Improving Search Results Quality by Customizing Summary Lengths Michael Kaisser author Marti A Hearst author John B Lowe author 2008-06 text Proceedings of ACL-08: HLT Johanna D Moore editor Simone Teufel editor James Allan editor Sadaoki Furui editor Association for Computational Linguistics Columbus, Ohio conference publication kaisser-etal-2008-improving https://aclanthology.org/P08-1080/ 2008-06 701 709