Using Gene Expression Programming to Construct Sentence Ranking Functions for Text Summarization Zhuli Xie author Xin Li author Barbara Di Eugenio author Weimin Xiao author Thomas M Tirpak author Peter C Nelson author 2004-aug 23–aug 27 text COLING 2004: Proceedings of the 20th International Conference on Computational Linguistics COLING Geneva, Switzerland conference publication xie-etal-2004-using https://aclanthology.org/C04-1202/ 2004-aug 23–aug 27 1381 1384