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SIAM J. Comput. 22, pp. 46-56 (11 pages)

Tight Worst-Case Performance Bounds for Next-$k$-Fit Bin Packing

Weizhen Mao

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The bin packing problem is to pack a list of reals in $( {0,1} ]$ into unit-capacity bins using the minimum number of bins. Let $R[A]$ be the limiting worst value for the ratio ${{A(L)} / {L^ * }}$ as $L^ * $ goes to $\infty $, where $A(L)$ denotes the number of bins used in the approximation algorithm $A$, and $L^ * $ denotes the minimum number of bins needed to pack $L$. Obviously, $R[A]$ reflects the worst-case behavior of $A$. For Next-$k$-Fit($NkF$ for short, $k \geqslant 2$), which is a linear time approximation algorithm for bin packing, it was known that $1.7 + \frac{3}{{10(k - 1)}} \leqslant R[NkF] \leqslant 2$. In this paper, a tight bound $R[NkF] = 1.7 + \frac{3}{{10(k - 1)}}$ is proved.

© 1993 Society for Industrial and Applied Mathematics

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PUBLICATION DATA

ISSN

0097-5397 (print)  
1095-7111 (online)

ARTICLE DATA

History
Received May 06, 1989
Accepted October 01, 1991

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