نتایج جستجو برای Robust planning

تعداد نتایج: 264869  

2009
Matthew Roughan,

Building a network encompasses many tasks: from network planning to hardware installation and configuration, to ongoing maintenance. In this chapter we focus on the process of network planning. It is possible (though not always wise) to design a small network by eye, but automated techniques are needed for the design of large networks. The complexity of such networks means that any “ad hoc” des...

Journal: :Annals OR 2014
Lanah Evers, Twan Dollevoet, Ana Isabel Barros, Herman Monsuur,

Unmanned Areal Vehicles (UAVs) can provide significant contributions to information gathering in military missions. UAVs can be used to capture both full motion video and still imagery of specific target locations within the area of interest. In order to improve the effectiveness of a reconnaissance mission, it is important to visit the largest number of interesting target locations possible, t...

2008
R. PEPY, M. KIEFFER, E. WALTER,

This paper is devoted to path planning when the safety of the system considered has to be guaranteed in the presence of bounded uncertainty affecting its model. A new path planner addresses this problem by combining Rapidly-exploring Random Trees (RRT) and a set representation of uncertain states. An idealized algorithm is presented first, before a description of one of its possible implementat...

Perishability of blood products as well as uncertainty in demand amounts complicate the management of blood supply for blood centers. This paper addresses a mixed-integer linear programming model for blood platelets production planning while integrating the processes of blood collection as well as production/testing, inventory control and distribution. Whole blood-derived production methods for...

2012
S. Tréfond, H. Djellab, E. Escobar, A. Billionnet, S. Elloumi,

This paper deals with an investigation of combinatorial and robust optimization models to solve rolling-stock planning problems for passenger trains. Here robustness means that rolling-stock can better deal with some disruptions of the railway system. The proposed method is based on optimization and simulation techniques to handle the problem with imperfect information on data. The goal of the ...

2005
Olivier Buffet, Douglas Aberdeen,

Stochastic Shortest Path problems (SSPs), a subclass of Markov Decision Problems (MDPs), can be efficiently dealt with using Real-Time Dynamic Programming (RTDP). Yet, MDP models are often uncertain (obtained through statistics or guessing). The usual approach is robust planning: searching for the best policy under the worst model. This paper shows how RTDP can be made robust in the common case...

2009
Apostolos Bessas, Spyros C. Kontogiannis, Christos D. Zaroliagis,

The problem of robust line planning requests for a set of origin-destination paths (lines) along with their frequencies in an underlying railway network infrastructure, which are robust to fluctuations of real-time parameters of the solution. In this work, we investigate a variant of robust line planning stemming from recent regulations in the railway sector that introduce competition and free ...

1996
Fernando De la Rosa, Christian Laugier,

347 Robust Path Planning in the Plane Fernando De la Rosa, Christian Laugier and Jos e N ajera Abstract|This work presents an approach to plan motion strategies for robotics tasks constrained by uncertainty in position, orientation and control. Our approach operates in a (x; y; ) con guration space and it combines two local functions: a contact-based attraction function and an exploration funct...

2006
Olivier Buffet, Douglas Aberdeen,

Real-world Decision-Theoretic Planning (DTP) is a very challenging research field. A common approach is to model such problems as Markov Decision Problems (MDP) and use dynamic programming techniques. Yet, two major difficulties arise: 1dynamic programming does not scale with the number of tasks, and 2the probabilistic model may be uncertain, leading to the choice of unsafe policies. We build h...

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