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» Rounding to an Integral Program
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STOC
2010
ACM
261views Algorithms» more  STOC 2010»
14 years 3 months ago
An Improved LP-based Approximation for Steiner Tree
The Steiner tree problem is one of the most fundamental ÆÈ-hard problems: given a weighted undirected graph and a subset of terminal nodes, find a minimum weight tree spanning ...
Jaroslaw Byrka, Fabrizio Grandoni, Thomas Rothvoss...
ECCC
2006
88views more  ECCC 2006»
13 years 10 months ago
Hardness of Directed Routing with Congestion
Given a graph G and a collection of source-sink pairs in G, what is the least integer c such that each source can be connected by a path to its sink, with at most c paths going th...
Julia Chuzhoy, Sanjeev Khanna
ICDE
2012
IEEE
216views Database» more  ICDE 2012»
12 years 18 days ago
Load Balancing in MapReduce Based on Scalable Cardinality Estimates
—MapReduce has emerged as a popular tool for distributed and scalable processing of massive data sets and is increasingly being used in e-science applications. Unfortunately, the...
Benjamin Gufler, Nikolaus Augsten, Angelika Reiser...
ITICSE
2005
ACM
14 years 3 months ago
Iconic programming for flowcharts, java, turing, etc
One of the largest barriers to learning programming is the precise and complex syntax required to write programs. This barrier is a key impediment to the integration of programmin...
Stephen Chen, Stephen Morris
POPL
2003
ACM
14 years 10 months ago
Static prediction of heap space usage for first-order functional programs
We show how to efficiently obtain linear a priori bounds on the heap space consumption of first-order functional programs. The analysis takes space reuse by explicit deallocation ...
Martin Hofmann, Steffen Jost