Fast greedy for linear matroids
Fast greedy for linear matroids
复制标题
快速贪婪线性拟阵
DOI:
10.1137/1.9781611975482.32
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Nguyen, H.
中科院分区:
文献类型:
--
作者:
Nguyen, H.
A fundamental algorithmic result for matroids is that the maximum weight base can be computed using the greedy algorithm. For explicitly represented matroids an important question is the time complexity of computing such a base. It is known that one can compute it in time almost linear in the number of non-zero entries of the linear representation plusrω, whereris the rank of the matroid and ω is the matrix multiplication exponent. In this work, we give an alternative algorithm for the same task.