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Christopher J. Gatti Mobile: (734)-730-3190 Education E-mail: [email protected] Website: chrisgatti.com Rensselaer Polytechnic Institute Troy, New York USA August 2010–August 2014 Ph.D. Industrial and Systems Engineering Dissertation title: Design of Experiments for Reinforcement Learning Adviser: Professor Mark J. Embrechts Dissertation awards: Springer Thesis Prize Del and Ruth Karger Dissertation Prize University of Michigan Ann Arbor, Michigan USA August 2000–May 2007 M.S.E. Biomedical Engineering (May 2007) B.S.E. Mechanical Engineering (May 2005) Employment Cirque du Soleil Montreal, Quebec, Canada Volta: Head coach September 2016–present Paramour by Cirque du Soleil Theatrical New York, NY Acrobatic coach August 2016–September 2016 Temporary/on-call coach for all acrobatic acts New England Center for Circus Arts Brattleboro, VT Volunteer handstand instructor June 2016–August 2016 Cirque du Soleil Montreal, Quebec, Canada/South America Corteo: Circus artist July 2014–December 2015 Tournik artist and horse comedic act. Volunteer yoga instructor for cast and crew. World Class Gymnastics Academy Latham, NY, USA Coach/instructor September 2011–September 2016 Coached boys’ and girls’ Junior Olympic team gymnasts (levels 4–10). Instructed all types of classes, ranging from those for 3-year old children to those for adults. 1 of 7 Laboratory for Optimization and Computation in Orthopaedic Surgery University of Michigan, Ann Arbor, MI, USA Research Computer Specialist May 2007–August 2010 Used computational modeling to analyze various orthopaedic and biomechanical problems. Developed and validated a finite element model of the glenoid labrum to determine the effects of humeral head migration. Used simulated annealing to determine optimal musculoskeletal model parameters to best match experimental measurements and reduce model development time from days to minutes. Developed discrete event simulation of surgery scheduling and procedures to determine the effects of changes in surgery durations. Used support vector machines and genetic algorithms to predict patients that will ultimately require shoulder surgery for rotator cuff repair. Estimated the probability of humeral head migration due to muscle force variability using Monte Carlo simulation. Predicted electromyographic activity of the shoulder muscles from external shoulder moments using an artificial neural network. Great Lakes Cycling and Fitness Ann Arbor, MI, USA Bicycle Mechanics/Salesperson April 2008–August 2010 Performed maintenance on customer bicycles. Assisted customers with bicycle serivce-related needs. Orthopaedic Research Laboratories University of Michigan, Ann Arbor, MI, USA Graduate Student Research Assistant January 2006–April 2007 Studied shoulder biomechanics using computational models and human subjects testing. University of Michigan Athletic Department University of Michigan, Ann Arbor, MI, USA Gymnastics Camp Coach and Counselor Summers: 2001–2004 Coached Junior Olympic gymnasts during summer camps. Supervised gymnasts in dormitories. Graduate Research Appointments Rensselaer Polytechnic Institute, Troy, NY, USA Graph fragment search algorithm development May 2013–August 2014 IARPA-sponsored Knowledge Discovery and Dissemination (KDD) program (Department of Defense) Developed graph fragment search algorithm for large (>1M nodes) attributed graphs Analysis of cortical brain layer development September 2012–April 2013 Developed intuitive and interpretable method to understand gene activity measured by RNA-Seq in the development of the cortical layers of the brain based on a non-negative least squares model 2 of 7 Survival analysis of New York TB patients May 2012–August 2012 Identified differences in trends among the survival of tuberculosis patients in seven different lineages Histology