Analyzing graph structure via linear measurements
Proceedings of the twenty-third annual ACM-SIAM symposium on Discrete Algorithms
Graph sketches: sparsification, spanners, and subgraphs
PODS '12 Proceedings of the 31st symposium on Principles of Database Systems
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We present an approximation algorithm to find a weighted matching of a graph in the one-pass semi-streaming model. The semi-streaming model forbids random access to the input graph and restricts the memory to ${\mathcal{O}}(n\cdot\operatorname{polylog}n)$ bits where n denotes the number of the vertices of the input graph. We obtain an approximation ratio of 5.58 while the previously best algorithm achieves a ratio of 5.82.