Learning and Evaluation of Dialogue Strategies for New Applications: Empirical Methods for Optimization from Small Data Sets Verena Rieser author Oliver Lemon author 2011-03 text journal article Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal rieser-lemon-2011-learning 10.1162/coli_a_00038 https://aclanthology.org/J11-1006/ 2011-03 37 1 153 196