of utilities. Since 1990 Michael Richter was concerned with combining basic research and useful applications. As an example, his group founded tecinno company (now empolis) which is a very successful company in “selling CBR and knowledge management“. Some major publications Michael M. Richter has written numerous publications in Mathematics, General Computer Science, Artificial Intelligence, Medical Informatics and Operations Research. He has written and/or edited 25 books. Some influential publications are: Michael M. Richter: Logikkalküle. Teubner Studienbücher Informatik (Leitfäden der angewandten Mathematik und Mechanik). Stuttgart 1978, p. 232 Michael M. Richter: Ideale Punkte, Monaden und Nichtstandardmethoden. Vieweg-Verlag, Wiesbaden 1982, p. 269 B. Benninghofen, Michael M. Richter: A general theory of superinfinitesimals. Fundamenta Mathematicae 128 (1987), pp. 199–215. The Knuth-Bendix Completion Procedure, the Growth Function and Polycyclic Groups. In: Proc. Logic Colloquium ’86, ed. F. Drake, J. Truss, North-Holland Publ. Co. pp. 261–275. B. Benninghofen, S. Kemmerich, Michael M. Richter: Systems of Reductions. SLN in Computer Science 277 (1987); 265 + VII p. Michael M. Richter: Prinzipen der Künstlichen Intelligenz. Teubner Studienbücher Informatik, Stuttgart 1989, p. 355 Michael M. Richter: Prinzipen der Künstlichen Intelligenz (2nd Edition). Teubner Studienbücher Informatik, Stuttgart 1991, p. 355 Michael M. Richter, S. Wess: Similarity, Uncertainty and Case-Based Reasoning in PATDEX. In: R. S. Boyer (Ed.), Automated Reasoning, Essays in Honor of Woody Bledsoe, Kluwer Academic Publishers, 1991. T. Pfeifer, Michael M. Richter: Diagnose von Technischen Systemen. Deutscher Universitätsverlag 1993 Recent Developments in Case-Based Reasoning: Improvements of Similarity Measures. In: New Approaches in Classification and Data Analysis, ed. E. Diday, Y. Lechevallier, M. Schader, P. Bertrand, B. Burtschy, Springer Verlag 1994, S. 594-601. R. Kühn, R. Menzel, W. Menzel, U. Ratsch, Michael M. Richter, I. O. Stamatescu: Adaptivity and Learning: An Interdisciplinary Debate. Springer Verlag, 2003 Michael M. Richter, Agnar Aamodt: Case-based reasoning foundations. Knowledge Engineering Review, 20:3 Cambridge University Press, p. 203-207 (2006). Foundations of Similarity and Utility. Proc. Flairs 07, AAAI Press Similarity. In: Case-Based Reasoning for Signals and Imaging, ed. Petra Perner, Springer Verlag 2007, pp. 25–90. Michael M. Richter, Rosina Weber: Case-Based Reasoning. A Textbook. Springer Verlag 2013, p. 546 References External links https://web.archive.org/web/20050316020146/http://wwwagse.informatik.uni-kl.de/research/sfb501/a2/pubs.html https://web.archive.org/web/20160303235536/http://www.dfki.de/web/research/km/publications/base_view?pubid=2115 DOI.org 1938 births 2020 deaths 20th-century German mathematicians German computer scientists 21st-century German mathematicians Academic staff of the Technical University of Kaiserslautern Academic staff of RWTH Aachen University University of Freiburg alumni University of Münster alumni University of Texas at Austin faculty University of Tübingen alumni