1. Lawrence Berkeley National Laboratory, Berkeley, CA, USA
2. Department of Industrial Engineering, Pontifical Catholic University, Rio de Janeiro, Brazil
3. Department of Electrical Engineering, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro, Brazil
4. Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI, USA
5. Departament of Industrial and Systems Engineering, University of Washington Seattle Campus, Seattle, WA, USA