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earned his degree in Electrical Engineering at the Technical College Schmalkalden, Germany in 1996. During his master thesis, he worked at CTI analyzing the EEG data collected in a driving simulator study assessing the impact of caffeine gum on alertness and developed a program that detects microsleeps in the EEG data. This system is based on artificial neural networks (ANNs) and fuzzy logic.
Rainer officially became a member of CTI in April 1997. A large portion of Rainer’s expertise involves the Circadian Alertness Simulator (CAS). Over the past 6 years he has extended the program’s functionality and ease of use, most recently working to develop a version of CAS that incorporates the effects of light exposure and phase shifting into the prediction of alertness. The algorithm development included the programming of optimization routines in order to minimize the difference between CAS predicted alertness and measured alertness. These findings were presented at the 1998 Sleep conference in Madrid, Spain
Mr. Guttkuhn was also the lead developer for Circadian's train crew simulation software, the origins of which began in 1997. Rainer programmed various tools to assess historical train data and the simulation tool that applies a crew schedule to existing train data to predict it's operational impact and efficiency. Stemming from this work, CTI and Canadian National Railway co-developed the Freight Rail Crew Optimization Software (FRCOS) program to develop and assess train crew schedules as well as track and analyze operational and cost parameters associated with both the movement of trains and assignment of crews. Rainer will present both the current crew assignment simulation system and the most recent results from the CAS development at the 2003 Winter Simulation conference in New Orleans. | 