TITLE

On the Complexity of Some classes of Location Problems

AUTHOR(S)
Tamir, Arie
PUB. DATE
November 1992
SOURCE
Transportation Science;Nov92, Vol. 26 Issue 4, p352
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The author presents complexity bound improvements for four location models: the planar 1-center rectilinear roundtrip location model, the 1-center rectilinear asymmetric distance location model, the equity maximizing facility location model and the maximal direct covering tree problem. To summarize, the author has shown that the weighting method used in the article to approximate the noninfenor set associated with the maximal direct covering tree problem can be implemented in polynomial time. For comparison purposes the author notes that the constraint method approach, gives rise to an NP-hard problem even for the case when the underlying spanning tree network is a star.
ACCESSION #
4454284

 

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