Hybrid Text Summarization: Combining External Relevance Measures with Structural Analysis Gian Lorenzo Thione author Martin van den Berg author Livia Polanyi author Chris Culy author 2004-07 text Text Summarization Branches Out Association for Computational Linguistics Barcelona, Spain conference publication thione-etal-2004-hybrid https://aclanthology.org/W04-1009/ 2004-07 51 55