Summarization Through Submodularity and Dispersion

  title={Summarization Through Submodularity and Dispersion},
  author={Anirban Dasgupta and Ravi Kumar and Sujith Ravi},
We propose a new optimization framework for summarization by generalizing the submodular framework of (Lin and Bilmes, 2011). In our framework the summarization desideratum is expressed as a sum of a submodular function and a nonsubmodular function, which we call dispersion; the latter uses inter-sentence dissimilarities in different ways in order to ensure non-redundancy of the summary. We consider three natural dispersion functions and show that a greedy algorithm can obtain an approximately… CONTINUE READING
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