I did my undergraduate and M.S. in Istanbul at Bogazici University, Dept. of IE. I received my Ph.D. in New York from Columbia University, Dept. of IEOR.
After Columbia, I spent a year at CORE (Belgium) and two years at Cornell University, School of ORIE as a visiting scientist. Before joining the Math Sciences Department at IBM in 2000, I was working at AT&T Labs.
Mixed-integer programming, combinatorial optimization, multicommodity flows.
Modeling, optimization and computation, especially applied to logistics, routing, workforce scheduling and network design.
Telecommunications network design, call center workforce scheduling, multi-period, multi-item production planning, winner determination for combinatorial spectral auctions, limousine fleet scheduling, airmail optimizer for USPS, container port optimization, vehicle routing and fleet scheduling with time-windows, compiler loop optimization for IBM AIX Compiler, classroom scheduling, oil pipeline batch sequencing and flow rate optimization, box-QP solver for IBM-ILOG Cplex, site selection in agriculture.
Associate Editor, Networks (2004-2015), Math. Programming Computation (2008-2016 ), Operations Research (2011- Present), Math of OR (2018- Present).
Area Editor, Optimization and Engineering (2016- Present)
Editorial Board, MOS/SIAM Book Series on Optimization (2008-2014)
Steering Committee, IPCO (2016- Present)
Program Committee, MIP (2006,2007), IPCO (2010,2011,2016), ISCO (2014), Informs OS (2016)
IBM unit representative serving on the DIMACS Executive Committee (2018 - Present)
Chair of Organizing Committee, IPCO 2011.
Vice Chair for Integer Programming, INFORMS Optimization Society (2009-2011)
Chair of The Young Researchers Prize Committee, INFORMS Optimization Society (2019).
Panel member and reviewer for the U.S, Canadian, Israeli and Swiss National Science Foundations.