for Interface Stability over Time (HIST) January 2011–April 2012 DARPA-sponsored multi-institution collaboration investigating biological stability of implantable neural electrodes Identified multiple phases of biological reactivity to neural implants using hierarchical clustering and biclustering Developed human knowledge-based approach for neural unit identification for >1TB of electrophysiology recordings Teaching Experience Rensselaer Polytechnic Institute, Troy, NY, USA Teaching Assistant August 2010–May 2011 ENGR 4760: Engineering Economics Spring 2011, Instructor: Professor Jack Reilly ISYE 4691: Human Performance Modeling and Support Fall 2010, Instructor: Professor David Mendonça Journal Publications Linton J. D., Jiang Q., Gatti C. J., Chen X., and Embrechts M. J., 2013. All journals need to correct errors. Nature, 504: 33. (December 5, 2013) Gatti C. J., Hallstrom B. R., and Hughes R. E., 2013. Surgeon variability in total knee arthroplasty component alignment: A Monte Carlo analysis. Computer Methods in Biomechanics and Biomedical Engineering, 17(15): 1738–1750. Linton J. D., Jiang Q., Gatti C. J., and Embrechts M. J., 2013. Erratum to ”Multiattribute decision making for green electrical discharge machining” [Expert Syst. Appl. 38(7) (2011) 8370–8374]. Expert Systems with Applications, 40(4), 1407. Linton J. D., Jiang Q., Gatti C. J., and Embrechts M. J., 2013. Erratum to ”Taguchifuzzy multi output optimization (MOO) in high speed CNC turning of AISI P-20 tool steel” [Exp. Syst. Appl., 38(6) (2011) 6822–6828]. Expert Systems with Applications, 40(4), 1408–1409. Linton J. D., Jiang Q., Gatti C. J., and Embrechts M. J., 2013. Erratum for ”Anawa, E. M. and Olabi, A. G. Using Taguchi method to optimize welding pool of dissimilar laser-welded components” [Optics and Laser Technology 2008; 40(2): 379388]. Optics & Laser Technology, 48, 351–352. Linton J. D., Jiang Q., Gatti C. J., and Embrechts M. J., 2013. Erratum to ”Simultaneous optimization of flame spraying process parameters for high quality molybdenum coatings using taguchi methods” [Surf. Coat. Technol. 79(1–3) (1996) 276–288]. Surface & Coatings Technology, 214, 173–174. Linton J. D., Jiang Q., Gatti C. J., and Embrechts M. J., 2013. Discussion of ”Kapsiz, M., Durat, M., & Ficici, F. (2011). Friction and wear studies between cylinder liner and piston ring pair using Taguchi design method” Advances in Engineering Software, 42(8), 595-603.” Advances in Engineering Software, 64, 71–73. Gatti C. J., Maratt J. D., Palmer M. L., Hughes R. E., Carpenter J. E., 2010. Development and validation of a finite element model of the superior glenoid labrum. Annals of Biomedical Engineering, 38(12): 3766–3776. Gatti C. J. and Hughes R. E., 2009. Optimization of muscle wrapping objects using simulated annealing. Annals of Biomedical Engineering, 37(7): 1342–1347. 3 of 7 Gatti C. J., Scibek J., Svintsitski O., Carpenter J. E., Hughes R. E., 2008. An integer programming model for optimizing shoulder rehabilitation. Annals of Biomedical Engineering, 36(7): 1242–1253. Flieg N. G., Gatti C. J., Doro L. C., Langenderfer J. E., Carpenter J. E., Hughes R. E., 2008. A stochastic analysis of glenoid inclination angle and superior migration of the humeral head. Clinical Biomechanics, 23(5): 554–561. Gatti C. J., Doro L. C., Langenderfer J. E., Mell A. G., Maratt J. D., Carpenter J. E., Hughes R. E., 2008. Evaluation of three methods for determining EMG-muscle force parameter estimates for the shoulder muscles. Clinical Biomechanics, 23(2): 166–174. Gatti C. J., Dickerson C., Chadwick E. K., Mell A. G., Hughes R. E., 2007. Comparison of model-predicted and measured moment arms for the rotator cuff muscles. Clinical Biomechanics, 22(6): 639–644. Books Gatti C. J., 2015. Design of Experiments for Reinforcement Learning (Springer Theses). Springer, ISBN 978-3319121963. Book Chapters