Grants per year

## Personal profile

### Research Interests

Operations management, network design, combinational optimization.

### Education/Academic qualification

Operations Research, PhD, SUNY at Stony Brook

… → 1986

Operations Research, MS, SUNY at Stony Brook

… → 1984

Mechanical Engineering, BT, IIT Delhi

… → 1981

## Fingerprint Fingerprint is based on mining the text of the experts' scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

- 2 Similar Profiles

Facet
Mathematics

Polyhedron
Mathematics

Supply chains
Engineering & Materials Science

Steiner Tree Problem
Mathematics

Extended Formulations
Mathematics

Integer programming
Engineering & Materials Science

Formulation
Mathematics

LP Relaxation
Mathematics

##
Network
Recent external collaboration on country level. Dive into details by clicking on the dots.

## Grants 2005 2021

## Participant Support Costs for Exploiting Network Structure in Routing Problems: Applications to School Bus Routing (RET & REU)

Chopra, S., Smilowitz, K. R. & Wilson, J. H.

9/1/17 → 8/31/21

Project: Research project

Bus transportation

Scheduling

Students

Costs

Operations research

## Exploiting Network Structure in Routing Problems: Applications to School Bus Routing

Chopra, S., Smilowitz, K. R. & Wilson, J. H.

9/1/17 → 8/31/21

Project: Research project

Bus transportation

Scheduling

Students

Operations research

Cost reduction

## Research Output 1987 2019

## Disruption risk management in serial multi-echelon supply chains

Lücker, F., Chopra, S. & Seifert, R. W., Jan 1 2019, In : Foundations and Trends in Technology, Information and Operations Management. 12, 2-3, p. 298-315 18 p.Research output: Contribution to journal › Article

Open Access

Serials

Risk management

Disruption

Supply chain

Multi-echelon

## A concise characterization of strong knapsack facets

Chopra, S., Shim, S. & Steffy, D. E., Jan 1 2018, (Accepted/In press) In : Discrete Applied Mathematics.Research output: Contribution to journal › Article

Knapsack

Facet

Linear programming

Experiments

Shooting

## The Evolution of Omni-Channel Retailing and its Impact on Supply Chains

Chopra, S., Jan 1 2018, In : Transportation Research Procedia. 30, p. 4-13 10 p.Research output: Contribution to journal › Conference article

Supply chains

customer

supply

Costs

costs

2
Citations
(Scopus)

## An extended formulation of the convex recoloring problem on a tree

Chopra, S., Filipecki, B., Lee, K., Ryu, M., Shim, S. & Van Vyve, M., Oct 1 2017, In : Mathematical Programming. 165, 2, p. 529-548 20 p.Research output: Contribution to journal › Article

Extended Formulations

Polynomials

Valid Inequalities

Formulation

Phylogenetic Tree

1
Citation
(Scopus)

## Column generation approach to the convex recoloring problem on a tree

Chopra, S., Erdem, E., Kim, E. & Shim, S., Jan 1 2017,*Modeling and Optimization: Theory and Applications- MOPTA, Selected Contributions.*Takac, M. & Terlaky, T. (eds.). Springer New York LLC, p. 39-53 15 p. (Springer Proceedings in Mathematics and Statistics; vol. 213).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Column Generation

Colored Graph

Dynamic Programming

Subgraph

Polynomial time