TY - CHAP A1 - Bax, I. A1 - Heidemann, G. A1 - Ritter, H. T1 - Using Non-negative Sparse Profiles in a Hierarchical Feature Extraction Network T2 - Proc. 9th IAPR Conf. Machine Vision Applications Y1 - 2005 SP - 464 EP - 467 CY - Tsukuba Science City, Japan ER - TY - CHAP A1 - Heidemann, G. A1 - Bax, I. A1 - Bekel, H. A1 - Bauckhage, C. A1 - Wachsmuth, S. A1 - Fink, G. A1 - Pinz, A. A1 - Ritter, H. A1 - Sagerer, G. T1 - Multimodal interaction in an augmented reality scenario T2 - Proc. Int'l Conf. Multimodal Interfaces Y1 - 2004 SP - 53 EP - 60 CY - New York, NY, USA ER - TY - JOUR A1 - Heidemann, G. A1 - Bekel, H. A1 - Bax, I. A1 - Ritter, H. T1 - Interactive Online Learning JF - Pattern Recognition and Image Analysis Y1 - 2005 VL - 15 (1) SP - 55 EP - 58 ER - TY - CHAP A1 - Heidemann, G. A1 - Bekel, H. A1 - Bax, I. A1 - Ritter, H. T1 - Interactive Online Learning T2 - Proc. Pattern Recognition and Image Analysis Y1 - 2004 SP - 44 EP - 48 CY - St. Petersburg, Russia ER -