Publications de Prem Kumar | EPFL Graph Search

Optimizing Fueling Decisions for Locomotives in Railroad Networks

Even though rail transportation is one of the most fuel efficient forms of surface transportation, the cost of fuel constitutes one of the major categories of very high operating costs for railroad companies. In the United States, unlike in Europe, fueling ...

2015

Introducing a preliminary Consists Selection in the Locomotive Assignment Problem

Michel Bierlaire, Francesco Piu, Prem Kumar

The Locomotive Assignment Problem (LAP) is a class of planning and scheduling problems solved by assigning a fleet of locomotives to a network of trains. In the planning versions of the LAP, the type of consist (a group of linked locomotives) assigned to e ...

Elsevier2015

Multi-Objective Airport Gate Assignment Problem in Planning and Operations

Michel Bierlaire, Prem Kumar

We consider the assignment of gates to arriving and departing flights at a large hub airport. This problem is highly complex even in planning stage when all flight arrivals and departures are assumed to be known precisely in advance. There are various cons ...

Wiley-Blackwell2014

A DSS to Optimize Facings on the Shelf of a Retail Store

Prem Kumar

This paper aims to maximize the profitability of a set of brand SKUs stocked at a particular retailer by optimizing the number of facings for each product. Based on the past data, a set of variables such as retail price of different SKUs, linear footage th ...

2010