A Sampling-Based Metaheuristic for the Orienteering Problem with Stochastic Travel Times
نویسندگان
چکیده
منابع مشابه
Hybrid Sampling-Based Evaluators for the Orienteering Problem with Stochastic Travel and Service Times
Stochastic Combinatorial Optimization Problems (SCOPs) are many times used to model more accurately realistic situations. However, the stochasticity introduced also perplexes the computation of the objective function making it either difficult to solve or in our case very timeconsuming. In this paper, we present different techniques of evaluating the objective function of the Orienteering Probl...
متن کاملNetwork Location Problem with Stochastic and Uniformly Distributed Demands
This paper investigates the network location problem for single-server facilities that are subject to congestion. In each network edge, customers are uniformly distributed along the edge and their requests for service are assumed to be generated according to a Poisson process. A number of facilities are to be selected from a number of candidate sites and a single server is located at each facil...
متن کاملA hybrid meta-heuristic algorithm for the vehicle routing problem with stochastic travel times considering the driver's satisfaction
A vehicle routing problem is a significant problem that has attracted great attention from researchers in recent years. The main objectives of the vehicle routing problem are to minimize the traveled distance, total traveling time, number of vehicles and cost function of transportation. Reducing these variables leads to decreasing the total cost and increasing the driver's satisfaction level. O...
متن کاملSampling-Based Objective Function Evaluation Techniques for the Orienteering Problem with Stochastic Travel and Service Times
In this paper, we introduce a variant of the orienteering problem in which travel and service times are stochastic. If a delivery commitment is made to a customer and is completed by the end of the day, a reward is received, but if a commitment is made and not completed, a penalty is incurred. This problem reflects the challenges of a company who, on a given day, may have more customers than it...
متن کاملObjective function evaluation methods for the orienteering problem with stochastic travel and service times
In this paper, a variant of the orienteering problem in which the travel and service times are stochastic, is examined. Given a set of potential customers, a subset of them has to be selected to be serviced by the end of the day. Every time a delivery to a selected customer is fulfilled before the end of the day, a reward is received, otherwise, if the delivery is not completed, a penalty is in...
متن کامل