Dr Artyom Nahapetyan

Dr Artyom Nahapetyan

E d u c a t i o n :

Ph.D.

Department of Industrial and Systems Engineering, University of Florida,

Gainesville, USA

Advisor: Siriphong Lawphongpanich Co-advisor: Donald Hearn

Other committee members: Panos Pardalos, Ravindra Ahuja, William Hager Dissertation title: Nonlinear approximation techniques to solve network flow

problems with nonlinear arc cost functions.

MS

1999 - 2001

Department of Industrial and Systems Engineering, American University of

Armenia, Yerevan, Armenia

MS

1996 – 1998

Department of Mathematics, Graduate School of Armenian State Engineering

University, Yerevan, Armenia

BS

1991 – 1996

Department of Mathematics, Yerevan State University, Yerevan, Armenia

E m p l o y m e n t :

2009–Pres.

President of ArdInnoTech LLC, Yerevan, Armenia

Established a company for outsourcing software development in Armenia. Created a team of professional software developers that can effectively handle large and small projects. The company successfully completed several projects involving development of standalone engines as well as development of web based interfaces for existing engines. The team is capable of developing software using C++, C#, Java and other programming languages using SQL Server, Oracle, MySQL or any other database. Intensively using ASP.Net, .Net, Silver Light, JSP, and other technologies.

2009–Pres.

Director of Research & Development, Innovative Scheduling Inc., Gainesville,

USA

Supervising development and maintenance of Innovative Locomotive Simulation Optimizer (ILSO) and Locomotive Shop Router (LSR ) projects for CSX. Duties include monitoring system performance, conducting different studies, consulting on problems arising, suggesting different enhancements to improve the performance, creating a budget and a task plan for enhancements, supervising a team of developers to complete all task on time and deploy the updated software.

Supervising development of Truckline Network Planning System (TNPS) for trucking industry. Responsible for the complete cycle of the new software development, which includes studding business needs for the software, writing documents and presentations describing business issues, designing software interface, database structure and architecture, developing different optimization methods to solve complex problem arising, supervising a team of programmers to implement the software, programming, testing and debugging programs, preparing user guides and other documents and deploying final product.

2007–2008

Project Manager, Innovative Scheduling Inc., Gainesville, USA

Project manager of Locomotive Simulation, Curfew Planning and Locomotive Shop Router projects for CSX. Assisting in Container Deployment project of Pacer. Responsible for the complete cycle of new software development, which includes studding business cases for different clients, writing documents and presentation describing in detail business issues, creating optimization models to solve business problems, designing software architecture, and supervising a team of programmers to implement the software, programming, testing and debugging programs, preparing user guides and other documents and deploying final product.

2006 – 2007

_{Adjunct Assistant Professor, Department of Industrial and Systems Engineering,}

University of Florida, Gainesville, USA

Research on optimization techniques in data mining and its applications in biomedicine. Development of heuristic as well as exact algorithms to solve 0-1 fractional programming formulations of the problems.

Research on modeling and computational methods on complex transit systems with imbedded road networks, metro networks and buss routs. Development of parallel computing algorithms and their implementation on multi-cluster computers.

2002 – 2006

Research Assistant, Department of Industrial and Systems Engineering,

University of Florida, Gainesville, USA

Research on concave piecewise linear and fixed charge network flow problems, dynamic pricing, dynamic traffic assignment problems, dynamic toll pricing framework, and other network flow problems with nonlinear arc cost functions. Modeling and solving system optimum and user equilibrium problems. Development of heuristic algorithms for NP-hard problems.

1999 – 2002

Leading System Level Tester, Quality Assurance Department, Heuristic Physics

Laboratories – Armenia L.L.C. (subsidiary of Synopsys, Inc., USA)

Testing the interaction of different programs in the system before delivering the product to a client in the semiconductor industry (IBM, Toshiba, Fujitsu, and Philips). Installation of the system on multiple computers and simulation of the working process on real data. Testing the compatibility of different versions of the products with the core structure, the database requirements, and the file format agreement of the system. Design of automated processes for data collection, statistical analysis, and construction of the final graphs and tables. Leading temporarily created groups in the department to manage large projects or newly developed products. Interaction with clients to clarify the problem and propose a solution.

1996 – 1999

_{Assistant of the Section Head, Translation and Publication Section, Center of}

Business Research and Development, American University of Armenia

Assisting the section head on writing publication grants, monitoring the process in the publication house, marketing of the books. Computing salaries and taxes of subcontracting employees. Design and page making of books and dictionaries.

1998 – 1999

_Teaching

Teaching private computer classes on Windows, Word, Excel, Access, Corel, Page Maker, Quark Express and other software. Teaching basics in Java and C++ programming languages

1993 – 1995

_{Leading Specialist in Computer Data Analysis, “Armenian Environment” Social}

Research Center

Development and design of questionnaires for interviews, databases design, statistical analysis of the collected data and writing final reports.

P u b l i c a t i o n s :

Papers:

1. Nahapetyan A., Lawphongpanich S., “Discrete-Time Dynamic Traffic Assignment Model with Periodic Planning Horizon: System Optimum”, Journal of Global Optimization 38(1), pp. 41-60, 2007.

2. Nahapetyan A., Pardalos P., “A Bilinear Relaxation Based Algorithm for Concave Piecewise Linear Network Flow Problem”, Journal of Industrial and Management Optimization 3(1), pp. 71-85, 2007.

3. Nahapetyan A., Pardalos P., “Adaptive Dynamic Cost Updating Procedure for Solving Fixed Charge Network Flow Problems.”, Computational Optimization and Applications journal, 39(1), pp. 37-50, 2008.

