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Ranking with Recursive Neural Networks and Its Application to Multi-Document Summarization

	author = {Ziqiang Cao and Furu Wei and Li Dong and Sujian Li and Ming Zhou},
	title = {Ranking with Recursive Neural Networks and Its Application to Multi-Document Summarization},
	conference = {AAAI Conference on Artificial Intelligence},
	year = {2015},
	keywords = {},
	abstract = {We develop a Ranking framework upon Recursive Neural Networks (R2N2) to rank sentences for multi-document summarization. It formulates the sentence ranking task as a hierarchical regression process, which simultaneously measures the salience of a sentence and its constituents (e.g., phrases) in the parsing tree. This enables us to draw on word-level to sentence-level supervisions derived from reference summaries.In addition, recursive neural networks are used to automatically learn ranking features over the tree, with hand-crafted feature vectors of words as inputs. Hierarchical regressions are then conducted with learned features concatenating raw features.Ranking scores of sentences and words are utilized to effectively select informative and non-redundant sentences to generate summaries.Experiments on the DUC 2001, 2002 and 2004 multi-document summarization datasets show that R2N2 outperforms state-of-the-art extractive summarization approaches.},

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