Matroids Hitting Sets and Unsupervised Dependency Grammar Induction
نویسندگان
چکیده
This paper formulates a novel problem on graphs: find the minimal subset of edges in a fully connected graph, such that the resulting graph contains all spanning trees for a set of specified subgraphs. This formulation is motivated by an unsupervised grammar induction problem from computational linguistics. We present a reduction to some known problems and algorithms from graph theory, provide computational complexity results, and describe an approximation algorithm.
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عنوان ژورنال:
- CoRR
دوره abs/1705.08992 شماره
صفحات -
تاریخ انتشار 2017