4. Nahapetyan A., Pardalos P., “A Bilinear Reduction Based Algorithm for Solving

Capacitated Multi-Item Dynamic Pricing Problems”, Computers & Operations Research journal, 35(5), pp. 1601-1612, 2008.

5. Nahapetyan A., Lawphongpanich S., “Dynamic Toll Pricing Framework for Discrete-Time Dynamic Traffic Assignment Models”, submitted to the Transportation Research Part B journal.

6. Nahapetyan A., Ahuja R., Sargut Z., Jhon A., Somani K., “A Simulation/Optimization Framework for Locomotive Planning”, proceeding of the ATMOS 2007 workshop, Algorithmic Approaches for Transportation Modeling, Optimization, and Systems, pp. 259-276, 2007.

7. Rebennack S., Nahapetyan A., Pardalos P., “Bilinear Modeling Approach for Fixed Charge Network Flow Problems”, Optimization Letters journal, 3(3), pp. 347-355, 2009.

Books:

8. Nahapetyan A., Busygin S., Prokopyev O. and Pardalos P., “The Improved Heuristic for Consistent Biclustering Problems”, Mathematical Modeling of Biosystems, Springer-Velgar Berlin, Heidelberg, pp. 185-198, 2008.

9. Nahapetyan A., “Bilinear Programming”, Encyclopedia of Optimization, 2nd Edition, Springer, pp. 279-282, 2008.

10. Nahapetyan A., “Bilinear Programming: Application in Supply Chain Management”, Encyclopedia of Optimization, 2nd Edition, Springer, pp. 282-288, 2008.

11. Pardalos P., Yatsenko V., Chinchuluun A., and Nahapetyan A., “Differentiable Games of Multiple Agents and Geometric Structures”, Game Theory and Equilibria book, Springer Series on Optimization and its Applications, accepted for publication. 12. Kundakcioglu E., Nahapetyan A., Busygin S., and Pardalos P., “Models and Issues in

Consist Biclustering”, the chapter is submitted to Clustering Challenges Biological Networks book

R e s e a r c h I n t e r e s t s :

Continuous approximations and solution methods for complex combinatorial problems. Computational methods for solving NP-hard problems: heuristic and exact algorithms. Applications in supply chain management, logistics, transportation science, biomedicine and military. Problems with dynamic settings and pricing decisions. Linear/Nonlinear Programming, Mixed Integer Programming, Global Optimization Techniques, Game Theory, Variational Inequalities.

T e a c h i n g E x p e r i e n c e :

• Lecturer (anticipated), “Operations Research 1”, ESI-4312, (Spring 2007, BS class)

• Teaching Assistant, “Applied Probability Methods in Engineering”, ESI-6321, for Outreach

Engineering Management Program (Spring 2004, MS class)

• Teaching Assistant, “Deterministic Methods of Operations Research”, ESI-6314, for Outreach

Engineering Management Program (Fall 2004, MS class)

• Teaching Assistant, “Deterministic Methods of Operations Research”, ESI-6314 for on-campus

students (Fall 2002 and Fall 2004, MS class)

• Teaching Assistant, “Introduction to Non-Linear Optimization”, ESI-6429 for on-campus

students (Spring 2002, PhD class)

• Teaching private computer classes on large variety of software including Windows, Word,

Excel, Access, Corel, Page Maker, Quark Express and other programs. Teaching basics in Java and C++ programming languages (1998-1999)

C o m p u t e r S k i l l s :

Programming on Java, C, C++, C#, and MatLab. Intensive experience with modeling and solving problems using GAMS, CPLEX, LINDO, and LINGO. Some programming experience on VBA and Pascal. Intensive experience with SQL, writing views, functions, procedures and triggers in SQL Server and Oracle databases.

H o n o r s :

• Outreach Engineering Management Scholarship, University of Florida, 2003-2006. • Honorable Full Tuition Scholarship, American University of Armenia, 1999-2001. • High Honor Diploma, Yerevan State University, 1996.

R e f e r e n c e s :

Prof. Donald W. Hearn

Address: Department of Industrial and Systems Engineering, University of Florida, 303 Weil Hall, PO Box 116595, Gainesville, FL 32611

Phone: (352) 392-1464 Fax: (352) 392-3537 Email: [email protected]

Web: _{http://www.ise.ufl.edu/hearn/}

Prof. Panos Pardalos

Optimization)

Address: Department of Industrial and Systems Engineering, University of Florida, 303 Weil Hall, PO Box 116595, Gainesville, FL 32611

Phone: (352) 392-1464 ext. 2017 Fax: (352) 392-3537

Email: [email protected]

Web: http://www.ise.ufl.edu/pardalos/

Prof. Ravindra K. Ahuja

Address: Department of Industrial and Systems Engineering, University of Florida, 303 Weil Hall, PO Box 116595, Gainesville, FL 32611

Phone: (352) 392-1464 ext. 2004 Fax: (352) 392-3537

Email: [email protected]

Web: _{http://www.ise.ufl.edu/ahuja/}

Dr. Siriphong Lawphongpanich

Address: Department of Industrial and Systems Engineering, University of Florida, 303 Weil Hall, PO Box 116595, Gainesville, FL 32611

Phone: (352) 392-1464 ext. 2015 Fax: (352) 392-3537

Email: [email protected]

Web: _{http://www.ise.ufl.edu/toi/}

Prof. Berc Rustem

Address: Department of Computing, Imperial Collage, 180 Queen’s Gate, London, SW7 2BZ, UK

Phone: +44 (0)20 7594 8345 Fax: +44 (0)20 7581 8024 Email: [email protected]