0386905 - MÚ 2013 RIV DE eng C - Conference Paper (international conference)
Ebenlendr, Tomáš - Sgall, J.
A lower bound on deterministic online algorithms for scheduling on related machines without preemption.
Approximation and Online Algorithms. Heidelberg: Springer, 2012 - (Solis-Oba, R.; Persiano, G.), s. 102-108. Lecture Notes in Computer Science, 7164. ISBN 978-3-642-29115-9.
[9th International Workshop, WAOA 2011. Saarbrücken (DE), 08.09.2011-09.09.2011]
R&D Projects: GA AV ČR IAA100190902; GA MŠMT(CZ) 1M0545
Institutional research plan: CEZ:AV0Z10190503
Keywords : algorithm analysis * problem complexity * computer science
Subject RIV: BA - General Mathematics
http://link.springer.com/chapter/10.1007%2F978-3-642-29116-6_9

We prove a new lower bound of 2.564 on deterministic online algorithms for makespan scheduling on related machines (without preemptions). Previous lower bound was 2.438 by Berman et al. We use an analytical bound on maximal frequency of scheduling jobs instead of the combinatorial bound obtained by computer based search through the graph of possible states of an algorithm in the previous work.
Permanent Link: http://hdl.handle.net/11104/0219394