My professional career started in 1976 with an education as a mathematical-technical assistant (similar to the education at the Universities of Cooperative Education [Berufsakademie]).

Then I worked for several years as a systems programmer, developer, development manager and chief executive officer in software companies developing software systems in the field of document management, security management and data center automation for large data centers utilizing IBM's mainframe operating systems MVS and OS/390 (called z/OS nowadays).

In October 1995 I started studying Computer Science, Mathematics and Economics at the University of Kaiserslautern, where I received the diploma (Master's degree) in January 2001.

From April 2001 until March 2004 I was working at the German Research Center for Artificial Intelligence (DFKI) in the Knowledge Management Department. On May 24, 2004 I had the defense of my Ph.D. thesis. Some pictures can be found here.

Since April 2004 I am scientific advisor for A-Z Technology AG, a company working in the field of knowledge-management, developing and distributing software products in the field of information retrieval for private and commercial customers.

During this time the development of the products A-Z NewsReader and A-Z SiteReader occurred. Some special features of these products, which are developed and marketed as stand-alone solutions and can be integrated into other products, are described here.

My research interests include knowledge management, information retrieval, machine learning, and data mining.

	You can find a comprehensive Curriculum Vitae (in German) here.
	An English version is here.