@techreport{,
TITLE = {Improved algorithms for all-pairs approximate shortest paths in weighted graphs},
AUTHOR = {Baswana, Surender and Telikepalli, Kavitha},
LANGUAGE = {eng},
URL = {http://domino.mpi-inf.mpg.de/internet/reports.nsf/NumberView/2005-1-003},
NUMBER = {MPI-I-2005-1-003},
INSTITUTION = {Max-Planck-Institut f{\"u}r Informatik},
ADDRESS = {Saarbr{\"u}cken},
YEAR = {2005},
DATE = {2005},
ABSTRACT = {The all-pairs approximate shortest-paths problem is an interesting<br>variant of the classical all-pairs shortest-paths problem in graphs.<br>The problem aims at building a data-structure for a given graph<br>with the following two features. Firstly, for any two vertices,<br>it should report an {\emph{approximate}} shortest path between them,<br>that is, a path which is longer than the shortest path<br>by some {\emph{small}} factor. Secondly, the data-structure should require<br>less preprocessing time (strictly sub-cubic) and occupy optimal space<br>(sub-quadratic), at the cost of this approximation.<br><br>In this paper, we present algorithms for computing all-pairs approximate<br>shortest paths in a weighted undirected graph. These algorithms significantly<br>improve the existing results for this problem.},
TYPE = {Research Report / Max-Planck-Institut für Informatik},
}