Collaborative Summarization: When Collaborative Filtering Meets Document Summarization Yang Qu author Qunxiu Chen author 2009-12 text Proceedings of the 23rd Pacific Asia Conference on Language, Information and Computation, Volume 2 Olivia Kwong editor City University of Hong Kong Hong Kong conference publication qu-chen-2009-collaborative https://aclanthology.org/Y09-2005/ 2009-12 474 483