Výzkumné zprávy

Výzkumné zprávy Nalezeno 8,655 záznamů.  začátekpředchozí7443 - 7452dalšíkonec  přejít na záznam: Hledání trvalo 0.01 vteřin. 
Multiprocessor Randomized On-line Scheduling
Tichý, Tomáš
This paper studies randomized on-line non-preemptive scheduling in multiprocessor systems. In this problem each task is specified by its processing time andscheduled on any of $m$ identical processors. The objective is to minimize theexpected mekespan. We prove lemmas and theorems describing $sigma_m$-competitive randomized algorithms on $m$ processors. The main result is an........
Online competitive algorithms for maximizing weighzed throughput of unit jobs. ITI Series 2003-172
Bartal, Y. ; Chin, F. Y. L. ; Chrobak, M. ; Fung, S. P. Y. ; Jawor, W. ; Lavi, R. ; Sgall, Jiří ; Tichý, Tomáš
We study an online buffer management problem for networks supporting Quality-of-Service (QoS) applications, equivalently as an online scheduling problem forunit-length jobs, where each job is specified by its release time, deadline, and a nonnegative weight (QoS value). The goal is to maximize the emph{weighted throughput}, that is the total weight of scheduled jobs.
Optimal and online preemptive scheduling on uniformly related machines. ITI Series 2003-171
Ebenlendr, T. ; Sgall, Jiří
We consider the problem of preemptive scheduling on uniformly related machines.We present a semi-online algorithm which, if the optimal makespan is given in advance, produces an optimal schedule. Using the standard doubling technique, this yields a 4 competitive deterministic and 2.71 competitive randomized online algorithms. In addition, it matches the performance of the previously......
Coloring graphs from lists with bounded size of their union. KAM-DIMATIA. Series 2003-641 and ITI Series 2003-156
Král, D. ; Sgall, Jiří
We construct a graph G which is k-choosable from any lists of colors whoseunion has size at most u but the same does not hold with lists whose union has size u+1.
It is tough to be a plumber
Král, D. ; Majerech, V. ; Sgall, Jiří ; Tichý, Tomáš ; Woeginger, G.
In the Linux computer game {tt KPlumber/}, the objective is to rotate tiles in a ~ raster of squares so as to complete a~ system of pipes. We give a~complexity classification for the original game and various special cases of it that arise from restting the set of six possible tiles.

Výzkumné zprávy : Nalezeno 8,655 záznamů.   začátekpředchozí7443 - 7452dalšíkonec  přejít na záznam:
Chcete být upozorněni, pokud se objeví nové záznamy odpovídající tomuto dotazu?
Přihlásit se k odběru RSS.