Gatti C. J. and Embrechts M. J., 2012. Reinforcement Learning with Neural Networks: Tricks of the trade. In Georgieva P., Mihayolva L, and Jain L. (eds.), Advances in Intelligent Signal Processing and Data Mining, Springer-Verlag, Berlin-Hiedelberg, pp. 275–310. Embrechts M. J., Gatti C. J., Linton J. D., and Roysam B., 2012. Hierarchical Clustering of Large Data Sets. In Georgieva P., Mihayolva L, and Jain L. (eds.), Advances in Intelligent Signal Processing and Data Mining, Springer-Verlag, Berlin-Hiedelberg, pp. 197–233. Conference Publications Hwang E., Gatti C. J., Hughes R. E., Palmer M., and Carpenter J. E., 2015. Finite element modeling of superior labrum anterior posterior (SLAP) tears: The effect of tear size on treatment. International Orthopedic Research Symposium – In Recognition of Dr. Kai-Nan An, Mayo Orthopedic Research Alumni Association, Mayo Clinic, Rochester, MN, August 3. Gatti C. J. and Embrechts M. J., 2014. An application of the temporal difference algorithm to the truck backer-upper problem. Proceedings of the 22nd European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning, Bruges, Belgium, April 23–25. Linton J., Gatti C., Jiang Q., and Embrechts M., 2012. Improving production and design processes through advances in experimental design analysis. INFORMS Annual Meetings, Phoenix, AZ, October 14–17. Gatti C. J., Embrechts M. J., and Linton J. D., 2013. An empirical analysis of reinforcement learning using design of experiments. Proceedings of the 21st European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning, Bruges, Belgium, April 24–26. Embrechts M. J., Gatti C. J., Linton J. D., Gruber T., and Sick B., 2012. Forecasting exchange rates with ensemble neural networks and ensemble K-PLS: A case study for the US Dollar per Indian Rupee. Proceedings of the World Congress on Computational Intelligence: International Joint Conference on Neural Networks (IJCNN), Brisbane, Australia, June 10–15. 4 of 7 Embrechts M. J., Linton J. D., and Gatti C. J., 2012. Hybrid hierarchical clustering: Cluster assessment via cluster validation indices. Proceedings of the 20th European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning, Bruges, Belgium, April 25–27. Gatti C. J., Embrechts M. J., and Linton J. D., 2011. Parameter settings of reinforcement learning for the game of Chung Toi. IEEE International Conference on Systems, Man, and Cybernetics, pp. 3530–3535, Anchorage, Alaska, October 9–12. Gatti C. J., Linton J. D., and Embrechts M. J., 2011. A brief tutorial on reinforcement learning: The game of Chung Toi. Proceedings of the 19th European Symposium on Artificial Neural Networks, Computational Intelligence and Machine Learning, Bruges, Belgium, April 27–29. Runkle A. C., Gatti C. J., Thiele R. A. R., Palmer M. L., Hughes R. E., and Carpenter J. E., 2011. Superior glenoid labrum displacement with humeral head translation. Transactions of the 57th Annual Meeting of the Orthopaedic Research Society, Long Beach, CA, January 13–16. Hughes R. E., Gatti C. J., Yacob A., Kijek T., Carpenter J .E., and Miller B. S., 2011. Predicting whether a rotator cuff tear patient will have surgery using supervised machine learning. Transactions of the 57th Annual Meeting of the Orthopaedic Research Society, Long Beach, CA, January 13–16. Gatti C. J., Maratt J. D., Palmer M. L., Hughes R. E., and Carpenter J. E., 2010. Development and validation of a finite element model of the superior glenoid labrum. American Society of Biomechanics Annual Meeting, Providence, RI, August 18–21. Gatti C. J. and Hughes R. E., 2009. Optimization of muscle wrapping objects using simulated annealing. American Society of Biomechanics Annual Meeting, Penn State University, State College, PA, August 26–29. Gatti C. J., Scibek J., Svintsitski O., Carpenter J. E., and Hughes R. E., 2007. Integer programming models for optimizing