Titlebook: Algorithms and Data Structures; 15th International S Faith Ellen,Antonina Kolokolova,Jörg-Rüdiger Sack Conference proceedings 2017 Springer

DNR215

Replica Placement on Bounded Treewidth Graphs,ount of request a replica can serve. The problem falls under the general framework of capacitated set cover. It admits an .-approximation and it is NP-hard to approximate within a factor of .. We study the problem in terms of the treewidth . of the graph and present an .(.)-approximation algorithm.

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,The I/O Complexity of Strassen’s Matrix Multiplication with Recomputation,orial properties of the Strassen computational directed acyclic graph (CDAG). Applications to parallel computation are also developed. The result generalizes a similar bound previously obtained under the constraint of no-recomputation, that is, that intermediate results cannot be computed more than once.

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