one of the themes lined are facts buildings, parallel and dispensed computing, approximation algorithms, computational intelligence, on-line algorithms, complexity concept, graph algorithms, computational geometry, and algorithms in perform.

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Additional resources for Algorithms and Computation: 10th International Symposium, ISAAC’99 Chennai, India, December 16–18, 1999 Proceedings

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Sanders idle PEs. This adaptive approach has been used successfully for a variety of purposes such as parallel functional [1] and logic programming [16] or game tree search [12]. Randomized partner selection goes at least back to [13]. The partner selection strategy turns out to be crucial. The apparently economic option to poll neighbors in the interconnection network can be extremely inefficient since it leads to a buildup of “clusters” of busy PEs shielding large subproblems from being split [26].

Due to Theorem 3 and linearity of expectation, this version of EXPIRY DATE STACK (R) is also r-competitive. Moreover it uses a fixed number of independent random integers per time unit, regardless of the workload function f . Most pleasantly, r is not only the expected competitive ratio. We can give a stronger guarantee if the workload is high: Proposition 2. ) at most r times the optimum. Proof. For simplicity consider the stubborn version of the algorithm, as in Theorem 3. So every thread is assigned to a fixed down-up pair of f , as soon as it becomes idle.

Theorem 3) we have no such guarantee, so we would need an additional data structure to quickly find the next expiry date in the stack. 36 P. Damaschke References 1. A. Borodin, R. El-Yaniv: Online Computation and Competitive Analysis, Cambridge Univ. Press 1998 2. T. Damaschke: private communication on the business component software project DamBuKo 3. R. A. D. Scott: TCP dynamic acknowledgment delay: theory and practice, 30th STOC’98, 389-398 4. A. S. Gopal, S. Kutten, Y. Mansour, M. Yung: Efficient on-line call control algorithms, J.

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