shoulder rehabilitation. American Society of Biomechanics Annual Meeting, Stanford University, Stanford, CA, August 22–25. Gatti C. J., Doro L. C., Langenderfer J. E., Mell A. G., Maratt J. D., Carpenter J. E., and Hughes R. E., 2007. Evaluation of three methods for determining EMGmuscle force parameter estimates for the shoulder muscles. American Society of Biomechanics Annual Meeting, Stanford University, Stanford, CA, August 22–25. Dickerson C. R., Gatti C. J., Chadwick E. K. J., Mell A. G., and Hughes R. E., 2006. Comparison of mathematical model muscular moment arms with experimental data: A rotator cuff example. International Shoulder Group Meeting, Chicago, IL, October 9–10. Submitted Journal Publications Certifications Publications In Preparation Gatti C. J., Goldberg M., Magdon-Ismail M., Schwartz J., and Wallace W. Graph search beyond text. Submitted to: ACM Transactions on Knowledge Discovery from Data. Gatti C. J., Brooks J. D., and Nurre S. G. The history of the field of OR/MS: A topic model analysis. Submitted to: Operations Research. National Academy of Sports Medicine–Performance Enhancement Specialist (NASM– PES, 2016) Fundamentals of Engineering (FE) Exam (2005). Gatti C. J. Taking the circus out of scheduling: An application from the big top. 5 of 7 Referee Service American Journal of Sports Medicine (2014–present) IEEE Transactions on Neural Networks and Learning Systems (2014–present) Computer Methods in Biomechanics and Biomedical Engineering (2013–present) Neurocomputing (2013–present) Journal of Biomechanics (2007–present) Membership En Piste: Canadian Circus Arts National Network (2016–present) IEEE Computational Intelligence Society (2011–2014) IEEE Systems, Man, and Cybernetics Society (2011–2014) IEEE (graduate student member) (2010–2014) American Society of Biomechanics (2007–2009) Awards and Recognition Rensselaer Polytechnic Institute Del and Ruth Karger Dissertation Prize (Spring 2015) Springer Thesis Prize (August 2014) Graduate Student Profile (Fall 2013) MATLAB promotional video: Robotic light painting (January 2013) Founders Award of Excellence (2012) School of Engineering Student Profile (Spring 2012) Industrial and Systems Engineering Department Newsletter Feature (Summer 2011) Outstanding Teaching Assistant Award (Spring 2011) Public Speaking Shaker High School, Latham, NY (February 3 & 24, 2016): Background and handstand demonstration Grace Christian School, Bennington, VT (March 2, 2016): Background and handstand demonstration/instruction Service Student volunteer for IEEE International Conference on Systems, Man, and Cybernetics, Anchorage, Alaska (2011) Elected captain of the University of Michigan Men’s Gymnastics team for 3 years as a walk-on gymnast (2003–2005) Member of the University of Michigan Men’s Gymnastics team (2001-2005) Attended 3 day leadership workshop for collegiate athletic team captains (2004) Served as the volunteer representative for the Men’s Gymnastics team to the StudentAthlete Advisory Council and Michigan Peer Advisors Creating Trust organizations (2001-2004) Technical Skills Programming: R, MATLAB, C, MPI, Python Computer Applications: TEX/LATEX/BibTEX, most common productivity packages for Windows and OS X platforms Finite Element Modeling: ABAQUS, HyperMesh, IA–FEMesh Musculoskeletal Modeling Software: AnyBody Modeling Software, Software for Interactive Musculoskeletal Modeling Computational Modeling Experience Statistics Experience General statistics Regression Neural networks Reinforcement learning Monte Carlo simulation Simulated annealing Genetic algorithms Support vector machines Finite element analysis Topic modeling 6 of 7 Biological Expertise ANOVA models Linear mixed models Survival analysis Time series analysis Design of experiments Deterministic/stochastic kriging Musculoskeletal anatomy and function Physiological processes 7 of 7