Sentence ordering with manifold-based classification in multi-document summarization Paul D Ji author Stephen Pulman author 2006-07 text Proceedings of the 2006 Conference on Empirical Methods in Natural Language Processing Dan Jurafsky editor Eric Gaussier editor Association for Computational Linguistics Sydney, Australia conference publication ji-pulman-2006-sentence https://aclanthology.org/W06-1662/ 2006-07 526 533